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3 inch length Square Head Bolts (ASME B18. 2.1)
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 .
43 results, (click on any line for more information)
| Buy Square Head Bolts from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| GLF | OH | Square Head Bolt | Grade A | Plain | 3/8-16 x 3 | 3/8-16x3 square hd bolt a307 stl pln b18.2.1 () () () | 28 |
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| GLF | OH | Square Head Bolt | Grade 5 | Plain | 3/4-10 x 3 | 3/4-10x3 square hd bolt grade 5 stl pln b18.2.1 () () () | 79 |
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| GLF | OH | Square Head Bolt | Grade 8 | Plain | 3/4-10 x 3 | 3/4-10x3 square hd bolt grade 8 stl pln b18.2.1 () () () | 5 |
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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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| ASMC | IL | Square Head Bolt | Grade A | Plain | 1/2-13 x 3 | (pt) coarse a307 gra square hd m/b low carb b18.2.1 | 25 |
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| ASMC | IL | Square Head Bolt | Grade A | Galvanized | 5/8-11 x 3 | a307 gra square hd m/b low carb hdg b18.2.1 | 18 |
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| ASMC | IL | Square Head Bolt | Grade A | Galvanized | 3/8-16 x 3 | a307 gra square hd m/b low carb hdg b18.2.1 | 325 |
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| ASMC | IL | Square Head Bolt | Grade A | Galvanized | 1/4-20 x 3 | a307 gra square hd m/b low carb hdg b18.2.1 | 128 |
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| ASMC | IL | Square Head Bolt | Grade A | Zinc/Clear | 3/4-10 x 3 | a307 gra square hd m/b low carb zp b18.2.1 | 5 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 3/4-10 x 3 | bolt & c/s square boltsquare fulthr b18.2.1 | 10900 |
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| BIG BOLT | IL | Square Head Bolt | Steel | Plain | 5/8-11 x 3 | bolt & c/s square bolt5/8-11x3square 2.5thd b18.2.1 | 8100 |
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| BIG BOLT | IL | Square Head Bolt | Grade 8 | Plain | 7/16-20 x 3 | bolt & c/s square boltsquare b18.2.1 | 500 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 1/4-20 x 3 | bolt & c/s square boltsquare b18.2.1 | 6000 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 5/8-11 x 3 | bolt & c/s square boltsquare b18.2.1 | 3000 |
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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 | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 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 | 1/2-13 x 3 | bolt & c/s square boltsquare b18.2.1 | 5000 |
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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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| BIG BOLT | IL | Square Head Bolt | Grade 8 | Plain | 7/16-14 x 3 | bolt & c/s square boltsquare b18.2.1 | 1500 |
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| BIG BOLT | IL | Square Head Bolt | Grade 8 | Zinc/Yellow | 3/4-16 x 3 | bolt & c/s square boltfulthr b18.2.1 | 500 |
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| BIG BOLT | IL | Square Head Bolt | Steel | Plain | 5/8-11 x 3 | bolt & c/s square boltsquare b18.2.1 | 9300 |
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| BIG BOLT | IL | Square Head Bolt | Grade 8 | Plain | 1/2-13 x 3 | bolt & c/s square boltsquare b18.2.1 | 3200 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/2-13 x 3 | 1/2-13 x 3 square bolts plain b18.2.1 | 244 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 3/4-10 x 3 | 3/4-10 x 3 square bolts plain b18.2.1 | 105 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 5/8-11 x 3 | 5/8-11 x 3 square bolts plain b18.2.1 | 11 |
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| B & K FAST | PA | Square Head Bolt | Grade 5 | Plain | 7/8-9 x 3 | 7/8-9 x 3 square bolts gr 5 plain b18.2.1 | 25 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 7/8-9 x 3 | 7/8-9 x 3 square bolts plain b18.2.1 | 314 |
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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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| OSSCO | RI | Square Head Bolt | Grade 5 | Plain | 3/4-10 x 3 | 3/4-10x3 square hd mach bolt grade 5 b18.2.1 | 4 |
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| THRDFAST | FL | Square Head Bolt | Steel | Galvanized | 3/4-10 x 3 | square hd bolt hdg b18.2.1 | 20 |
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| THRDFAST | FL | Square Head Bolt | Steel | Plain | 5/8-11 x 3 | square hd bolt b18.2.1 | 3 |
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| THRDFAST | OK | Square Head Bolt | Steel | Galvanized | 3/4-10 x 3 | square hd bolt hdg b18.2.1 | 60 |
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| THRDFAST | OK | Square Head Bolt | Steel | Galvanized | 7/8-9 x 3 | square hd bolt hdg b18.2.1 | 40 |
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| THRDFAST | OK | Square Head Bolt | Steel | Galvanized | 7/8-9 x 3 | square hd bolt rt2.25 hdg b18.2.1 | 20 |
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| THRDFAST | OK | Square Head Bolt | Steel | Galvanized | 5/8-11 x 3 | square hd bolt hdg full thread b18.2.1 | 7 |
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| THRDFAST | AL | Square Head Bolt | Grade 5 | Galvanized | 3/4-10 x 3 | gr5 square hd bolt hdg b18.2.1 | 2 |
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| THRDFAST | AL | Square Head Bolt | Steel | Galvanized | 5/8-11 x 3 | square hd bolt hdg b18.2.1 | 5 |
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| KBS | TN | Square Head Bolt | Grade 8 | Plain | 5/8-11 x 3 | 5/8-11 x 3 square!machbolt gr-8 b18.2.1 | 156 |
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| THRDFAST | MS | Square Head Bolt | Steel | Plain | 3/8-16 x 3 | square hd bolt b18.2.1 | 50 |
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| THRDFAST | MS | Square Head Bolt | Steel | Galvanized | 3/4-10 x 3 | square hd bolt hdg b18.2.1 | 8 |
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| THRDFAST | MS | Square Head Bolt | Steel | Plain | 5/8-11 x 3 | square hd bolt b18.2.1 | 15 |
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| THRDFAST | OK | Square Head Bolt | Steel | Plain | 5/8-11 x 3 | square hd bolt b18.2.1 | 1,641 |
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| All Size | TX | Square Head Bolt | Grade A | Plain | 5/8-11 x 3 | 5/8-11 x 3 a307 square head bolt plain b18.2.1 | 40 |
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