1 inch length 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 .
95 results, (click on any line for more information)
Buy Square Head Bolts from one of our FCH Network Members | ||||||||
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Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
Jackson | MS | Square Head Bolt | Grade 2 | Zinc/Clear | 5/16 x 1 | nc square bolt gr. 2 | 82 |
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Jackson | MS | Square Head Bolt | Grade 5 | Zinc/Clear | 1/2-13 x 1 | nc square bolt gr.5 | 46 |
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Jackson | MS | Square Head Bolt | Grade 2 | Zinc/Clear | 1/2-13 x 1 | 1/2 square bolt gr. 2 | 772 |
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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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Jackson | MS | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 1 | nc square bolt gr. 2 | 278 |
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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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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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ASMC | IL | Square Head Bolt | Grade A | Plain | 1/2-13 x 1 | (ft) coarse a307 gra square hd m/b low carb b18.2.1 | 260 |
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ASMC | IL | Square Head Bolt | Grade A | Galvanized | 3/8-16 x 1 | a307 gra square hd m/b low carb hdg | 21 |
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ASMC | IL | Square Head Bolt | Grade A | Plain | 3/8-16 x 1 | (ft) coarse a307 gra square hd m/b low carb | 250 |
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ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 1/4-20 x 1 | a307 gra square hd m/b low carb zp | 2,333 |
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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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ASMC | IL | Square Head Bolt | Grade A | Plain | 1/4-20 x 1 | (ft) coarse a307 gra square hd m/b low carb | 500 |
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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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ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 3/8-16 x 1 | a307 gra square hd m/b low carb zp | 77 |
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GLF | OH | Square Head Bolt | Grade A | Plain | 5/16-18 x 1 sq hd bolt a307 stl pln | () | 1300 |
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Endries | WI | Square Head Bolt | Steel | Zinc/Clear | 5/16-18x1 square head machine bolt zinc | 27222 |
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Set Screw | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 1 | square knurled cup point heat treat r/c-45 per print | inquire |
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Mansco | MI | Square Head Bolt | Grade 8 | Plain | 3/8-16 x 1 | 3/8-16x1 square hd machine bolt gr8 pln 100/box | 350 |
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Mansco | MI | Square Head Bolt | Steel | Zinc/Clear | 1/4-20 x 1 | 1/4-20 x 1 square hd machine bolt triv znc w/nylon patch | 2175 |
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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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ACCURATE | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 1 | bolt square machine | 1750 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 1/2-13 x 1 | bolt square machine | 830 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 1 | bolt square machine | 15056 |
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Liberty | IL | Square Head Bolt | Steel | Plain | 5/8-11 x 1 | square m/b bolt | 240 |
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Komar | IL | Square Head Bolt | Steel | Plain | 3/8-16 x 1 | 3/8-16x1 square hd machine bolt | 400 |
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American | NY | Square Head Bolt | Grade 5 | Plain | 5/16-24 x 1 | 5/16-24 x 1 square bolt grade 5 | 2220 |
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American | NY | Square Head Bolt | Grade 5 | Plain | 5/16-24 x 1 | 5/16-24 x 1 square bolt grade 5 plain | 672 |
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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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Alma Bolt | MI | Square Head Bolt | Grade 2 | Zinc/Clear | 1/2-13 x 1 | square bolt | 5279 |
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MFS | KS | Square Head Bolt | Grade 2 | Zinc/Yellow | 3/8-16 x 1 | square | 25 |
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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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Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 1 | square bolt | 693 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 1/4-20 x 1 | f/t square hd m/b astm a307 | 2,000 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 3/8-16 x 1 | 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 | f/t square hd m/b astm a307 | 1,300 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 1/4-20 x 1 | square m/b std thrd fsb astm a307 | 2,000 |
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XL Screw | GA | Square Head Bolt | Steel | Plain | 1/2-13 x 1 | square m/b std thrd fsb astm a307 | 460 |
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XL Screw | GA | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 1 | f/t square hd m/b astm a307 zp | 800 |
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SWACO | OH | Square Head Bolt | Grade A | Zinc/Clear | 3/8-16 x 1 | 3/8-16x1 a307 gr a square hd bolt zinc | 5 |
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MidStates | MI | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 1 | 5/8-11 x 1in square hd bolt gr 2 pln | 160 |
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Komar | IL | Square Head Bolt | Steel | Plain | 3/8-16 x 1 | square hd m/b | 400 |
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HBBOLT | CA | Square Head Bolt | Steel | Plain | 1/4-20 x 1 | square hd mb | 500 |
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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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BIG BOLT | IL | Square Head Bolt | Steel | Plain | 5/8-11 x 1 | bolt & c/s square boltsquare b18.2.1 | 525 |
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BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 1/4-20 x 1 | bolt & c/s square boltsquare b18.2.1 | 1200 |
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BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 3/8-16 x 1 | bolt & c/s square boltsquare b18.2.1 | 5000 |
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Liberty | IL | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 1 | square m/b machine bolt | 330 |
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Hodell | OH | Square Head Bolt | Steel | Plain | 1/2-13 x 1 | 1/2-13x1 square hd mach bolt plain | 368 |
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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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Hodell | OH | Square Head Bolt | Steel | Plain | 1/2-13 x 1 | 1/2-13x1 square hd mach bolt plain | 368 |
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ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 1 | 700 |
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ISSCO | MO | Square Head Bolt | Grade 2 | Zinc/Clear | 7/16-14 x 1 | 1025 |
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Delta Secondary | IL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 1 | 3190 |
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Delta Secondary | IL | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 1 | 650 |
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Cascade | OR | Square Head Bolt | Steel | Plain | 1/4-20 x 1 | square m/b b18.2.1 | 800 |
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B & K FAST | PA | Square Head Bolt | Steel | Galvanized | 1/4-20 x 1 | 1/4-20 x 1 galv square bolts b18.2.1 | 79 |
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ACF | CA | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1 | 1/4-20x1 s/s square head bolt with groove ( print ) | 33 |
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ACF | CA | Square Head Bolt | Grade 5 | Zinc/Clear | 5/16-24 x 1 | 5/16-24x1 square head cap screw gr5 z/p rohs | 200 |
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Kanebridge | IL | Square Head Bolt | Steel | Plain | 1/4-20 x 1 | 1/4-20x1 square machine bolt plain | 37.500 |
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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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Kanebridge | IL | Square Head Bolt | Steel | Plain | 3/8-16 x 1 | 3/8-16x1 square machine bolt plain | 15,000 |
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Kanebridge | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 1 | 1/2-13x1 square machine bolt plain | 7.500 |
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BHAM | AL | Square Head Bolt | Steel | Plain | 1/2-13 x 1 | 1/2-13x1 square hd mach bolt b18.2.1 | 25 |
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QFC | TX | Square Head Bolt | Grade 2 | Zinc/Clear | 3/8-16 x 1 | 3/8-16x1 sq head bolt gr2 zinc b18.2.1 | 70 |
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IRF | NC | Square Head Bolt | Steel | Zinc/Clear | 1/4-20 x 1 | blt stve trs w sq nut stl | 9600 |
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ZAL INDUS | CA | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 1 | 1/4-20 x 1 sq hd mach bolt grade 2 | 2,250 |
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ZAL INDUS | CA | Square Head Bolt | Steel | Plain | 1/2-13 x 1 | 1/2-13 x 1 sq hd mach bolt | 50 |
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ScrewsInc | OH | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 1 | 600 |
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Lippin | CA | Square Head Bolt | Steel | Plain | 3/8-16 x 1 | square head bolt plain | 820 |
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JET FITTING | CA | Square Head Bolt | Steel | Plain | 1/2-13 x 1 | 1/2-13x1 square machine bolts steel plain b18.2.1 | 450 |
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SRF | AL | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 1 | square hd bolt | 12 |
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SRF | AL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 1 | square hd bolt | - |
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SRF | AL | Square Head Bolt | Grade 2 | Galvanized | 3/8-16 x 1 | square hd bolt | 10 |
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SRF | AL | Square Head Bolt | Grade 2 | Plain | 7/16-14 x 1 | square hd bolt | 25 |
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SRF | AL | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 1 | square hd bolt | - |
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OBRIEN | OH | Square Head Bolt | Steel | Plain | 3/8-16 x 1 | square hd mach bolt | 750 |
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THRDFAST | FL | Square Head Bolt | Steel | Galvanized | 5/8-11 x 1 | square hd bolt hdg b18.2.1 | 291 |
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THRDFAST | AL | Square Head Bolt | Steel | Galvanized | 1/2-13 x 1 | square hd bolt hdg b18.2.1 | 194 |
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THRDFAST | AL | Square Head Bolt | Steel | Galvanized | 3/8-16 x 1 | square hd bolt hdg b18.2.1 | 15 |
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THRDFAST | MS | Square Head Bolt | Steel | Plain | 7/16-14 x 1 | square hd bolt b18.2.1 | 80 |
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WSB | KY | Square Head Bolt | Grade 2 | Zinc/Clear | 1/4-20 x 1 | blt sqr gr2 (zn) 1/4-20x1 b18.2.1 | 7,994 |
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GUIDON | NJ | Square Head Bolt | Steel | Zinc/Clear | 1/4-20 x 1 | square head machine bolt a307a | 600 |
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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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FMP | MA | Square Head Bolt | Steel | Plain | 1/4-20 x 1 | square bolt | 140 |
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FMP | MA | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 1 | square bolt | 455 |
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Valley Nu | WA | Square Head Bolt | Steel | Plain | 1/2-13 x 1 | nc square bolt pl | 21 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 1/2-13 x 1 | square m/b | 5,500 |
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ACCURATE | IL | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 1 | square m/b 18-8ss | 5,000 |
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ACCURATE | IL | Square Head Bolt | Steel | Plain | 5/8-11 x 1 | square m/b | 1,000 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 3/8-16 x 1 | square m/b | 21,000 |
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ACCURATE | IL | Square Head Bolt | Steel | Zinc/Clear | 7/16-14 x 1 | square m/b | 1,650 |
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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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ACCURATE | IL | Square Head Bolt | Steel | Plain | 3/4-10 x 1 | square m/b | 200 |
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