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1/4 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 .
28 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 | |
| Ababa | CA | Square Head Bolt | Steel | Plain | 1/4-20 x 1 1/2 | 1/4-20 x 1 1/2 sq hd blt steel pln b18.2.1 | 200 |
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| Ababa | CA | Square Head Bolt | Steel | Zinc/Clear | 1/4-20 x 2 | 1/4-20 x 2 sq hd blt full thrd steel znc b18.2.1 | 1390 |
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| ASMC | IL | Square Head Bolt | Grade A | Galvanized | 1/4-20 x 1 1/4 | a307 gra square hd m/b low carb hdg b18.2.1 | 1,325 |
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| ASMC | IL | Square Head Bolt | Grade A | Galvanized | 1/4-20 x 2 1/2 | a307 gra square hd m/b low carb hdg b18.2.1 | 1,200 |
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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 | Galvanized | 1/4-20 x 3 1/2 | a307 gra square hd m/b low carb hdg b18.2.1 | 350 |
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| ASMC | IL | Square Head Bolt | Grade A | Galvanized | 1/4-20 x 4 | a307 gra square hd m/b low carb hdg b18.2.1 | 500 |
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| ASMC | IL | Square Head Bolt | Grade A | Plain | 1/4-20 x 2 1/2 | 1/4-20x2 1/2 (pt) coarse a307 gra square hd machine bolt low carb pln b18.2.1 | 200 |
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| Ababa | CA | Square Head Bolt | Steel | Plain | 1/4-20 x 2 | 1/4-20 x 2 sq hd blt full thrd steel pln b18.2.1 | 2190 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 1/4-20 x 5 | bolt & c/s square boltsquare b18.2.1 | 6000 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 1/4-20 x 2 | bolt & c/s square boltsquare b18.2.1 | 6000 |
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| BIG BOLT | IL | Square Head Bolt | Steel | Plain | 1/4-20 x 7/16 | bolt & c/s square boltsquare b18.2.1 | 1000 |
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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 | Steel | Plain | 1/4-20 x 10 | bolt & c/s square boltsquare b18.2.1 | 1000 |
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| BIG BOLT | IL | Square Head Bolt | Steel | Plain | 1/4-20 x 8 | bolt & c/s square boltsquare b18.2.1 | 1000 |
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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 | Steel | Plain | 1/4-20 x 16 | bolt & c/s square boltsquare b18.2.1 | 1000 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 1/4-20 x 4 | bolt & c/s square boltsquare b18.2.1 | 6000 |
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| BIG BOLT | IL | Square Head Bolt | Steel | Plain | 1/4-20 x 14 | bolt & c/s square boltsquare b18.2.1 | 1000 |
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| BIG BOLT | IL | Square Head Bolt | Steel | Plain | 1/4-20 x 12 | bolt & c/s square boltsquare b18.2.1 | 1000 |
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| JET FITTING | CA | Square Head Bolt | Grade A | Plain | 1/4-20 x 4 | 1/4-20x4 a307 gr a square hd bolt pln 747023 b18.2.1 | 589 |
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| QFC | TX | Square Head Bolt | Grade A36 | Galvanized | 1/4 x 1 3/4 x 1 3/4 | 1/4 x 1 3/4 x 1 3/4 sq. ring fill plate a36 hdg (for 5/8 bolt) AS36849 b18.2.1 | 4 |
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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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| B & K FAST | PA | Square Head Bolt | Steel | Galvanized | 1/4-20 x 1 1/2 | 1/4-20 x 1 1/2 galv square bolts b18.2.1 | 53 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/4-20 x 5 1/2 | 1/4-20 x 5 1/2 square bolts plain b18.2.1 | 20 |
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| OSSCO | RI | Square Head Bolt | Steel | Galvanized | 1/4-20 x 4 | 1/4-20x4 square hd mach bolt h.d.g. b18.2.1 | 8 |
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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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