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Square Head Set Screws, also called a Square Head Grub Screws are screws with a square head usually smaller than the diameter of the screw, designed to hold one object against another object, usually without requiring a nut. Commonly used to secure a shaft against a pulley.
No results , but 200 less specific items displayed.
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty |
|---|---|---|---|---|---|---|---|
| Set Screw | IL | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 1/2 | cup point square set clear & bake | inquire |
| Set Screw | IL | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1/2 | cup point 18-8 304 square set | inquire |
| Set Screw | IL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 5/8 | cup point square set case hardened | inquire |
| Search results presented by Set Screw & Mfg. Co., your source for Square Set Screws. For more results, visit setscrewmfg.com | |||||||
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty |
| Set Screw | IL | Set Screw (Square Head) | Steel | Zinc/Yellow | 5/16-18 x 5/8 | cup point case hardened square set & yellow plate | inquire |
| Set Screw | IL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 5/8 | knurled cup point case hardened square set | inquire |
| Set Screw | IL | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 5/8 | cup point 18-8 304 square set | inquire |
| Set Screw | IL | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 5/8 | square set cup point case hardened | inquire |
| Set Screw | IL | Set Screw (Square Head) | 316, 317, A4 Stainless | Plain | 5/16-18 x 5/8 | cup point (316) stainless square set | inquire |
| Set Screw | IL | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 3/4 | cup point case hardened square set | inquire |
| Set Screw | IL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | knurled cup point case hardened square set | inquire |
| Set Screw | IL | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | cup point 18-8 304 square set | inquire |
| Set Screw | IL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | cup point not hardened square set | inquire |
| Set Screw | IL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 7/8 | square set cup point case hardened | 1800 |
| Set Screw | IL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | cup point case hardened square set nylon patch | inquire |
| Set Screw | IL | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 1 | cup point low carbon case hard square set | inquire |
| Set Screw | IL | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 1 | cup point low carbon case hard square set nylon patch | inquire |
| MFS | KS | Set Screw (Square Head) | Steel | Zinc/Yellow | 5/16-18 x 3/8 | square cup point | 157 |
| Mansco | MI | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/8 | sq set scr 100/box | 200 |
| Northern | MN | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 3/8 | s/o 5/16-18x3/8 sq hd set zinc | 75 |
| TownCountry | AR | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 1/2 | square set | 1000 |
| METRO IND | OH | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | square set cup pt | 69 |
| Wurth Ada | MN | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | scr set square cp alloy 5/16-18x1/2 | 3,150 |
| Wurth Ada | MN | Set Screw (Square Head) | Steel | Zinc/Yellow | 5/16-18 x 1/2 | scr set square cp charound (zy) 5/16-18x1/2 | 871 |
| Valley Nu | WA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | nc square set hard pl | 19 |
| THRDFAST | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | square set cup pt b18.6.2 | 97 |
| Ameri | NY | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | square set cup point | 100 |
| THRDFAST | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | square set cup pt b18.6.2 | 25 |
| MFS | KS | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | square cup point | 258 |
| SRF | AL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | square set cup pt | 279 |
| Komar | IL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | square set -cup pt nylon patch | 12,600 |
| Future Fastener | TX | Set Screw (Square Head) | Steel | Black Oxide | 5/16-18 x 1/2 | 5/16-18 x 1/2 square head set cup pt blk | 100 |
| OBRIEN | OH | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | square set cup pt nylon patch | 2460 |
| Northern | MN | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | s/o 5/16-18x1/2 sq hd set plain | 1100 |
| CNB | IL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | square | 50 |
| NutsBolts | NE | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | 5/16-18 x 1/2 square head set screw | 39 |
| FasSpcMfg | FL | Set Screw (Square Head) | 316, 317, A4 Stainless | Plain | 5/16-18 x 1/2 | square set cup point 316 stainless | 26 |
| BHAM | AL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | 5/16-18 x 1/2 sq hd set screw b18.6.2 | 79 |
| Wurth | IN | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1/2 | 5/16-18 x 1/2 sqr hd set screw cup pt case hrd zf coating per 705100300 cps 5035/5039 | 3,162 |
| METRO IND | OH | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 5/8 | square set cup pt | 235 |
| ACCURATE | IL | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 5/8 | coarse square set scr cup | 2150 |
| Valley Nu | WA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 5/8 | nc square set hard pl | 16 |
| ISSCO | MO | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 5/8 | cup point | 3200 |
| BHAM | AL | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 5/8 | square set 300 ser ss | 6,950 |
| BHAM | AL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 5/8 | square set | 100 |
| SRF | AL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 5/8 | square set cup pt | 271 |
| FasSpcMfg | FL | Set Screw (Square Head) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 5/16-18 x 5/8 | square set cup point carpenter 20 | 3 |
| Wurth | IN | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 5/8 | 5/16-18 x 5/8 sq hd set screw cup point zf coating per 705100300 cps 5035/5039 | 2,600 |
| Hayes | CA | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | square set cup pt 18-8ss | 91 |
| YANKEE | NH | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | 5/16-18 x 3/4 sq hd set cup pt | 201 |
| HOUSE | FL | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 3/4 | square set scr zn | 4,000 |
| Wurth Ada | MN | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 3/4 | scr set square cp charound (zt) 5/16-18x3/4 | 298,019 |
| Wurth Ada | MN | Set Screw (Square Head) | Steel | Zinc/Yellow | 5/16-18 x 3/4 | scr set square cp charound (zy) 5/16-18x3/4 | 15,065 |
| Bolts Plus | Ont | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | square cup point set | 268 |
| Valley Nu | WA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | nc square set hard pl | 26 |
| THRDFAST | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | square set cup pt b18.6.2 | 24 |
| Ameri | NY | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | square set | 250 |
| WDMB | IA | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 3/4 | sq set cup pt zn-coat k plt | 8331 |
| MFS | KS | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | square cup point | 152 |
| ISSCO | MO | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | cup point | 3700 |
| SRF | AL | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 3/4 | square set cup pt | 827 |
| SIS | AZ | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | sq set cup pt | 100 |
| Komar | IL | Set Screw (Square Head) | Steel | Black Oxide | 5/16-18 x 3/4 | square set -cup pt black ox | 1,500 |
| Future Fastener | TX | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | 5/16-18 x 3/4 square head set screw ss | 530 |
| Lippin | CA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | setscrew square head plain | stock |
| Northern | MN | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 3/4 | s/o 5/16-18x3/4 sq hd set screw zinc | 458 |
| THRDFAST | MS | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | square set cup pt b18.6.2 | 80 |
| NutsBolts | NE | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3/4 | 5/16-18 x 3/4 square head set screw | 981 |
| FasSpcMfg | FL | Set Screw (Square Head) | Ni-Cu Alloy (Monel, K-Monel, etc.) | Plain | 5/16-18 x 3/4 | square set cup point ni-cu 400 | 1 |
| FasSpcMfg | FL | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | square set oval point dwg 303 18-8 304 oval point radius 5/16 drill hole thru 1 set of flats 1/32x45deg | 1 |
| FasSpcMfg | FL | Set Screw (Square Head) | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | 5/16-18 x 3/4 | square set cup point hastelloy c 276 | 2 |
| FasSpcMfg | FL | Set Screw (Square Head) | Silicon Bronze | Plain | 5/16-18 x 3/4 | square set cup point | 65 |
| FasSpcMfg | FL | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3/4 | 5/16-18x3/4 square set cup point 904l 18-8 304 | 3 |
| FasSpcMfg | FL | Set Screw (Square Head) | Silicon Bronze | Plain | 5/16-18 x 3/4 | 5/16-18x3/4 square set oval point 655 | 2 |
| WSB | KY | Set Screw (Square Head) | Steel | Zinc/Yellow | 5/16-18 x 3/4 | screw set sqr cp chard (zy) 5/16-18x3/4 b18.6.2 | 5,088 |
| Century | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 7/8 | 5/16-18 x 7/8 sq.hd.half dog point | 5 |
| ISSCO | MO | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 7/8 | cup point | 15100 |
| FastWare | Sask | Set Screw (Square Head) | Steel | Zinc/Yellow | 5/16-18 x 7/8 | nc square cup point set | 111 |
| Hayes | CA | Set Screw (Square Head) | 316, 317, A4 Stainless | Plain | 5/16-18 x 1 | 5/16-18 x 1 sq hd set cup pt t-316 | 589 |
| CIF | IL | Set Screw (Square Head) | Steel | Zinc/Yellow | 5/16-18 x 1 | square set ,, yellow, case hardened to 34-44 rc | 8735 |
| YANKEE | NH | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | 5/16-18 x 1 sq hd set cup pt | 150 |
| MESAFAST | CA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | square set cup pt | 100.0 |
| Bolts Plus | Ont | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | square cup point set | 359 |
| Wurth Ada | MN | Set Screw (Square Head) | Steel | Zinc/Yellow | 5/16-18 x 1 | scr set square cp alloy (zy) 5/16-18x1 | 6,542 |
| Valley Nu | WA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | nc square set hard pl | 39 |
| THRDFAST | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | square set cup pt b18.6.2 | 124 |
| THRDFAST | FL | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | 18-8 ss square set cup pt b18.6.2 | 9 |
| Ameri | NY | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | square set cup point | 100 |
| Ameri | NY | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | 5/16-18 x 1 square hd set screws cup pt | 4000 |
| IRF | NC | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | square set cup pt | 24200 |
| WDMB | IA | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | sq set cup pt 18-8 ss | 901 |
| MFS | KS | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | square cup point | 247 |
| ISSCO | MO | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 1 | full dog | 380 |
| SRF | AL | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 1 | square set cup pt | 873 |
| SRF | AL | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | square set cup pt s/s | 41 |
| Komar | IL | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 1 | square set-cup pt 1/2lg nyl patch | 475 |
| Future Fastener | TX | Set Screw (Square Head) | Steel | Black Oxide | 5/16-18 x 1 | 5/16-18 x 1 square hd set screw blk | 59 |
| Lippin | CA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | setscrew square head plain | stock |
| THRDFAST | MS | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | square set cup pt b18.6.2 | 100 |
| FMP | MA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | square set/s full dog pt. | 568 |
| NutsBolts | NE | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | 5/16-18 x 1 square head set screw | 33 |
| FasSpcMfg | FL | Set Screw (Square Head) | 316, 317, A4 Stainless | Plain | 5/16-18 x 1 | square set cup point 316 stainless | 735 |
| FasSpcMfg | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | square set cup point ni-cu | 2 |
| FasSpcMfg | FL | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | 5/16-18x1 square set cup point 904l 18-8 304 | 2 |
| FasSpcMfg | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 | square set cup point rc 45 min | 158 |
| FastWare | Sask | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | nc square set cone point 18.8 ss | 100 |
| Hayes | CA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/4 | square set cup pt stl | 22 |
| Bolts Plus | Ont | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/4 | square cup point set | 347 |
| Valley Nu | WA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/4 | nc square set hard pl | 82 |
| Ameri | NY | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/4 | square set cup pt | 1000 |
| IRF | NC | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/4 | square set cup pt | 1699 |
| SRF | AL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/4 | square set cup pt | 7 |
| CNB | IL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/4 | square | 50 |
| FMP | MA | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 1 1/4 | square set/s cup pt. | 4300 |
| FMP | MA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/4 | square set/s full dog pt. | 84 |
| NutsBolts | NE | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/4 | 5/16-18 x 1 1/4 square head set screw | 64 |
| FasSpcMfg | FL | Set Screw (Square Head) | Silicon Bronze | Plain | 5/16-18 x 1 1/4 | square set cup point | 690 |
| WSB | KY | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/4 | screw set sqr cp (18-8) 5/16-18x1 1/4 b18.6.2 | 3,547 |
| FastWare | Sask | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/4 | nc square set cup point | 49 |
| Hayes | CA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | square set cup pt stl | 42 |
| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | 5/16-18 x 1-1/2 alloy steel square hd cup point set screw | 80 |
| Bolts Plus | Ont | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | square cup point set | 429 |
| Valley Nu | WA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | nc square set hard pl | 24 |
| THRDFAST | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | square set cup pt b18.6.2 | 33 |
| THRDFAST | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | square set cup pt b18.6.2 | 111 |
| OBRIEN | OH | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | sq set cup | 66 |
| IRF | NC | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | square set cup pt | 490 |
| WDMB | IA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | square set | 150 |
| SRF | AL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | square set cup pt | 1629 |
| SRF | AL | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 1/2 | square set cup pt s/s | 120 |
| MidStates | MI | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | square set 1/2 dog pt pl | 28 |
| Future Fastener | TX | Set Screw (Square Head) | Steel | Black Oxide | 5/16-18 x 1 1/2 | 5/16-18 x 1-1/2 square hd set screw blk | 74 |
| Lippin | CA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | setscrew square head plain | stock |
| IRF | NJ | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | square set cup point | 1535 |
| NutsBolts | NE | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/2 square head set screw | 103 |
| FasSpcMfg | FL | Set Screw (Square Head) | 316, 317, A4 Stainless | Plain | 5/16-18 x 1 1/2 | square set cup point 316 stainless | 2 |
| ASFCORP | MI | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/2 sq hd set scw cup pt stl case hard pkg | 50 |
| METRO IND | OH | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 3/4 | square set cup pt | 88 |
| Valley Nu | WA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 3/4 | nc square set hard pl | 41 |
| THRDFAST | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 3/4 | square set cup pt b18.6.2 | 200 |
| Ameri | NY | Set Screw (Square Head) | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | square set cup pt pl | 1000 |
| THRDFAST | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 3/4 | square set cup pt b18.6.2 | 25 |
| SRF | AL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 3/4 | square set cup pt | 137 |
| WDMB | IA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 1 3/4 | sq set flat pt | 100 |
| Hayes | CA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 | square set cup pt stl | 59 |
| METRO IND | OH | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 | square set cup pt | 50 |
| Bolts Plus | Ont | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 | square cup point set | 302 |
| Valley Nu | WA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 | nc square set hard pl | 87 |
| Ameri | NY | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 | square set dome point | 370 |
| SIS | AZ | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 2 | square cup point set 18-8 304 | 994 |
| Komar | IL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 | square set -cup pt | 400 |
| Lippin | CA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 | setscrew square head plain | stock |
| SWACO | OH | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 | 5/16-18x2 square hd set sc cup case har | 1000 |
| NutsBolts | NE | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 | 5/16-18 x 2 square head set screw | 34 |
| Sask | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 | nc square set cup point | 988 | |
| SunPack | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 1/4 | 5/16-18 x 2-1/4 alloy steel square hd cup point set screw | 80 |
| Valley Nu | WA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 1/4 | nc square set hard pl | 91 |
| MidStates | MI | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 1/4 | square set cup pt | 562 |
| Jackson | MS | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 1/4 | nc square set | 117 |
| THRDFAST | MS | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 1/4 | square set cup pt b18.6.2 | 30 |
| METRO IND | OH | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 1/2 | square set cup pt | 78 |
| Bolts Plus | Ont | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 1/2 | square cup point set | 85 |
| Valley Nu | WA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 1/2 | nc square set hard pl | 44 |
| EFSCO | OR | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 1/2 | 5/16-18 x 2 1/2 square head set screws cup point coarse | 182 |
| THRDFAST | MS | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 1/2 | square set cup pt b18.6.2 | 100 |
| NutsBolts | NE | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 1/2 | 5/16-18 x 2 1/2 square head set screw | 30 |
| MidStates | MI | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 2 3/4 | square set cup pt | 81 |
| Hayes | CA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3 | square set cup pt stl | 115 |
| METRO IND | OH | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3 | square set cup pt | 49 |
| Bolts Plus | Ont | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3 | square cup point set | 46 |
| THRDFAST | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3 | square set cup pt b18.6.2 | 38 |
| All Size | TX | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3 | 5/16-18 x 3 square head set screw b18.6.2 | 25 |
| SRF | AL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3 | square set cup pt | 134 |
| NutsBolts | NE | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3 | 5/16-18 x 3 square head set screw | 992 |
| FasSpcMfg | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3 | sqr set flat pt | 2 |
| ASMC | IL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3 | (ft) coarse square set cup pt low carb case hard | 33 |
| MidStates | MI | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3 1/4 | square set cup pt | 17 |
| Lippin | CA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 13/4 | setscrew square head plain | stock |
| SRF | AL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 3 1/2 | square set cup pt | 40 |
| FasSpcMfg | FL | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 3 1/2 | square set cup point 18-8 s/s | 98 |
| Valley Nu | WA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 4 | nc square set hard pl | 44 |
| FasSpcMfg | FL | Set Screw (Square Head) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 4 | square set cup pt 18-8 s/s | 9 |
| Valley Nu | WA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 4 1/2 | nc square set hard pl | 74 |
| Future Fastener | TX | Set Screw (Square Head) | Steel | Black Oxide | 5/16-18 x 4 1/2 | 5/16-18 x 4-1/2 square hd set scr blk | 13 |
| MidStates | MI | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 5 | in square set cup pt | 197 |
| Hayes | CA | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 6 | square set cup pt stl | 13 |
| Bolts Plus | Ont | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 6 | square set | 23 |
| MidStates | MI | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 6 | in square set cup pt | 188 |
| FasSpcMfg | FL | Set Screw (Square Head) | Steel | Plain | 5/16-18 x 7.375 | sqr set 1/2 dog pt rc 45-50 | 2 |
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