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Square Head Bolts, Grade 2
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 .
> 200 matches, . Showing 200, (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 | |
| Hayes | CA | Square Head Bolt | Grade 2 | Galvanized | 1-8 x 28 | 1-8x28 square head bolt gr.2 hdg | 1 |
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| Hayes | CA | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 2 1/4 | 1/2-13 x 2 1/4 square hd bolt gr.2 pln with sq nut | 18 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Galvanized | 1/2-13 x 1 1/2 | square bolt hdg | 112 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 1 1/4 | square bolt gr. 2 | 400 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 3 1/2 | square bolt gr. 2 | 2 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 1 1/8 x 4 | nc square bolt gr. 2 | 78 |
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| 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 2 | Zinc/Clear | 5/16 x 1 1/2 | nc square bolt gr. 2 | 7 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Zinc/Clear | 3/8 x 1 1/2 | nc square bolt gr. 2 | 2 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 8 | 1/2-13x8 square head bolt gr. 2 plain | 100 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 1 8 x 3 | 1 8 x 3 nc square head bolt gr. 2 plain | 52 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Zinc/Clear | 3/8-16 x 3 | 3/8-16 x 3 square head bolt gr. 2 zinc plated | 503 |
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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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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 1 1/4 x 16 | nc square bolt gr. 2 | 1 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 9 | square bolt gr. 2 | 7 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 10 | square bolt gr. 2 | 10 |
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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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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 4 | square bolt gr. 2 | 43 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 3 | nc square bolt gr. 2 | 153 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Galvanized | 3/8-16 x 2 1/2 | square bolt hdg | 295 |
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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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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 9 | nc square bolt gr. 2 | 15 |
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| Coburn Myers Fastening Systems | PA | Square Head Bolt | Grade 2 | Plain | square head bolt grade 2 plain | 108 |
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| Coburn Myers Fastening Systems | PA | Square Head Bolt | Grade 2 | Plain | square head bolt grade 2 plain | 93 |
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| Coburn Myers Fastening Systems | PA | Square Head Bolt | Grade 2 | Plain | square head bolt grade 2 plain | 71 |
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| Coburn Myers Fastening Systems | PA | Square Head Bolt | Grade 2 | Plain | square head bolt grade 2 plain | 9 |
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| Coburn Myers Fastening Systems | PA | Square Head Bolt | Grade 2 | Plain | square head bolt grade 2 plain | 6 |
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| Coburn Myers Fastening Systems | PA | Square Head Bolt | Grade 2 | Plain | square head bolt grade 2 plain | 7 |
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| CIF | IL | Square Head Bolt | Grade 2 | Plain | 1-8 x 3 1/2 | 1-8 x 3 1/2 square head machine bolt grade 2 plain | 58 |
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| CIF | IL | Square Head Bolt | Grade 2 | Zinc/Yellow | 1/2-13 x 3 | 1/2-13 x 3 square head machine bolt grade 2 zinc yellow trivalent | 45 |
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| CNB | IL | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 3 | 1/2-13 x 3 square head machine bolt gr.2 plain | 179 |
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| CNB | IL | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 5 | 1/2-13 x 5 square head bolt gr.2 plain | 147 |
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| CNB | IL | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 4 | 1/2-13 x 4 square head m/m gr. 2 pln | 100 |
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| CNB | IL | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 5 1/2 | 5/8-11 x 5 1/2 square hd mb gr.2 plain | 20 |
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| CNB | IL | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 3 3/4 | 3/4-10 x 3 3/4 square head machine bolt gr.2 plain | 23 |
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| CNB | IL | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 5 | 3/4-10 x 5 square head machine bolt grade 2 plain | 40 |
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| CNB | IL | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 9 | 3/4-10 x 9 square head machine bolt gr.2 plain | 9 |
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| CNB | IL | Square Head Bolt | Grade 2 | Plain | 1-8 x 8 | 1-8 x 8 square head machine bolt grade 2 plain per print b10345 | 3 |
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| CNB | IL | Square Head Bolt | Grade 2 | Plain | 1/4-7 x 13 | 1 1/4-7 x 13 square head bolt grade 2 plain per print b1023 rev. c | 5 |
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| CNB | IL | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 1 1/2 | 1/4-20 x 1 1/2 square head machine bolt grade 2 plain | 400 |
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| CNB | IL | Square Head Bolt | Grade 2 | Zinc/Clear | 1/4-20 x 1 1/2 | 1/4-20 x 1 1/2 square head machine bolt grade 2 zinc plated | 200 |
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| A-Plus Co | OR | Square Head Bolt | Grade 2 | Galvanized | 5/8-11 x 3 | 5/8-11 x 3 sq hd bolt gr2 hdg | 101 |
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| OneMonroe | NC | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3-1/2 sq hd gr2 pln. bolt | 25 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 7/8-9 x 5 | 7/8-9 x 5 | square head bolt grade 2 | 7 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 6 | 1/2-13 x 6 | square head bolt grade 2 | 39 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 1-8 x 16 | 1-8 x 16 | square head bolt grade 2 | 23 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 2 | square bolt | 48 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 1 1/2 | square bolt | 80 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Zinc/Clear | 1/2-13 x 1 | square bolt | 5277 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 3 1/2 | square bolt | 4084 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 3/4 | square bolt | 199 |
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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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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 1 1/4 | square bolt | 319 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 3/4 | square bolt | 80 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 1 1/4 | square bolt | 94 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 1 3/4 | square bolt | 346 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 3 1/2 | square bolt | 69 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 1 3/4 | square bolt | 1 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 3 | square bolt | 6 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 3 1/2 | square bolt | 28 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 4 | square bolt | 24 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 1 1/2 | square bolt | 12 |
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| Alma Bolt | MI | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 1 3/4 | square bolt | 33 |
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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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| Longhorn | TX | Square Head Bolt | Grade 2 | Galvanized | 5/16-18 x 1 3/4 | 5/16-18 x 1-3/4 sq hd bolt gr 2 gal | 486 |
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| Longhorn | TX | Square Head Bolt | Grade 2 | Zinc/Clear | 1/4-20 x 4 | 1/4-20 x 4 square hd bolt gr 2 zinc | 100 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 4 1/2 | square bolt gr. 2 | 1 |
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| Jackson | MS | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 3 | square bolt gr. 2 | 73 |
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| MFS | KS | Square Head Bolt | Grade 2 | Zinc/Yellow | 3/8-16 x 1 | square | 25 |
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| MFS | KS | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 11/2 | square | 40 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 1 1/2 | square hd bolt | 69 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 12 1/2 | square hd bolt | 1 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 3 3/4 | square hd bolt | 49 |
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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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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 5 1/2 | 3/8-16x5-1/2 square hd bolt | 132 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 1 1/4-7 x 7 | square hd bolt | 5 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Zinc/Clear | 5/8-11 x 1 3/4 | square hd bolt znc | 4 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 10 | in square hd bolt | 75 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Zinc/Clear | 1/4-20 x 4 1/2 | square hd bolt znc | 176 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 2 1/4 | 1/4-20 x 2 1/4 square hd bolt gr 2 pln | 380 |
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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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| 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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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 8 | 1/4-20 x 8in square hd bolt gr 2 pln | 154 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 8 | 1/2-13 x 8in square hd bolt gr 2 pln | 56 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 10 | 3/8-16 x 10in square hd bolt gr 2 pln | 49 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 1-8 x 7 1/2 | 1-8 x 7 1/2 square hd bolt gr 2 pln | 4 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 2 3/4 | 3/4-10 x 2 3/4 square hd bolt gr 2 pln | 5 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 1 1/8-7 x 13 | 1 1/8-7 x 13 square hd bolt gr 2 pln | 1 |
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| MidStates | MI | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 7 | square hd bolt | 2 |
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| WDMB | IA | Square Head Bolt | Grade 2 | Zinc/Clear | blt-sqr-gr2-(zn)-5/16_18x5/8-drw (W0M0) (W0M0) (W0M0) | 2,738 |
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| WDMB | IA | Square Head Bolt | Grade 2 | Plain | 7/16-14 x 2 | bolt sqr grade 2 (zf) 7/16-14x2 (W0S0) | 16,079 |
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| IPC | VA | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 2 1/4 | 5/8-11x2 1/4 square hd mach bolt grade 2 | 371 |
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| IPC | VA | Square Head Bolt | Grade 2 | Zinc/Clear | 3/8-16 x 2 1/4 | 3/8-16x2 1/4 square hd mach bolt grade 2 cr3 zinc-rohs | 350 |
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| IPC | VA | Square Head Bolt | Grade 2 | Zinc/Clear | 3/8-16 x 2 1/2 | 3/8-16x2 1/2 square hd mach bolt grade 2 cr3 zinc-rohs | 4,000 |
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| IPC | VA | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 2 1/2 | 1/2-13x2 1/2 square hd mach bolt grade 2 plain | 205 |
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| IPC | VA | Square Head Bolt | Grade 2 | Zinc/Clear | 1/2-13 x 2 1/4 | 1/2-13x2 1/4 square hd mach bolt grade 2 cr3 zinc-rohs | 330 |
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| IPC | VA | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 2 3/4 | 5/8-11x2 3/4 square hd mach bolt grade 2 | 53 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 7/8-9 x 4 1/2 | 935 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 1-8 x 5 | 90 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 7/8-9 x 5 | 108 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 7/8-9 x 4 | 819 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 7/8-9 x 7 | 40 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 8 | 55 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 1-8 x 7 1/2 | 105 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 1-14 x 6 1/2 | 32 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 7/8-9 x 3 1/4 | 308 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 7 1/2 | 188 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 3 1/4 | 175 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 2 3/4 | 1275 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 3 1/2 | 1600 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 4 | 650 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Zinc/Clear | 1/2-13 x 4 1/2 | 450 |
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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 | Plain | 5/8-11 x 3 1/4 | 575 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Zinc/Clear | 7/16-14 x 1 | 1025 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Zinc/Clear | 3/4-10 x 2 | 575 |
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| ISSCO | MO | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 1 1/2 | 533 |
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| Delta Secondary | IL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 5/8 | 41500 |
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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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| Delta Secondary | IL | Square Head Bolt | Grade 2 | Zinc/Clear | 7/8-9 x 13 1/2 |
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| B & K FAST | PA | Square Head Bolt | Grade 2 | Plain | 3/4-10 x 1 3/4 | 3/4-10 x 1 3/4 square bolts gr 2 plain b18.2.1 | 10 |
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| Arden | WI | Square Head Bolt | Grade 2 | Plain | 1213 x 6 | 1213x6 square hd gr2 pln | inquire |
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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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| ScrewsInc | OH | Square Head Bolt | Grade 2 | Plain | 1/2-13 x 1 | 600 |
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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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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 1 1/4-7 x 7 | square hd bolt | 11 |
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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 | 1/4-20 x 1 1/4 | square hd bolt | - |
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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 1 3/4 | square hd bolt | 69 |
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| SRF | AL | Square Head Bolt | Grade 2 | Zinc/Clear | 1/4-20 x 2 | square hd bolt | - |
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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 3 | square hd bolt | 9 |
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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 4 | square hd bolt | 5 |
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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 1/4-20 x 5 | square hd bolt | 25 |
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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 | Plain | 5/16-18 x 3 1/2 | square hd bolt | - |
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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 4 | square hd bolt | - |
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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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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 5/16-18 x 3/4 | square hd bolt | 66 |
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| SRF | AL | Square Head Bolt | Grade 2 | Galvanized | 3/8-16 x 2 1/2 | square hd bolt | 1,434 |
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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 3 1/2 | square hd bolt | 38 |
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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 4 1/4 | square hd bolt | 398 |
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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 5 | square hd bolt | 25 |
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| SRF | AL | Square Head Bolt | Grade 2 | Zinc/Clear | 3/8-16 x 5 | square hd bolt | 14 |
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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 6 | square hd bolt | 25 |
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| SRF | AL | Square Head Bolt | Grade 2 | Plain | 3/8-16 x 3/4 | square hd bolt | - |
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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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| WSB | KY | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 1 1/2 | blt fullthread sqr gr2 (pl) 5/8-11x1 1/2 b18.2.1 | 1,283 |
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| GUIDON | NJ | Square Head Bolt | Grade 2 | Black Oxide | 3/8-16 x 3 | A307A | 450 |
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| Revcar | VA | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 2 | square hd m/b f/t | 28,676 |
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| FACCA | Ont | Square Head Bolt | Grade 2 | Plain | 5/8-11 x 2 1/2 | machine bolt square head (no nut) 5/8-11 unc x 2 1/2 long grade 2 low carbon steel plain ansi b18.2.1 b18.2.1 | 11,760 |
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