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12 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 .
57 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 | |
| Jackson | MS | Square Head Bolt | Grade 5 | Plain | 1-8 x 12 square head grade 5 plain | 3 |
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| Jackson | MS | Square Head Bolt | Grade 8 | Plain | 1 1/4 x 12 square head bolt gr. 8 plain | 4 |
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| ASMC | IL | Square Head Bolt | Grade A | Plain | 3/4-10 x 12 | (pt) coarse a307 gra square hd m/b low carb | 7 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 12 | bolt square machine | 15 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 5/8-11 x 12 | bolt square machine | 8 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 3/4-10 x 12 | bolt square machine | 13 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1 1/8-7 x 12 | bolt square machine | 2 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1 1/2-6 x 12 | bolt square machine | 3 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1 3/4-5 x 12 | bolt square machine | 3 |
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| Liberty | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 12 | square m/b machine bolt | 50 |
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| Liberty | IL | Square Head Bolt | Steel | Plain | 7/8-9 x 12 | square hd mach bolt | 10 |
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| XL Screw | GA | Square Head Bolt | Steel | Plain | 3/4-10 x 12 | square m/b std thrd fsb astm a307 | 25 |
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| XL Screw | GA | Square Head Bolt | Steel | Plain | 1-8 x 12 | square m/b std thrd fsb astm a307 | 15 |
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| MidStates | MI | Square Head Bolt | Grade 5 | Plain | 1 1/4-7 x 12 | in square hd bolt | 4 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 12 | in square hd bolt | 1 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 3/8-16 x 12 | bolt & c/s square boltsquare b18.2.1 | 500 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 5/8-11 x 12 | bolt & c/s square boltsquare b18.2.1 | 700 |
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| BIG BOLT | IL | Square Head Bolt | Grade 8 | Plain | 5/8-11 x 12 | bolt & c/s square boltsquare b18.2.1 | 1000 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 1/2-13 x 12 | bolt & c/s square boltsquare b18.2.1 | 500 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 1 3/8-12 x 12 | bolt & c/s square boltb18.2.1 | 200 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 1 1/8-12 x 12 | bolt & c/s square boltb18.2.1 | 200 |
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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 | Grade 8 | Plain | 1-8 x 12 | bolt & c/s square boltsquare b18.2.1 | 200 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 1 1/4-12 x 12 | bolt & c/s square boltb18.2.1 | 841 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 3/4-16 x 12 | bolt & c/s square boltb18.2.1 | 733 |
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| BIG BOLT | IL | Square Head Bolt | Grade 8 | Plain | 1 3/8-6 x 12 | bolt & c/s square boltsquare b18.2.1 | 150 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 7/8-9 x 12 | bolt & c/s square boltsquare b18.2.1 | 543 |
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| BIG BOLT | IL | Square Head Bolt | Grade 8 | Plain | 3/4-10 x 12 | bolt & c/s square boltsquare b18.2.1 | 1000 |
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| BIG BOLT | IL | Square Head Bolt | Grade 8 | Plain | 1/2-13 x 12 | bolt & c/s square boltsquare b18.2.1 | 500 |
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| BIG BOLT | IL | Square Head Bolt | Grade 8 | Plain | 1 1/2-6 x 12 | bolt & c/s square boltsquare b18.2.1 | 250 |
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| BIG BOLT | IL | Square Head Bolt | Grade 5 | Plain | 1 1/2-6 x 12 | bolt & c/s square boltsquare b18.2.1 | 163 |
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| BIG BOLT | IL | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-18 x 12 | bolt & c/s square bolt300 (a1 a2 18-8 304 310 etc.)b18.2.1 | 300 |
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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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| QFC | TX | Square Head Bolt | Grade A | Galvanized | 3/4-10 x 12 | 3/4-10x12 sq. head bolt a307 hdg b18.2.1 | 22 |
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| Cascade | OR | Square Head Bolt | Steel | Plain | 7/8-9 x 12 | square m/b b18.2.1 | 9 |
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| Kanebridge | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 12 | 1/2-13x12 square machine bolt plain | 1.250 |
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| Lippin | CA | Square Head Bolt | Steel | Plain | 3/4-10 x 12 | square head bolt plain | 20 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 1 1/4 x 12 | nc square bolt gr. 2 9 1/2 threads | 7 |
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| THRDFAST | FL | Square Head Bolt | Steel | Galvanized | 3/4-10 x 12 | square hd bolt hdg b18.2.1 | 1 |
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| THRDFAST | AL | Square Head Bolt | Steel | Galvanized | 5/8-11 x 12 | square hd bolt rt6 hdg b18.2.1 | stock |
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| THRDFAST | AL | Square Head Bolt | Steel | Galvanized | 1/2-13 x 12 | square hd bolt hdg b18.2.1 | 16 |
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| THRDFAST | AL | Square Head Bolt | Steel | Galvanized | 1-8 x 12 | square hd bolt rt6 hdg b18.2.1 | stock |
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| KBS | TN | Square Head Bolt | Grade 8 | Plain | 1-8 x 12 | 1-8 x 12 square mach bolt gr-8 b18.2.1 | 26 |
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| KBS | TN | Square Head Bolt | Grade 8 | Plain | 1 1/4-7 x 12 | 1-1/4-7 x 12 square!machbolt gr-8 b18.2.1 | 10 |
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| KBS | TN | Square Head Bolt | Grade 8 | Plain | 1 1/2-6 x 12 | 1-1/2-6 x 12 square mach bolt gr-8 b18.2.1 | 25 |
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| KBS | TN | Square Head Bolt | Steel | Plain | 1/2-13 x 12 | 1/2-13 x 12 square hd mach.bolt b18.2.1 | 4 |
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| KBS | TN | Square Head Bolt | Grade 8 | Plain | 7/8-9 x 12 | 7/8-9 x 12 square!machbolt gr-8 b18.2.1 | 13 |
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| FMP | MA | Square Head Bolt | Steel | Plain | 3/4-10 x 12 | square bolt | 32 |
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| Valley Nu | WA | Square Head Bolt | Steel | Plain | 1-8 x 12 | nc square bolt pl | 6 |
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| Valley Nu | WA | Square Head Bolt | Steel | Plain | 3/4-10 x 12 | nc square hd bolt | 13 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1 3/4-5 x 12 | square m/b | 10 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 12 | square m/b | 450 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1 1/8-7 x 12 | square | 20 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1 1/2-6 x 12 | square m/b | 12 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 3/4-10 x 12 | square m/b | 135 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1-8 x 12 | square m/b | 50 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1 1/8-7 x 12 | square m/b | 20 |
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