5/16-18 Square Head Bolts
Square Head Bolts were once the most common form of bolt, until they were replaced by hex head bolts. They are covered under ANSI Standard B18.2.1 and are now most commonly used for aesthetic purposes to provide a rustic look .
185 results, (click on any line for more information)
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Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
Delta Secondary | IL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 5/8 | 41500 |
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JET FITTING | CA | Square Head Bolt | Steel | Plain | 5/16-18 x 3/4 | bolt square 5/1618x3/4 s b18.2.1 | 600 |
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JET FITTING | CA | Square Head Bolt | Steel | Black Oxide | 5/16-18 x 3/4 | bolt square 5/16-18x3/4 steel black oxide and wax b18.2.1 | 2000 |
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ACCURATE | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 3/4 | bolt square machine | 50 |
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Century | FL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 3/4 | 5/16-18 x 3/4 square head bolt grade 2 (STEEL ZINC CLEAR) (STEEL ZINC CLEAR) | 1776 |
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SRF | AL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 3/4 | square hd bolt | 66 |
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ZAL INDUS | CA | Square Head Bolt | Grade 2 | Zinc/Clear | 5/16-18 x 3/4 | 5/16-18 x 3/4 sq hd mach bolt grade 2 pltd | 100 |
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ASMC | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 3/4 | coarse square hd m/b low carb zp | 2,600 |
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Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 3/4 | square bolt | 1313 |
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BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 5/16-18 x 3/4 | bolt & c/s square boltsquare b18.2.1 | 5500 |
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Kanebridge | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 3/4 | 5/16-18x3/4 square machine bolt plain | 20,000 |
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Liberty | IL | Square Head Bolt | Grade 5 | Zinc/Yellow | 5/16-18 x 3/4 | square m/b | 300 |
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ASMC | IL | Square Head Bolt | Grade A | Galvanized | 5/16-18 x 3/4 | a307 gra square hd m/b low carb hdg b18.2.1 | 1,400 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 3/4 | f/t square hd m/b astm a307 | 1,500 |
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SWACO | OH | Square Head Bolt | Grade A | Plain | 5/16-18 x 3/4 | 5/16-18x3/4 a307 gr a square hd bolt pl | 600 |
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JET FITTING | CA | Square Head Bolt | Grade A | Plain | 5/16-18 x 3/4 | 5/16-18x3/4 a307 gr a square hd bolt pl 747046 b18.2.1 | 600 |
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THRDFAST | MS | Square Head Bolt | Steel | Plain | 5/16-18 x 3/4 | square hd bolt b18.2.1 | 80 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 | bolt square machine | 1000 |
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American | NY | Square Head Bolt | Steel | Zinc/Yellow | 5/16-18 x 1 | square m/s bolt | 170 |
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SRF | AL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 1 | square hd bolt | - |
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Cal Fastenrs | CA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 | square hd mach bolt square hd bolt | 700 |
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Future Fastener | TX | Square Head Bolt | Grade 2 | Galvanized | 5/16-18 x 1 | 5/16-18 x 1 g2 (sq head mch bolt) galv | 281 |
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BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 5/16-18 x 1 | bolt & c/s square boltsquare b18.2.1 | 5000 |
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Kanebridge | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 1 | 5/16-18x1 square machine bolt plain | 20,000 |
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ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 5/16-18 x 1 | a307 gra square hd m/b low carb zp | 650 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 1 | f/t square hd m/b astm a307 | 1,300 |
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ASMC | IL | Square Head Bolt | Grade A | Galvanized | 5/16-18 x 1 | a307 gra square hd m/b low carb hdg | 880 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 | square m/b | 22,000 |
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GUIDON | NJ | Square Head Bolt | Steel | Tin | 5/16-18 x 1 | 5/16-18 x 1 square head battery bolt, tin zinc per gmw 3200 | 18,000 |
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Delta Secondary | IL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 1 | 3190 |
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Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 1 | square bolt | 1086 |
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Hodell | OH | Square Head Bolt | Steel | Galvanized | 5/16-18 x 1 | 5/16-18x1 square hd machine bolt hdg | 426 |
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Hodell | OH | Square Head Bolt | Steel | Galvanized | 5/16-18 x 1 | 5/16-18x1 square hd machine bolt hdg | 426 |
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AFI | FL | Square Head Bolt | Steel | Plain | 5/16-18 x 1 | 5/16-18x1 sq hd bolt st () () | 2275 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | bolt square machine | 4000 |
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Future Fastener | TX | Square Head Bolt | Steel | Galvanized | 5/16-18 x 1 1/4 | 5/16-18x1 1/4 square head mch bolt (hdg) | 1000 |
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Century | FL | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 square hd. bolt (STEEL ZINC PLT) (STEEL ZINC PLT) | 1800 |
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IRF | NJ | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18x1 1/4 sq head machine bolt stl zinc rohs 500149a00 | 600 |
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IRF | NJ | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18x1 1/4 sq head machine bolt stl zinc rohs 500149a00 | 1,400 |
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ZAL INDUS | CA | Square Head Bolt | Grade 2 | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 sq hd mach bolt grade 2 pltd | 2,050 |
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ASMC | IL | Square Head Bolt | Grade A | Galvanized | 5/16-18 x 1 1/4 | a307 gra square hd m/b low carb hdg | 775 |
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Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 1 1/4 | square bolt | 914 |
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Kanebridge | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/4 | 5/16-18x1 1/4 square machine bolt plain | 17.500 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/4 | f/t square hd m/b astm a307 | 1,100 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/4 | square m/b std thrd fsb astm a307 | 1,100 |
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XL Screw | GA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | f/t square hd m/b astm a307 zp | 1,200 |
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XL Screw | GA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | square hd m/b std thrd fsb astm a307 zp | 1,200 |
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ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 5/16-18 x 1 1/4 | a307 gra square hd m/b low carb zp | 565 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | square m/b | 5,000 |
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Hayes | CA | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 square hd bolt 18-8ss | 44 |
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XL Screw | GA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 3/8 | f/t square hd m/b astm a307 zp | 1,200 |
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XL Screw | GA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 3/8 | square hd m/b std thrd fsb astm a307 zp | 1,200 |
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Palmer Bolt | OH | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 3/8 | square mach bolt | 1,272 |
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QCS | OR | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 3/8 | 5/16-18x1-3/8 square head cap screw gold plated | 2200 |
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American | NY | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/2 | square m/b | 100 |
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B & K FAST | PA | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/2 square bolts plain b18.2.1 | 1126 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | bolt square machine f/t | 350 |
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Cal Fastenrs | CA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | square hd mach bolt emer excess | 825 |
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FasSpcMfg | FL | Square Head Bolt | 316, 317, A4 Stainless | Plain | 5/16-18 x 1 1/2 | square m/b 316 stainless | 1 |
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ZAL INDUS | CA | Square Head Bolt | Grade 2 | Zinc/Clear | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/2 sq hd mach bolt grade 2 pltd | 5,000 |
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KBS | TN | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/2 square hd mach.bolt b18.2.1 | 220 |
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Kanebridge | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/2 | 5/16-18x1 1/2 square machine bolt plain | 15,000 |
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Liberty | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | square bolt | 900 |
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IPC | VA | Square Head Bolt | Grade A | Zinc/Yellow | 5/16-18 x 1 1/2 | 5/16-18x1 1/2 square hd mach bolt a307 gr a steel zinc yellow | 9,075 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/2 | f/t square hd m/b astm a307 | 1,000 |
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XL Screw | GA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | f/t square hd m/b astm a307 zp | 1,200 |
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XL Screw | GA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | square hd m/b std thrd fsb astm a307 zp | 1,200 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | square fulthr m/b | 1,000 |
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ASMC | IL | Square Head Bolt | Grade A | Galvanized | 5/16-18 x 1 1/2 | a307 gra square hd m/b low carb hdg b18.2.1 | 625 |
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OSSCO | RI | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/2 | 5/16-18x1 1/2 square hd mach bolt b18.2.1 | 29 |
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Delta | TX | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | square hd bolt | 1512 |
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Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 1 1/2 | square bolt | 757 |
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WDMB | IA | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 9/16 | bolt u sq (18 8) 5/16-18x1 9/16 drw (W040) (W040) | 330 |
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BIG BOLT | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 16 | bolt & c/s square boltsquare b18.2.1 | 1000 |
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BIG BOLT | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 16 | bolt & c/s square boltsquare b18.2.1 | 500 |
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YANKEE | NH | Square Head Bolt | Steel | Plain | 5/16-18 x 1 3/4 | 5/16-18 x 1-3/4 square head bolt | 342 |
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American | NY | Square Head Bolt | Steel | Plain | 5/16-18 x 1 3/4 | square m/b f/t black | 60 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | bolt square machine | 100 |
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ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 5/16-18 x 1 3/4 | 5/16-18x1 3/4 a307 gra square hd machine bolt low carb zp | 1,050 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 1 3/4 | f/t square hd m/b astm a307 | 800 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 1 3/4 | square m/b std thrd fsb astm a307 | 800 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | square m/b | 3,000 |
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Hodell | OH | Square Head Bolt | Steel | Galvanized | 5/16-18 x 1 3/4 | 5/16-18x1 3/4 square hd mach bolt galv | 200 |
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Hodell | OH | Square Head Bolt | Steel | Galvanized | 5/16-18 x 1 3/4 | 5/16-18x1 3/4 square hd mach bolt galv | 200 |
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YANKEE | NH | Square Head Bolt | Steel | Plain | 5/16-18 x 2 | 5/16-18 x 2 square hd bolt | 192 |
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QFS | MI | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 | Square head set screw cup point STAINLESS STEEL | 150 |
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FasSpcMfg | FL | Square Head Bolt | 316, 317, A4 Stainless | Plain | 5/16-18 x 2 | square m/b 316 stainless | 2 |
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BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 5/16-18 x 2 | bolt & c/s square boltsquare b18.2.1 | 5000 |
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Kanebridge | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 2 | 5/16-18x2 square machine bolt plain | 12.500 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 2 | f/t square hd m/b astm a307 | 700 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 2 | square m/b std thrd fsb astm a307 | 700 |
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ASMC | IL | Square Head Bolt | Grade A | Galvanized | 5/16-18 x 2 | a307 gra square hd m/b low carb hdg | 750 |
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WDMB | IA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 2 1/8 | bolt u sq st (zn) 5/16-18x2 1/8 drw | 29 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 2 1/4 | square m/b | 1,600 |
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THRDFAST | MS | Square Head Bolt | Steel | Plain | 5/16-18 x 2 1/4 | square hd bolt b18.2.1 | 80 |
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American | NY | Square Head Bolt | Steel | Plain | 5/16-18 x 2 1/2 | square m/b | 50 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 2 1/2 | bolt square machine | 1550 |
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ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 2 1/2 | 895 |
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ZAL INDUS | CA | Square Head Bolt | Steel | Plain | 5/16-18 x 2 1/2 | 5/16-18 x 2 1/2 sq hd mach bolt | 553 |
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Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 2 1/2 | square bolt | 479 |
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BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 5/16-18 x 2 1/2 | bolt & c/s square boltsquare b18.2.1 | 5000 |
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Kanebridge | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 2 1/2 | 5/16-18x2 1/2 square machine bolt plain | 12.500 |
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Liberty | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 2 1/2 | square m/b machine bolt | 2,350 |
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Liberty | IL | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/2 | square m/b 18-8 st m/b 18-8 st | 26 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 2 1/2 | f/t square hd m/b astm a307 | 600 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 2 1/2 | square m/b std thrd fsb astm a307 | 600 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 2 1/2 | square m/b | 1,200 |
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ASMC | IL | Square Head Bolt | Grade A | Galvanized | 5/16-18 x 2 1/2 | a307 gra square hd m/b low carb hdg b18.2.1 | 350 |
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Valley Nu | WA | Square Head Bolt | Steel | Plain | 5/16-18 x 2 1/2 | nc square bolt pl | 1 |
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THRDFAST | MS | Square Head Bolt | Steel | Plain | 5/16-18 x 2 1/2 | square hd bolt b18.2.1 | 100 |
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BIG BOLT | IL | Square Head Bolt | Grade 8 | Zinc/Clear | 5/16-18 x 2 3/4 | bolt & c/s square boltsquare b18.2.1 | 1580 |
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Valley Nu | WA | Square Head Bolt | Steel | Plain | 5/16-18 x 2 3/4 | nc square bolt pl | 8 |
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YANKEE | NH | Square Head Bolt | Steel | Plain | 5/16-18 x 3 | 5/16-18 x 3 square hd bolt | 136 |
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American | NY | Square Head Bolt | Steel | Cadmium | 5/16-18 x 3 | square bolt | 700 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 3 | bolt square machine f/t | 5725 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 3 | bolt square machine | 1265 |
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ASMC | IL | Square Head Bolt | Grade A | Galvanized | 5/16-18 x 3 | a307 gra square hd m/b low carb hdg b18.2.1 | 150 |
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ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 3 | 1060 |
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Jackson | MS | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 3 | square bolt gr. 2 | 179 |
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Komar | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 3 | 5/16-18x3 square hd machine bolt zinc | 2500 |
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ASMC | IL | Square Head Bolt | Grade A | Plain | 5/16-18 x 3 | (pt) coarse a307 gra square hd m/b low carb | 48 |
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BIG BOLT | IL | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 | bolt & c/s square bolt300 (a1 a2 18-8 304 310 etc.)square b18.2.1 | 500 |
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BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 5/16-18 x 3 | bolt & c/s square boltsquare b18.2.1 | 2900 |
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Kanebridge | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 3 | 5/16-18x3 square machine bolt plain | 10,000 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 3 | f/t square hd m/b astm a307 | 500 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 3 | square m/b std thrd fsb astm a307 | 500 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 3 | square m/b | 300 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 3 | square fulthr m/b | 3,000 |
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OSSCO | RI | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 3 | 5/16-18x3 square hd mach bolt plated b18.2.1 | 400 |
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Valley Nu | WA | Square Head Bolt | Steel | Plain | 5/16-18 x 3 | nc square bolt pl | 12 |
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Komar | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 3 | 5/16-18x3 square hd machine bolt zinc | 2500 |
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JET FITTING | CA | Square Head Bolt | Grade A | Plain | 5/16-18 x 3 1/2 | 5/16-18x3-1/2 (pt) square bolt steel a307 plain b18.2.1 | 500 |
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SRF | AL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 3 1/2 | square hd bolt | - |
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ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 5/16-18 x 3 1/2 | a307 gra square hd m/b low carb zp | 600 |
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BIG BOLT | IL | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 1/2 | bolt & c/s square bolt300 (a1 a2 18-8 304 310 etc.)square b18.2.1 | 1000 |
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Liberty | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 3 1/2 | square hd m/b 7/8 tl 7/8 tl | 500 |
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ASMC | IL | Square Head Bolt | Grade A | Plain | 5/16-18 x 3 1/2 | (pt) coarse a307 gra square hd m/b low carb | 450 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 3 1/2 | square m/b | 5,000 |
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JET FITTING | CA | Square Head Bolt | Grade A | Plain | 5/16-18 x 3 1/2 | 5/16-18x3 1/2 a307 gr a square hd bolt 747061 b18.2.1 | 320 |
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SWACO | OH | Square Head Bolt | Grade A | Plain | 5/16-18 x 3 1/2 | 5/16-18x3 1/2 a307 gr a square hd bolt | 320 |
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American | NY | Square Head Bolt | Steel | Plain | 5/16-18 x 4 | square bolt | 2450 |
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ACCURATE | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 4 | bolt square machine | 43 |
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SRF | AL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 4 | square hd bolt | - |
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BIG BOLT | IL | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 4 | bolt & c/s square bolt300 (a1 a2 18-8 304 310 etc.)square b18.2.1 | 1500 |
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BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 5/16-18 x 4 | bolt & c/s square boltsquare b18.2.1 | 34100 |
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Kanebridge | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 4 | 5/16-18x4 square machine bolt plain | 7.500 |
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Liberty | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 4 | square m/b f/t m/b f/tead | 450 |
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Liberty | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 4 | square m/b machine bolt | 205 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 4 | f/t square hd m/b astm a307 | 400 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 4 | square m/b std thrd fsb astm a307 | 400 |
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Valley Nu | WA | Square Head Bolt | Steel | Plain | 5/16-18 x 4 | nc square bolt pl | 4 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 4 1/4 | square m/b | 1,200 |
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Liberty | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 4 1/2 | 5/16-18x4-1/2 square m/b 1 5/6 tl m/b 1 5/6 tl | 180 |
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MidStates | MI | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 4 1/2 | 5/16-18 x 4 1/2 square hd bolt gr 2 pln | 272 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 4 1/2 | square m/b | 200 |
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American | NY | Square Head Bolt | Steel | Plain | 5/16-18 x 5 | square bolt | 700 |
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American | NY | Square Head Bolt | Steel | Plain | 5/16-18 x 5 | square m/s bolt black | 450 |
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SRF | AL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 5 | square hd bolt | 17 |
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ASMC | IL | Square Head Bolt | Grade A | Plain | 5/16-18 x 5 | (pt) coarse a307 gra square hd m/b low carb | 150 |
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BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 5/16-18 x 5 | bolt & c/s square boltsquare b18.2.1 | 5000 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 5 | square m/b std thrd fsb astm a307 | 350 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 5 | square m/b | 1,000 |
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Valley Nu | WA | Square Head Bolt | Steel | Plain | 5/16-18 x 5 | nc square bolt pl | 12 |
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American | NY | Square Head Bolt | Steel | Plain | 5/16-18 x 5 1/2 | square m/s bolt black | 500 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 5 1/2 | square m/b | 600 |
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Hayes | CA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 5 1/2 | 5/16-18 x 5 1/2 square hd bolt zinc | 19 |
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Valley Nu | WA | Square Head Bolt | Steel | Plain | 5/16-18 x 5 1/2 | nc square bolt pl | 11 |
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ASMC | IL | Square Head Bolt | Grade A | Plain | 5/16-18 x 6 | (pt) coarse a307 gra square hd m/b low carb | 275 |
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BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 5/16-18 x 6 | bolt & c/s square boltsquare b18.2.1 | 4700 |
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BIG BOLT | IL | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 6 | bolt & c/s square bolt300 (a1 a2 18-8 304 310 etc.)square b18.2.1 | 500 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 5/16-18 x 6 | square m/b std thrd fsb astm a307 | 300 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 6 | square m/b | 300 |
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Hayes | CA | Square Head Bolt | Steel | Plain | 5/16-18 x 6 | 5/16-18 x 6 square hd bolt pln | 34 |
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Hayes | CA | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 6 | 5/16-18 x 6 square hd bolt zinc | 40 |
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Valley Nu | WA | Square Head Bolt | Steel | Plain | 5/16-18 x 6 | nc square bolt pl | 9 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 6 1/2 | square m/b | 25 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 7 | bolt square machine | 450 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 5/16-18 x 7 | square m/b | 916 |
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WDMB | IA | Square Head Bolt | Steel | Plain | 5/16-18 x 7 1/4 | bolt bnt sq st 5/16-18x7.25 (W030) (W030) (#N/A) | 32 |
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WSB | KY | Square Head Bolt | Steel | Plain | 5/16-18 x 7 1/4 | blt bnt sq st 5/16-18x7.25 b18.2.1 | 32 |
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BIG BOLT | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 9 1/2 | bolt & c/s square boltsquare b18.2.1 | 3398 |
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BIG BOLT | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 10 | bolt & c/s square boltsquare b18.2.1 | 1000 |
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Liberty | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 10 | square m/b machine bolt | 173 |
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BIG BOLT | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 12 | bolt & c/s square boltsquare b18.2.1 | 1000 |
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BIG BOLT | IL | Square Head Bolt | Steel | Plain | 5/16-18 x 14 | bolt & c/s square boltsquare b18.2.1 | 500 |
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