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Square Head Bolts, Plain
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 | |
| YANKEE | NH | Square Head Bolt | Steel | Plain | 5/16-18 x 3 | 5/16-18 x 3 square hd bolt | 136 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 5/16-18 x 2 | 5/16-18 x 2 square hd bolt | 192 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 5/16-18 x 1 3/4 | 5/16-18 x 1-3/4 square head bolt | 160 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 3/8-16 x 4 | 3/8-16 x 4 square hd bolt | 334 |
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| YANKEE | NH | Square Head Bolt | Grade A | Plain | 1/2-13 x 1 1/2 | 1/2-13 x 1-1/2 square head bolt astm a307 | 106 |
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| YANKEE | NH | Square Head Bolt | Grade 5 | Plain | 1/2-13 x 1 1/2 | 1/2-13 x 1-1/2 square head bolt grade 5 plain finish | 53 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 1/2-13 x 2 | 1/2-13 x 2 square hd bolt | 2 |
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| YANKEE | NH | Square Head Bolt | Grade A | Plain | 1/2-13 x 2 1/2 | 1/2-13 x 2-1/2 square head bolt astm a307 | 292 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 square hd bolt | 120 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 1/2-13 x 5 | 1/2-13 x 5 square hd bolt | 11 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 5/8-11 x 2 | 5/8-11 x 2 square hd bolt | 19 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 5/8-11 x 2 1/2 | 5/8-11 x 2 1/2 square hd bolt | 7 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 5/8-11 x 4 | 5/8-11 x 4 square hd bolt | 20 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 3/4-10 x 2 1/4 | 3/4-10 x 2 1/4 square hd bolt | 70 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 3/4-10 x 3 1/2 | 3/4-10 x 3 1/2 square hd bolt | 17 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 3/4-10 x 4 | 3/4-10 x 4 square hd bolt | 35 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 3/4-10 x 4 1/2 | 3/4-10 x 4 1/2 square hd bolt | 2 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 3/4-10 x 6 | 3/4-10 x 6 square hd bolt | 26 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 7/8-9 x 4 | 7/8-9 x 4 square hd bolt | 17 |
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| YANKEE | NH | Square Head Bolt | Steel | Plain | 1/2-13 x 4 | square bolt finish | 163 |
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| Weaver | WA | Square Head Bolt | Grade 5 | Plain | 5/8-11 x 2 3/4 gr5 square hd bolt plain | 13 |
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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 5 | Plain | 1/2-13 x 3 1/2 | square | 2 |
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| Jackson | MS | Square Head Bolt | Grade 5 | Plain | 1/2-13 x 4 | nc square bolt gr. 5 fastenel # 0168684 or equal | 143 |
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| Jackson | MS | Square Head Bolt | Grade 5 | Plain | 5/8-11 x 4 1/2 | nc square bolt gr. 5 f/t | 3 |
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| Jackson | MS | Square Head Bolt | Grade 5 | Plain | 1-8 x 3 1/2 | square | 25 |
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| Jackson | MS | Square Head Bolt | Grade 8 | Plain | 5/8-11 x 2 1/2 | square bolt gr. 8 | 1 |
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| Jackson | MS | Square Head Bolt | Grade 8 | Plain | 3/4-10 x 3 1/2 | square bolt gr. 8 | 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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| METRO IND | OH | Square Head Bolt | Steel | Plain | M14 x 125 | m14 x 125 sq. leveling bolt plate 25mm thick steel | 32 |
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| Jackson | MS | Square Head Bolt | Grade 5 | Plain | 1-8 x 11 square head grade 5 plain | 3 |
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| Jackson | MS | Square Head Bolt | Grade 5 | Plain | 1-8 x 12 square head grade 5 plain | 2 |
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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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| Weaver | WA | Square Head Bolt | Grade 5 | Plain | 5/8-11 x 3 1/2 | 5/8-11x3 1/2 gr5 square hd bolt plain | 14 |
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| Weaver | WA | Square Head Bolt | Grade 5 | Plain | 7/8-9 x 6 | 7/8-9x6 gr5 square hd bolt plain | 12 |
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| Weaver | WA | Square Head Bolt | Grade 5 | Plain | 1/2-13 x 3 3/4 | 1/2-13 x 3 3/4 gr5 square hd bolt plain | 25 |
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| METRO IND | OH | Square Head Bolt | Grade 5 | Plain | 5/8-11 x 1 1/2 | square hd bolt | 25 |
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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 8 | Plain | 5/8-11 x 3 | 5/8-11 x 3 square head bolt gr. 8 plain | 19 |
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| METRO IND | OH | Square Head Bolt | Steel | Plain | 1/2-13 x 3 1/2 | square hd bolt | 8 |
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| METRO IND | OH | Square Head Bolt | Steel | Plain | 3/4-10 x 5 | square hd bolt | 4 |
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| METRO IND | OH | Square Head Bolt | Steel | Plain | 3/4-10 x 5 1/2 | square hd bolt | 30 |
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| METRO IND | OH | Square Head Bolt | Steel | Plain | 5/8-11 x 2 1/4 | square hd bolt | 17 |
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| METRO IND | OH | Square Head Bolt | Grade 5 | Plain | 1/2-13 x 3 1/2 | square hd bolt | 25 |
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| Jackson | MS | Square Head Bolt | Grade 5 | Plain | 1-8 x 13 | square | 2 |
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| Jackson | MS | Square Head Bolt | Grade 8 | Plain | 1 1/4 x 6 | square bolt gr. 8 | 20 |
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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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| Set Screw | IL | Square Head Bolt | Grade 8 | Plain | 1 1/8-7 x 15.0 | 1 1/8-7x15.0 grade 8 square bolt | inquire |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 6 1/2 | 1/2-13x6 1/2 bolt square machine plain | 80 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1-8 x 5 | bolt square machine | 30 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1/4-20 x 2 1/2 | bolt square machine black | 350 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1/4-20 x 3 1/4 | bolt square machine | 200 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 1 3/4 | bolt square machine | 600 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 5/8-11 x 8 1/2 | bolt square machine | 50 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 5/8-11 x 1 1/4 | bolt square machine | 540 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 7/8-9 x 1 1/2 | bolt square machine | 105 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 7/8-9 x 16 | bolt square machine | 2 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 7/8-9 x 1 3/4 | bolt square machine | 65 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 7/8-9 x 18 | bolt square machine | 4 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 7/8-9 x 3 1/4 | bolt square machine | 93 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 7/8-9 x 4 1/4 | bolt square machine | 25 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1-8 x 15 | bolt square machine | 15 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1-8 x 8 | bolt square machine | 28 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1/4-20 x 3 | bolt square machine | 150 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 2 1/2 | bolt plow #4 square | 50 |
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| ACCURATE | IL | Square Head Bolt | Steel | Plain | 1/2-13 x 1 1/2 | bolt square machine | 40 |
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| OneMonroe | NC | Square Head Bolt | Grade A | Plain | 1/2-13 x 1 1/2 | 1/2-13 x 1 1/2 a307a plain finish square head bolt | 124 |
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| OneMonroe | NC | Square Head Bolt | Grade A | Plain | 5/8-11 x 3 1/2 | 5/8-11 x 3 1/2 a307a plain finish square head bolt | 74 |
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| OneMonroe | NC | Square Head Bolt | Grade A | Plain | 5/8-11 x 4 | 5/8-11 x 4 a307a plain finish square head bolt | 103 |
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| OneMonroe | NC | Square Head Bolt | Grade A | Plain | 3/4-10 x 4 | 3/4-10 x 4 a307a plain finish square head bolt | 65 |
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| OneMonroe | NC | Square Head Bolt | Grade A | Plain | 7/8-9 x 5 | 7/8-9 x 5 a307a plain finish square head bolt | 20 |
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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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| OneMonroe | NC | Square Head Bolt | Steel | Plain | #6 | 6 square corner flush bolt | 1 |
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| OneMonroe | NC | Square Head Bolt | Steel | Plain | 5/16-18 x 3/4 | 5/16-18 x 3/4 sq hd c/s-pln | 40 |
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| OneMonroe | NC | Square Head Bolt | Steel | Plain | 1/2-13 x 4 | 1/2-13 x 4 sq hd c/s-pln | 119 |
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| OneMonroe | NC | Square Head Bolt | Steel | Plain | 5/8-11 x 12 | 5/8-11 x 12 sq hd c/s-plain | 36 |
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| OneMonroe | NC | Square Head Bolt | Steel | Plain | 5/8-11 x 12 | 5/8-11 x 12 sq hd c/s-hdg | 68 |
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| OneMonroe | NC | Square Head Bolt | Grade 5 | Plain | 3/4-10 x 4 | 3/4-10 x 4 sq hd c/s-gr 5-plain | 34 |
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| OneMonroe | NC | Square Head Bolt | Steel | Plain | 1-8 x 8 | 1-8 x 8 square t-bolt w/4 thread | 171 |
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| OneMonroe | NC | Square Head Bolt | Steel | Plain | 3/16 | packing graphited synthetic 3/16 square c/s (47 feet per pound) | 1.1 |
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| OneMonroe | MN | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 3/4 | 5/16-18 x 1-3/4 sq hd dog pt-s.s. | 50 |
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| OneMonroe | MN | Square Head Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 3/4 | 5/16-18 x 1-3/4 sq hd dog pt-s.s. | 50 |
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| Jackson | MS | Square Head Bolt | Grade 8 | Plain | 5/8-11 x 4 1/2 | 5/8-11x4-1/2 square bolt gr. 8 | 1 |
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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 | Plain | 5/6-18 x 5 1/2 | square bolt | 250 |
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| American | NY | Square Head Bolt | Steel | Plain | 1/4-20 x 5/8 | square m/b | 100 |
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| American | NY | Square Head Bolt | Steel | Plain | 5/16-18 x 2 1/2 | square m/b | 50 |
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| American | NY | Square Head Bolt | Steel | Plain | 5/16-18 x 5 | square bolt | 700 |
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| American | NY | Square Head Bolt | Steel | Plain | 3/8-16 x 4 1/2 | square m/b | 50 |
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| American | NY | Square Head Bolt | Steel | Plain | 1/4-20 x 1 1/4 | square m/b | 10000 |
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| American | NY | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/2 | square m/b | 100 |
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| American | NY | Square Head Bolt | Steel | Plain | 5/16-18 x 1 3/4 | square m/b f/t black | 60 |
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| American | NY | Square Head Bolt | Steel | Plain | 3/8-16 x 3 1/2 | square bolt | 150 |
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| American | NY | Square Head Bolt | Steel | Plain | 1/2-13 x 3 1/4 | square m/b | 61 |
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| American | NY | Square Head Bolt | Steel | Plain | 1/2-13 x 4 | square m/b | 438 |
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| American | NY | Square Head Bolt | Steel | Plain | 1/2-13 x 19 | square m/b | 35 |
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| American | NY | Square Head Bolt | Steel | Plain | 1/2-13 x 25 | square m/b | 7 |
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| American | NY | Square Head Bolt | Steel | Plain | 1/4-20 x 4 | square m/b | 5900 |
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| American | NY | Square Head Bolt | Steel | Plain | 5/8-11 x 4 1/2 | square m/b | 300 |
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| American | NY | Square Head Bolt | Steel | Plain | 5/8-11 x 9 | square m/b | 25 |
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| American | NY | Square Head Bolt | Grade 5 | Plain | 5/8-18 x 3 1/2 | square m/b | 300 |
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| American | NY | Square Head Bolt | Steel | Plain | 3/4-10 x 2 1/4 | square m/b | 500 |
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| Jackson | MS | Square Head Bolt | Grade 5 | Plain | 3/4-10 x 4 1/2 | square | 13 |
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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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| Ababa | CA | Square Head Bolt | Steel | Plain | 3/8-16 x 5 1/2 | 3/8-16 x 5-1/2 sq hd bolt steel pln b18.2.1 | 189 |
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| Ababa | CA | Square Head Bolt | Steel | Plain | 1/2-13 x 4 | 1/2-13 x 4 sq hd bolt steel pln b18.2.1 | 1 |
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| Ababa | CA | Square Head Bolt | Grade 8 | Plain | 3/4-10 x 2 1/2 | 3/4-10 x 2-1/2 square head bolt gr.8 plain b18.2.1 | 20 |
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| 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 | Plain | 3/8-16 x 2 1/2 | 3/8-16 x 2 1/2 sq hd bolt steel pln b18.2.1 | 1 |
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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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| YANKEE | NH | Square Head Bolt | Steel | Plain | 5/8-11 x 7 | 5/8-11 x 7 square hd bolt | 38 |
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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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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/2 square bolts plain b18.2.1 | 1126 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 3/8-16 x 1 1/4 | 3/8-16 x 1 1/4 square bolts plain b18.2.1 | 6 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 3/8-16 x 2 | 3/8-16 x 2 square bolts plain b18.2.1 | 215 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 3/8-16 x 7 1/2 | 3/8-16 x 7 1/2 square bolts plain b18.2.1 | 2 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/2-13 x 1 1/4 | 1/2-13 x 1 1/4 square bolts plain b18.2.1 | 2788 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/2-13 x 1 1/2 | 1/2-13 x 1 1/2 square bolts plain b18.2.1 | 323 |
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| B & K FAST | PA | Square Head Bolt | Grade 5 | Plain | 1/2-13 x 1 3/4 | 1/2-13 x 1 3/4 square bolts gr 5 plain b18.2.1 | 4 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/2-13 x 1 3/4 | 1/2-13 x 1 3/4 square bolts plain full thread b18.2.1 | 1 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/2-13 x 2 | 1/2-13 x 2 square bolts plain b18.2.1 | 197 |
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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 | 1/2-13 x 3 1/4 | 1/2-13 x 3 1/4 square bolts plain b18.2.1 | 495 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/2-13 x 3 1/2 | 1/2-13 x 3 1/2 square bolts plain b18.2.1 | 8 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/2-13 x 4 | 1/2-13 x 4 square bolts plain b18.2.1 | 708 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/2-13 x 6 | 1/2-13 x 6 square bolts plain b18.2.1 | 467 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/2-13 x 6 | 1/2-13 x 6 square bolts plain full thread b18.2.1 | 120 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 1/2-13 x 19 | 1/2-13 x 19 square bolts plain b18.2.1 | 38 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 5/8-11 x 1 1/4 | 5/8-11 x 1 1/4 square bolts plain b18.2.1 | 1852 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 7/8-9 x 3 1/2 | 7/8-9 x 3 1/2 square bolts plain b18.2.1 | 523 |
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| B & K FAST | PA | Square Head Bolt | Steel | Plain | 7/8-9 x 4 | 7/8-9 x 4 square bolts plain b18.2.1 | 1 |
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