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5/16-18 Hex Cap Screws
Hex Cap Screws are hex headed fasteners with external machine screw threads and differ from hex machine bolts by having a washer surface on the underside or bearing side of the head and a chamfered thread end. Hex cap screws have tighter dimensional tolerances than bolts. Metric hex cap screws are specified by various DIN, ISO and JIS standards, and US/Imperial hex cap screws are dimensionally specified by the ASME B18.2.1 specification.
168,354 Hex Head Cap Screw, showing 200, (click on any line for more information)
| Buy Hex Cap Screws from one of our FCH Network Members | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 3/4 | 5/16-18 x 1-3/4 hex cap screw gr 5 steel cr3 zinc he cap | 1,050 |
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| MESAFAST | CA | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 1/2 | hex c/s brass | 12.0 |
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| Liberty | IL | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 5/8 | c/s | 184 |
|
| Liberty | IL | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 3/4 | c/s 316 stainless | 84 |
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| Liberty | IL | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 7/8 | c/s 316 stainless | 645 |
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| Liberty | IL | Hex Head Cap Screw | Grade 5 | Cadmium/Yellow | 5/16-18 x 1 | ms90725-34 5/16-18 x 1 c/s cad | 820 |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 3/4 | 5/16-18 x 3/4 hex cap screw grade 5 zinc 1650/ctn-100/pkg | 10540 |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 | 5/16-18 x 1 hex cap screw grade 5 zinc 1400/ctn-100/pkg | 6034 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 1 | 5/16-18 x 1 hex cap screw grade 8 zinc yellow 1400/ctn-100/pkg | 761 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 1 1/2 | 5/16-18 x 1-1/2 hex cap screw grade 8 zinc yellow 1000/ctn-100/pkg | 1209 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 3 | 5/16-18 x 3 hex cap screw grade 5 zinc 500/ctn-100/pkg | 350 |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18 x 1-1/4 hex cap screw grade 5 zinc 1100/ctn-100/pkg | 1446 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 2 1/2 | 5/16-18 x 2-1/2 hex cap screw grade 5 zinc 600/ctn-100/pkg | 780 |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 3 | 5/16-18 x 3 hex cap screw grade 8 zinc yellow 500/ctn-100/pkg | 540 |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 2 | 5/16-18 x 2 hex cap screw grade 8 zinc yellow 800/ctn-100/pkg | 432 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 2 1/2 | 5/16-18 x 2-1/2 hex cap screw grade 8 zinc yellow 600/ctn-100/pkg | 432 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 1 3/4 | 5/16-18 x 1-3/4 hex cap screw grade 8 zinc yellow 850/ctn-100/pkg | 860 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 2 1/4 | 5/16-18 x 2-1/4 hex cap screw grade 5 zinc 700/ctn-100/pkg | 667 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 1/2 | 5/16-18 x 1-1/2 hex cap screw grade 5 zinc 1000/ctn-100/pkg | 524 |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 5/8 | 5/16-18 x 5/8 hex cap screw grade 5 zinc 1800/ctn-100/pkg | 336 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 4 | 5/16-18 x 4 hex cap screw grade 5 zinc 400/ctn-50/pkg | 375 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 5 | 5/16-18 x 5 hex cap screw grade 5 zinc 250/ctn-50/pkg | 172 |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 5 1/2 | 5/16-18 x 5-1/2 hex cap screw grade 5 zinc 250/ctn-50/pkg | 32 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 2 | 5/16-18 x 2 hex cap screw grade 5 zinc 800/ctn-100/pkg | 892 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 4 1/2 | 5/16-18 x 4-1/2 hex cap screw grade 5 zinc 300/ctn-50/pkg | 223 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 2 3/4 | 5/16-18 x 2-3/4 hex cap screw grade 5 zinc 550/ctn-100/pkg | 272 |
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| Mansco | MI | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 1 1/2 | 5/16-18x1-1/2 hex cap 100/box | 102 |
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| Mansco | MI | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/4 | hex cap 18-8 s/s 25/box | 50 |
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| SIS | AZ | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 3/4 | hex c/s 316 stainless () | 50 |
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| SIS | AZ | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 1/2 | hex c/s () | 200 |
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| SIS | AZ | Hex Head Cap Screw | Grade 2 | Zinc/Clear | 5/16-18 x 1 | c/s grade 2 () | 1700 |
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| SIS | AZ | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 1 | hex c/s 316 stainless () | 50 |
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| SIS | AZ | Hex Head Cap Screw | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | c/s clear () | 50 |
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| SIS | AZ | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/4 | c/s 18-8 304 () | 300 |
|
| SIS | AZ | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 1 1/4 | hex c/s 316 stainless () | 50 |
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| SIS | AZ | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 1 1/4 | c/s () | 75 |
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| SIS | AZ | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 1/2 | hex c/s 18-8 304 () | 75 |
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| SIS | AZ | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 2 | c/s () | 50 |
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| SIS | AZ | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 3 | c/s () | 75 |
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| SIS | AZ | Hex Head Cap Screw | Grade 2 | Zinc/Clear | 5/16-18 x 3 | c/s grade 2 () | 650 |
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| SIS | AZ | Hex Head Cap Screw | Grade 2 | Zinc/Clear | 5/16-18 x 2 1/2 | hex c/s grade 2 clear () | 1497 |
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| SIS | AZ | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 2 1/4 | hex c/s () | 10 |
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| SIS | AZ | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 3 1/2 | c/s () | 25 |
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| SIS | AZ | Hex Head Cap Screw | Grade 2 | Zinc/Clear | 5/16-18 x 5 | hex c/s grade 2 clr () | 49 |
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| SIS | AZ | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 3 1/4 | hex c/s () | 50 |
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| SIS | AZ | Hex Head Cap Screw | Grade 2 | Zinc/Clear | 5/16-18 x 4 | hex cap bolt grade 2 clr () | 500 |
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| SIS | AZ | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 1/2 | hex c/s 18-8 304 () | 100 |
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| SIS | AZ | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 5 | hex c/s () | 125 |
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| Brikksen | FL | Hex Head Cap Screw | Steel | Plain | 5/16-18 x 1 1/2 | 5/16-18 x 1-1/2 hex hd cs s/b b18.2.1 | 10400 |
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| Brikksen | FL | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | 5/16-18 x 3/4 hex head cs ss 50 per box f593c f-36box b18.2.1 | 176 |
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| Brikksen | FL | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 1 | 5/16-18 x 1 hex head cs 316ss 50 per box b18.2.1 | 195 |
|
| Brikksen | FL | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 6 1/2 | 5/16-18x6-1/2 hex hd cs ss f593c b18.2.1 | 2839 |
|
| Liberty | IL | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 4 | c/s brass | 6 |
|
| BoltCraft | NE | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | 5/16-18 x 1 hex cap screw gr 18.8 stainless steel 800/ctn-100/pkg | 845 |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Plain | 5/16-18 x 1/2 | 5/16-18 x 1/2 hex cap screw grade 5 plain 3000/ctn | inquire |
|
| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 3 1/2 | 5/16-18 x 3-1/2 hex cap screw grade 5 zinc 450/ctn-50/pkg | 20 |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 1/2 | 5/16-18 x 1/2 hex cap screw grade 8 zinc yellow | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 7 | 5/16-18 x 7 hex cap screw grade 5 zinc 225/ctn-50/pkg | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 3/4 | 5/16-18 x 1-3/4 hex cap screw domestic grade 5 zinc | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 | 5/16-18 x 1 hex cap screw domestic grade 5 zinc | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 1/2 | 5/16-18 x 1-1/2 hex cap screw domestic grade 5 zinc | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1/2 | 5/16-18 x 1/2 hex cap screw grade 5 zinc package of 100 | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 3/4 | 5/16-18 x 3/4 hex cap screw grade 5 zinc package of 100 | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 | 5/16-18 x 1 hex cap screw grade 5 zinc package of 100 | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 2 | 5/16-18 x 2 hex cap screw grade 5 zinc package of 100 | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 3 | 5/16-18 x 3 hex cap screw grade 5 zinc package of 100 | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18 x 1-1/4 hex cap screw grade 5 zinc package of 100 | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 2 | 5/16-18 x 2 hex cap screw grade 8 zinc yellow package of 100 | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 1 1/4 | 5/16-18 x 1-1/4 hex cap screw grade 8 zinc yellow package of 100 | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 1 1/2 | 5/16-18 x 1-1/2 hex cap screw grade 8 zinc yellow package of 100 | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 3/4 | 5/16-18 x 3/4 hex cap screw grade 8 zinc yellow package of 100 | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 1 | 5/16-18 x 1 hex cap screw grade 8 zinc yellow package of 100 | inquire |
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| BoltCraft | NE | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 2 1/2 | 5/16-18 x 2-1/2 hex cap screw grade 8 zinc yellow package of 100 | inquire |
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| Mansco | MI | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 6 | 5/16-18x6 hex cap gr8 znc 50/box | 50 |
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| SRF | AL | Hex Head Cap Screw | Grade 2 | Galvanized | 5/16-18 x 1 | hcs | 106 |
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| SRF | AL | Hex Head Cap Screw | Grade 2 | Plain | 5/16-18 x 1 | hcs | - |
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| SRF | AL | Hex Head Cap Screw | Grade 5 | Plain | 5/16-18 x 1 | hcs | - |
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| SRF | AL | Hex Head Cap Screw | Grade 5 | Plain | 5/16-18 x 1 1/4 | hcs | 431 |
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| SRF | AL | Hex Head Cap Screw | Grade 2 | Plain | 5/16-18 x 1 1/4 | hcs | - |
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| SRF | AL | Hex Head Cap Screw | Grade 8 | Plain | 5/16-18 x 1 1/4 | hcs | 335 |
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| SRF | AL | Hex Head Cap Screw | Nylon | Plain | 5/16-18 x 1 1/4 | hcs | - |
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| SRF | AL | Hex Head Cap Screw | Grade 5 | Zinc/Black | 5/16-18 x 1 1/2 | hcs black | 24,365 |
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| SRF | AL | Hex Head Cap Screw | Grade 5 | Plain | 5/16-18 x 1 1/2 | hcs | - |
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| SRF | AL | Hex Head Cap Screw | Grade 8 | Plain | 5/16-18 x 1 1/2 | hcs | 97 |
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| SRF | AL | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 1 1/2 | hcs | 174 |
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| SRF | AL | Hex Head Cap Screw | Grade 2 | Zinc/Clear | 5/16-18 x 1 1/2 | hcs | - |
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| SRF | AL | Hex Head Cap Screw | Grade 8 | Zinc/Clear | 5/16-18 x 1 1/2 | hcs | 1,966 |
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| SRF | AL | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 1 1/2 | hcs 316 s/s | 14 |
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| SRF | AL | Hex Head Cap Screw | Grade 2 | Galvanized | 5/16-18 x 1 1/2 | hcs | 1,600 |
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| SRF | AL | Hex Head Cap Screw | Grade 2 | Plain | 5/16-18 x 1 3/4 | hcs | - |
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| SRF | AL | Hex Head Cap Screw | Grade 2 | Zinc/Clear | 5/16-18 x 1 3/4 | hcs | - |
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| SRF | AL | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 1 3/4 | hcs | - |
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| SRF | AL | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 1 3/4 | hcs 316 s/s | - |
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| SRF | AL | Hex Head Cap Screw | Nylon | Plain | 5/16-18 x 2 | hcs | 100 |
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| NBS | IL | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 5/8 | 5/16-18 x 5/8 gr.5 hex cap screw trivalent b18.2.1 | 168.3 |
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| NBS | IL | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 3/4 | 5/16-18 x 3/4 gr.5 hex cap screw trivalent b18.2.1 | 254.78 |
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| NBS | IL | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 3/4 | 5/16-18 x 3/4 gr.5 hex cap screw zinc b18.2.1 | 5.2 |
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| NBS | IL | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 2 | 5/16-18 x 2 gr.5 hex cap screw trivalent b18.2.1 | 188.4 |
|
| NBS | IL | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 2 | 5/16-18 x 2 gr.5 hex cap screw zinc b18.2.1 | 52.8 |
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| SIS | AZ | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | hex c/s 18-8 s/s | 945 |
|
| SIS | AZ | Hex Head Cap Screw | Grade 5 | Cadmium | 5/16-18 x 7/8 | cad w/patch | 1206 |
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| SIS | AZ | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 3/4 | hex c/s | 450 |
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| SIS | AZ | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 2 3/4 | hex c/s | 47 |
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| SIS | AZ | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 6 | hex c/s | 25 |
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| CCF | FL | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 2 | hex c/s | 770 |
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| CCF | FL | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 3/4 | hex c/s | 1,408 |
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| CCF | FL | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 1/4 | hex c/s | 1,600 |
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| CCF | FL | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 1/2 | hex c/s | 800 |
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| CCF | FL | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 | hex c/s | 1,291 |
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