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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.
175,899 Hex Head Cap Screw, showing 200, (click on any line for more information)
| Search Results Sponsored by Spring Bolt & Nut Mfg., your source for Hex Head Cap Screws. For more results, visit www.springboltandnut.com | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Spring Bo | TX | Hex Head Cap Screw | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 5/16-18 x 1/2 | 5/16(18) x 1/2 hex cap screw A453 grade 660B (A286) b18.2.1 b18.2.1 usa | inquire |
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| Spring Bo | TX | Hex Head Cap Screw | Duplex Stainless (2205, Ferralium etc.) | Plain | 5/16-18 x 3/4 | 5/16(18) x 3/4 hex cap screw d2205 b18.2.1 b18.2.1 usa | inquire |
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| Spring Bo | TX | Hex Head Cap Screw | Duplex Stainless (2205, Ferralium etc.) | Plain | 5/16-18 x 1 3/4 | 5/16(18) x 1-3/4 hex cap screw d2205 b18.2.1 b18.2.1 usa | inquire |
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| Spring Bo | TX | Hex Head Cap Screw | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 5/16-18 x 1 | 5/16(18) x 1 hex cap screw al6xn b18.2.1 b18.2.1 usa | inquire |
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| Buy Hex Cap Screws from one of our FCH Network Partners | ||||||||
| Zoro Tools Inc. | Hex Head Cap Screw | Grade 2 | Plain | 5/16-18 | 5/16-18 grade 2 hex head cap screw steel pk 100 |
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| Zoro Tools Inc. | Hex Head Cap Screw | Grade 2 | Plain | 5/16-18 | 5/16-18 grade 2 hex head cap screw steel pk 100 |
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| Zoro Tools Inc. | Hex Head Cap Screw | Grade 8 | Plain | 5/16-18 | 5/16-18 grade 8 hex head cap screw steel pk 25 |
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| Zoro Tools Inc. | Hex Head Cap Screw | Grade 8 | Plain | 5/16-18 | 5/16-18 grade 8 hex head cap screw steel pk 50 |
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| Buy Hex Cap Screws from one of our FCH Network Members | ||||||||
| ACF | CA | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1/2 | 5/16-18x1/2 s/s hex head cap screw | 50 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 5 | hex c/s hex cap gr. 5 | 50 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Steel | Galvanized | 5/16-18 x 1 1/4 | hex c/s h.d. hex cag h.d.g. | 50 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 5/8 | hex c/s 316 s/s f-593 on head | 60 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Steel | Zinc/Clear | 5/16-18 x 6 | hex c/s hex cap | 85 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 3/4 | 5/16-18 x 3/4 hex c/s - dc- i hex cap grd8 | 38 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 8 | Plain | 5/16-18 x 1 3/4 | hex c/s dom. h/b | 155 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 4 1/2 | hex c/s hex cap | 200 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Steel | Zinc/Clear | 5/16-18 x 7/8 | hex c/s hex cap | 220 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 4 | hex c/s hex cap | 349 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 6 1/2 | hex c/s hex cap grd5 | 150 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 7/16 | hex c/s 316 s/s f-593 on hd. buy 5/8 long to by cut down | 300 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 1 | hex c/s dichromate hex cap | 50 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 2 | hex c/s chromate hex cap grd8 | 250 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 5 | Plain | 5/16-18 x 3/4 | hex c/s hex cap | 1,100 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 5 | Plain | 5/16-18 x 1 | hex c/s w/ serrations -al nas4006 spec | 500 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 5 | Plain | 5/16-18 x 1/2 | hex washer gr5 w/ serrations & nylon patch 2 up 5 covered | 3,600 |
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| Brikksen | FL | Hex Head Cap Screw | Steel | Plain | 5/16-18 x 3/4 | 5/16-18 x 3/4 hx hd c/s sil/br | 4400 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 3/4 | hex c/s grd 5 - Cr3+ he cap | 300 |
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| NutsBolts | NE | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 1/2 | 5/16-18 x 1/2 brass hcs | 452 |
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| NutsBolts | NE | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 3/4 | 5/16-18 x 3/4 brass hcs | 164 |
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| NutsBolts | NE | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 brass hcs | 12 |
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| NutsBolts | NE | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/2 brass hcs | 36 |
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| NutsBolts | NE | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 1 | 5/16-18 x 1 brass hcs | 30 |
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| NutsBolts | NE | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 2 | 5/16-18 x 2 brass hcs | 67 |
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| NutsBolts | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1/2 | 5/16-18 x 1/2 hcs z5 | 5805 |
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| NutsBolts | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 5/8 | 5/16-18 x 5/8 hcs z5 | 3178 |
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| NutsBolts | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 3/4 | 5/16-18 x 3/4 hcs z5 | 10612 |
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| NutsBolts | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 | 5/16-18 x 1 hcs z5 | 300 |
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| NutsBolts | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 | 5/16-18 x 1 hcs z5 | 58085 |
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| NutsBolts | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/2 hcs z5 | 6418 |
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| NutsBolts | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 7/8 | 5/16-18 x 7/8 hcs z5 | 1449 |
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| NutsBolts | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 hcs z5 | 300 |
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| NutsBolts | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 hcs z5 | 81574 |
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| NutsBolts | NE | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 2 | 5/16-18 x 2 hcs z5 | 17523 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 3/4 | hex c/s 18-8 304 hex c/s | 100 |
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| Standard | MA | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 7 | 5/16-18x7 hex cap screw 18-8 stainless steel b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | Silicon Bronze | Plain | 5/16-18 x 1 1/2 | 5/16-18x1-1/2 hex cap screw silicon bronze b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 8 | 5/16-18x8 hex cap screw 18-8 stainless steel b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | Silicon Bronze | Plain | 5/16-18 x 3 1/2 | 5/16-18x3-1/2 hex cap screw silicon bronze b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | Silicon Bronze | Plain | 5/16-18 x 1 3/4 | 5/16-18x1-3/4 hex cap screw silicon bronze b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | Silicon Bronze | Plain | 5/16-18 x 4 | 5/16-18x4 hex cap screw silicon bronze b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | Silicon Bronze | Plain | 5/16-18 x 2 1/2 | 5/16-18x2-1/2 hex cap screw silicon bronze b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | Silicon Bronze | Plain | 5/16-18 x 1 1/4 | 5/16-18x1-1/4 hex cap screw silicon bronze b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | Silicon Bronze | Plain | 5/16-18 x 1/2 | 5/16-18x1/2 hex cap screw silicon bronze b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | Silicon Bronze | Plain | 5/16-18 x 1 | 5/16-18x1 hex cap screw silicon bronze b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | Silicon Bronze | Plain | 5/16-18 x 2 | 5/16-18x2 hex cap screw silicon bronze b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/8 | 5/16-18x1-1/8 hex cap screw 18-8 stainless steel b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 5/8 | 5/16-18x5/8 hex cap screw 18-8 stainless steel b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 2 1/2 | 5/16-18x2-1/2 hex head cap screw 316 stainless steel b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 4 | 5/16-18x4 hex head cap screw 316 stainless steel b18.2.1 | inquire |
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| Standard | MA | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 2 | 5/16-18x2 hex head cap screw 316 stainless steel b18.2.1 | inquire |
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| BHAM | AL | Hex Head Cap Screw | Grade B8 | Plain | 5/16-18 x 2 | hex cs a193-b-8 s/s | 17 |
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| BHAM | AL | Hex Head Cap Screw | Grade 5 | Zinc/Yellow | 5/16-18 x 2 | gr5 hex cs znc yllw | 312 |
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| BHAM | AL | Hex Head Cap Screw | Grade 5 | Plain | 5/16-18 x 2 1/4 | hex c/s full-thrd | 300 |
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| BHAM | AL | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 4 3/4 | hex c/s | 20 |
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| BHAM | AL | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 5/8 | hex c/s 316ss | 85 |
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| BHAM | AL | Hex Head Cap Screw | Grade 2 | Zinc/Clear | 5/16-18 x 5 | hex c/s full-thrd gr.2 zn | 140 |
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| BHAM | AL | Hex Head Cap Screw | Grade 2 | Zinc/Clear | 5/16-18 x 7/8 | hex c/s gr2 zn | 423 |
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| BHAM | AL | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 7 3/4 | hex c/s yw zn | 3 |
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| BHAM | AL | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | hex cs a193-b8 ss | 20 |
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| BHAM | AL | Hex Head Cap Screw | Grade 5 | Black Oxide | 5/16-18 x 2 | hex c/s full-thrd blk | 16 |
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| BHAM | AL | Hex Head Cap Screw | Grade 5 | Zinc/Black | 5/16-18 x 3/4 | hex c/s black znc | 77 |
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| BHAM | AL | Hex Head Cap Screw | Grade 5 | Galvanized | 5/16-18 x 3 1/2 | hex c/s hdg | 5 |
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| BHAM | AL | Hex Head Cap Screw | Grade 2 | Plain | 5/16-18 x 1 1/2 | hex c/s full-thrd gr.2 | 14 |
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| BHAM | AL | Hex Head Cap Screw | Grade 5 | Galvanized | 5/16-18 x 1 1/2 | hex c/s gr5 hdg | 8 |
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| BHAM | AL | Hex Head Cap Screw | Grade 2 | Plain | 5/16-18 x 1 | hex c/s gr2 | 3 |
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| BHAM | AL | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 3/8 | hex c/s gr5 zn | 82 |
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| Class C | MN | Hex Head Cap Screw | Nylon | Plain | 5/16-18 x 1 | c/s | 100 |
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| MidStates | MI | Hex Head Cap Screw | Grade 8 | Zinc/Black | 5/16-18 x 2 3/4 | hex c/s blk znc | 1601 |
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| MidStates | MI | Hex Head Cap Screw | Grade 2 | Plain | 5/16-18 x 3 3/4 | hex c/s | 1626 |
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| MidStates | MI | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 2 3/4 | hex c/s brs | 81 |
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| MidStates | MI | Hex Head Cap Screw | Grade 9 | Zinc/Yellow | 5/16-18 x 1/2 | hex c/s l-9el | 2466 |
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| MidStates | MI | Hex Head Cap Screw | Grade 5 | Zinc/Yellow | 5/16-18 x 4 | in hex c/s el | 489 |
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| MidStates | MI | Hex Head Cap Screw | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 5/16-18 x 3/4 20 | 5/16-18x3/4 hex c/s 20 | 16 |
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| MidStates | MI | Hex Head Cap Screw | Ni-Cu Alloy (Monel, K-Monel, etc.) | Plain | 5/16-18 x 3/4 | hex c/s monel | 134 |
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| MidStates | MI | Hex Head Cap Screw | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 5/16-18 x 2 20 | 5/16-18x2 hex c/s 20 | 29 |
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| MidStates | MI | Hex Head Cap Screw | Grade 5 | Zinc/Black | 5/16-18 x 1 1/2 | hex c/s blk znc | 183 |
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| MidStates | MI | Hex Head Cap Screw | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 5/16-18 x 1 1/4 20 | 5/16-18x1 1/4 hex c/s 20 | 51 |
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| MidStates | MI | Hex Head Cap Screw | Grade 5 | Zinc/Yellow | 5/16-18 x 1 1/2 | hex c/s el | 548 |
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| MidStates | MI | Hex Head Cap Screw | Brass | Plain | 5/16-18 x 4 | in hex c/s brs | 42 |
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| MidStates | MI | Hex Head Cap Screw | Grade 5 | Zinc/Black | 5/16-18 x 1 | in hex c/s blk znc | 107 |
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| MidStates | MI | Hex Head Cap Screw | Grade 9 | Zinc/Yellow | 5/16-18 x 3/4 | hex c/s l-9el | 1492 |
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| MidStates | MI | Hex Head Cap Screw | Grade 5 | Zinc/Black | 5/16-18 x 1 3/4 | hex c/s blk znc | 5177 |
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| MidStates | MI | Hex Head Cap Screw | Grade 5 | Zinc/Yellow | 5/16-18 x 3 1/4 | hex c/s el | 148 |
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| ACF | CA | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | 5/16-18 x 7/8 | 5/16-18x7/8 s/s hex head cap screw passivated unc2a | 60 |
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| ACF | CA | Hex Head Cap Screw | Grade 5 | Cadmium | 5/16-18 x 3 3/4 | 5/16-18x3-3/4 hex head cap screw gr5 cad ii | 114 |
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| GUIDON | NJ | Hex Head Cap Screw | Grade 5 | Plain | 5/16-18 x 5/8 | USA MADE | 100 |
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| GUIDON | NJ | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 7/8 | 5,700 |
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| GUIDON | NJ | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 1 1/2 | 1,700 |
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| GUIDON | NJ | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 2 | 706 |
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| GUIDON | NJ | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 2 1/2 | 992 |
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| GUIDON | NJ | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 5 1/2 | 50 |
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| GUIDON | NJ | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 6 | NUCOR | 40 |
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| GUIDON | NJ | Hex Head Cap Screw | Grade 2 | Zinc/Clear | 5/16-18 x 7/8 | 9,300 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | hex c/s 18-8 304 hex c/s | 100 |
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| Cal Fastenrs | CA | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-18 x 2 1/2 | c/s - grd 5 - Cr3+ Cr3+ | 300 |
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