1/4 Square Nuts
Square Nuts are just four-sided nuts, but compared to standard hex nuts, square nuts have a greater surface in contact with the part being fastened, and therefore provide greater resistance to loosening. Square nuts are typically mated with square-headed bolts.
124 results, (click on any line for more information)
Buy Square Nuts from one of our FCH Network Members | ||||||||
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Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
MAINSOURC | NH | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 square nut stl | 1780 |
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Ababa | CA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 sq nut s/s b18.2.2 | 10750 |
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Ababa | CA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 sq nut s/s b18.2.2 | 300 |
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Ababa | CA | Square Nut | Steel | Galvanized | 1/4-20 | 1/4-20 sq nut stl hdg b18.2.2 | 74 |
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Ababa | CA | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 sq nut stl pln b18.2.2 | 4175 |
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Ababa | CA | Square Nut | Steel | Black Oxide | 1/4-20 | 1/4-20 sq nut stl blk ox wax b18.2.2 | 978 |
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Ababa | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 sq nut stl znc b18.2.2 | 2798 |
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Ababa | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 sq nut stl znc b18.2.2 | 91 |
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Ababa | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 sq nut chamfered one side stl znc b18.2.2 | 2700 |
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Ababa | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 sq nut chamfered one side stl znc b18.2.2 | 600 |
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YANKEE | NH | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square nut (7/16 acrflts) steel zinc plated | 312 |
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YANKEE | NH | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 square nut (7/16 wide) 18-8 stainless steel | 66 |
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American | NY | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square nut zp | 4000 |
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RePneu To | MI | Square Nut | Grade 2 | Zinc/Clear | 1/4-20 | 1/4-20 square nuts grade 2 zinc | 5000 |
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Weaver | WA | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 square nut plain | 2575 |
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Weaver | WA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 square nut 18-8 ss | 416 |
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Weaver | WA | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square nut zinc | 2200 |
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B & K FAST | PA | Square Nut | Aluminum | Plain | 1/4-20 | 1/4-20 aluminum square nuts b18.2.2 | 500 |
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B & K FAST | PA | Square Nut | Steel | Galvanized | 1/4-20 | 1/4-20 galv square nuts b18.2.2 | 29075 |
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B & K FAST | PA | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 square nuts plain b18.2.2 | 1200 |
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QFC | TX | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 square nut a563 a plain finish b18.2.2 | 54 |
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QFC | TX | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 plain square nut domestic b18.2.2 | 309 |
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QFC | TX | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 plain square nut domestic b18.2.2 | 75 |
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QFC | TX | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 square nut 18-8 304 steel b18.2.2 | 95 |
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Jackson | MS | Square Nut | Steel | Phosphate | 1/4-20 | 1/4-20 rectangular steel flat style speed push nut 9/16 wide x 1 long x .025 thick black phosphate | 4000 |
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METRO IND | OH | Square Nut | Steel | Zinc/Clear | 1/4-20 | square nut uss | 918 |
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METRO IND | OH | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | square nut USS s/s | 56 |
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ACCURATE | IL | Square Nut | Steel | Zinc/Clear | 1/4-20 | square nut regular | 2550 |
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HBBOLT | CA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | square nuts 18-8 304 | 100 |
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SunPack | FL | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 carbon steel square nut zinc | 125 |
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MESAFAST | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | square nut | 5,460.0 |
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Cal Fastenrs | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square machine screw nut trivalent zinc sq. m/s nut | 6,000 |
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Purchase | MO | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square nut zinc | 2854 |
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Purchase | MO | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 regular square nut steel plain | 4400 |
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Century | FL | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 square nut s/s | 5500 |
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Century | FL | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 reg square nut (STEEL ZINC PLT) (STEEL ZINC PLT) | 1600 |
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Wurth Ada | MN | Square Nut | Grade 2 | Zinc/Clear | 1/4-20 | nut sq grade 2 (zt) 1/4-20 | 5,200 |
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MFS | KS | Square Nut | Steel | Plain | 1/4-20 | square nut | 54 |
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MESAFAST | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 x 5/8 | 1/4-20x5/8 afx3/16 thk square nut steel zinc | 6,884.0 |
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GLF | OH | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 square nut 18-8 s/s b18.2.2 () () () | 122 |
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GLF | OH | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square nut stl zc b18.2.2 () () () | 2767 |
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THRDFAST | FL | Square Nut | Steel | Plain | 1/4-20 | square nut b18.2.2 | 6,425 |
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THRDFAST | FL | Square Nut | Steel | Zinc/Clear | 1/4-20 | square nut b18.2.2 | 2,233 |
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Davis | IL | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square nut-steel zinc b18.2.2 | 900 |
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THRDFAST | FL | Square Nut | Steel | Zinc/Clear | 1/4-20 | square nut b18.2.2 | 20 |
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THRDFAST | FL | Square Nut | Steel | Galvanized | 1/4-20 | square nut hdg b18.2.2 | 3 |
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THRDFAST | TN | Square Nut | Steel | Zinc/Clear | 1/4-20 | square nut b18.2.2 | 50 |
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IRF | NJ | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 machine sc square nut stl zinc n14sqmsz | 1,350 |
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Lippin | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square nut zinc | 7700 |
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GUIDON | NJ | Square Nut | Steel | Plain | 1/4-20 | machine screw pattern | 2,702 |
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NutsBolts | NE | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square nut zp | 5103 |
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Cal Fastenrs | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | square nut sq nut | 1,900 |
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Cal Fastenrs | CA | Square Nut | Steel | Plain | 1/4-20 | square nut sq nut | 4,750 |
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GUIDON | NJ | Square Nut | Grade 2 | Zinc/Clear | 1/4-20 | REGULAR PATTERN | 5,728 |
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GUIDON | TX | Square Nut | Grade 2 | Plain | 1/4-20 | REGULAR PATTERN | 2,000 |
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BHAM | AL | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | square nut 300ser ss | 10 |
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Standard | MA | Square Nut | 316, 317, A4 Stainless | Plain | 1/4-20 | 1/4-20 square nut 316 stainless steel b18.2.2 | 43450 |
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Delta | TX | Square Nut | Steel | Galvanized | 1/4-20 | fin square nut steel hdg 1/4-20 | 215 |
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Delta | TX | Square Nut | Steel | Zinc/Clear | 1/4-20 | fin square nut zinc 1/4-20 | 155 |
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Delta | TX | Square Nut | Grade 5 | Zinc/Clear | 1/4-20 | fin square nut grade 5 zinc 1/4-20 | 100 |
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Delta | TX | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | fin square nut 18-8 sst 1/4-20 | 102 |
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All Size | TX | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 square nut b18.2.2 | 4,503 |
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SRF | AL | Square Nut | Steel | Zinc/Clear | 1/4-20 | square nut | - |
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SRF | AL | Square Nut | Steel | Plain | 1/4-20 | square nut | 1,454 |
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SWACO | OH | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 sq nuts stl zinc | 4005 |
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SASCO | OR | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | square nut 18-8 sst | 296 |
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FMP | MA | Square Nut | Brass | Nickel | 1/4-20 | square m/s nut | 34 |
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FMP | MA | Square Nut | Steel | Zinc/Clear | 1/4-20 | square m/s nut | 2700 |
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FMP | MA | Square Nut | Steel | Plain | 1/4-20 | square m/s nut | 940 |
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FMP | MA | Square Nut | Steel | Black Oxide | 1/4-20 | square bolt nut |
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FMP | MA | Square Nut | Steel | Plain | 1/4-20 | square bolt nut |
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FMP | MA | Square Nut | Brass | Plain | 1/4-20 | square m/s nut | 2300 |
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FMP | MA | Square Nut | Steel | Zinc/Clear | 1/4-20 | square bolt nut | 2600 |
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WDMB | IA | Square Nut | Grade A | Zinc/Yellow | 1/4-20 | nut sq gra (zyt) 1/4-20 (W020) | 4,744 |
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QFC | TX | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 square nut single chamfer 304 s/s b18.2.2 | 198 |
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ASFCORP | MI | Square Nut | Grade 2 | Zinc/Clear | 1/4-20 | 1/4-20 reg sq nut sae j995 gr 2 tri zn fe/zn 5an pkg | 5,000 |
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ZAL INDUS | CA | Square Nut | Steel | Cadmium | 1/4-20 | 1/4-20 square nut cad pltd | 4,300 |
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ASMC | IL | Square Nut | Grade 2 | Zinc/Clear | 1/4-20 | coarse gr2 regular square nut low carb zp | 944 |
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ASMC | IL | Square Nut | Grade 2 | Plain | 1/4-20 | coarse gr2 regular square nut low carb | 1,137 |
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ASMC | IL | Square Nut | Grade 2 | Galvanized | 1/4-20 | coarse gr2 regular square nut low carb hdg | 2,250 |
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MTP | CA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 s.s square nuts | stock |
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Kanebridge | IL | Square Nut | Steel | Galvanized | 1/4-20 | 1/4-20 regular square nut hot dipped galvanized | 50,000 |
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Kanebridge | IL | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 regular square nut zinc | 50,000 |
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Liberty | IL | Square Nut | Steel | Zinc/Clear | 1/4-20 | regular square nut rohs | 2,510 |
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HBBOLT | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | square nut | 3,155 |
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XL Screw | GA | Square Nut | Steel | Zinc/Clear | 1/4-20 | regular square nuts zp | 5,000 |
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XL Screw | GA | Square Nut | Steel | Plain | 1/4-20 | regular square nuts | 5,000 |
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UNEEDA | NJ | Square Nut | Steel | Zinc/Clear | 1/4-20 | regular square nut | 82700 |
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Northern | MN | Square Nut | Steel | Zinc/Clear | 1/4-20 | nc sq mach nut pk zc | 64 |
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Olander | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 sq nut stl zn cr3 () () | 903 |
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Hayes | CA | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 square nut pln | 635 |
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Hayes | CA | Square Nut | Brass | Plain | 1/4-20 | 1/4-20 square nut brass | 5 |
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Hayes | CA | Square Nut | Steel | Galvanized | 1/4-20 | 1/4-20 square nut hdg | 13 |
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Hayes | CA | Square Nut | Aluminum | Plain | 1/4-20 | 1/4-20 square nut alum | 12 |
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Century | FL | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 reg square nut stl zinc ((ROHS COMPLIANT)) ((ROHS COMPLIANT)) | 30037 |
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NAPPCO | TX | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | square nut s/s 18-8 1/4-20 (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) | 393 |
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OSSCO | RI | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square machine screw nut plated b18.2.2 | 1,700 |
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OSSCO | RI | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square nut plated b18.2.2 | 2,962 |
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WDMB | IA | Square Nut | 316, 317, A4 Stainless | Plain | 1/4-20 | nut sq 316 (pl) 1/4-20 (W0J0) (W0J0) | 4,525 |
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SWACO | OH | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square machine screw nut zinc | 91859 |
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SunPack | FL | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 carbon steel square nut zinc | 125 |
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SJS Prod | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 hex nut w/sq cone washer st zp rohs | 772 |
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Standard | MA | Square Nut | Brass | Plain | 1/4-20 | 1/4-20 square nut brass | 1692 |
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Century | NY | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 regular square nut pln | 30000 |
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Fastener | OH | Square Nut | Steel | Plain | 1/4-20 | square nut 1/4-20 304 | 98 |
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AFI | FL | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 square regular nut st () () | 1990 |
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Valley Nu | WA | Square Nut | Steel | Zinc/Black | 1/4-20 | nc regular square nut zb | 115 |
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Century | NY | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 reg square nut stl zinc (rohs compliant) | 30037 |
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Alma Bolt | MI | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | st. st. square nut | 5003 |
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AFI | FL | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square regular nut st zn () () | 556 |
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JET FITTING | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 sq nuts stl zinc 237028 b18.2.2 | 4005 |
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THRDFAST | MS | Square Nut | Steel | Galvanized | 1/4-20 | square nut hdg b18.2.2 | 10 |
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Century | NY | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 square nut s/s | 5500 |
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Century | FL | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 regular square nut pln | 30000 |
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Century | NY | Square Nut | Steel | Zinc/Clear | 1/4-20 reg square nut steel zinc plt | 1600 |
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Alma Bolt | MI | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 zinc plated square nut | 4191 |
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FMP | MA | Square Nut | Steel | Plain | 1/4-24 | square m/s nut | 17630 |
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CNB | IL | Square Nut | Steel | Zinc/Clear | 1/4-28 | 1/4-28 square nut 12l14 per drawing # 8140537 rev c plate per spec #2030 spap approved | 5 |
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American | NY | Square Nut | Steel | Zinc/Clear | 1/4-28 | square nut pl | 420 |
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Standard | MA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-28 | 1/4-28 square nut 18-8 stainless steel b18.2.2 | 1890 |
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Mansco | MI | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-28 reg square nut 18-8 s.s. | 1884 |
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Jackson | MS | Square Nut | Steel | Zinc/Clear | 1/4 | nc square nut | 7941 |
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ASFCORP | MI | Square Nut | Steel | Phosphate | 1/4-20 13/16 | 1/4-20 sq 13/16 af x 5/16 thk nut hot roll stl phos+oil | 313 |
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IPC | VA | Square Nut | Steel | Plain | 1/4 | 1/4 license plate nut nylon square auveco | 450 |
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