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.
132 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 | 2000 |
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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 | 2475 |
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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 | 2100 |
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OneMonroe | NC | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 plain rectanguler spring nut (1903) | 2460 |
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OneMonroe | NC | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 square nut 18.8 stainless steel | 1610 |
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OneMonroe | NC | Square Nut | Steel | Zinc/Black | 1/4-20 | 1/4-20 square nut black zinc | 2000 |
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OneMonroe | NC | Square Nut | Steel | Black Oxide | 1/4-20 | 1/4-20 square nut black ox | 150 |
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OneMonroe | NC | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 reg sq nut-pln | 3701 |
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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 | 3000 |
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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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Endries | WI | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 square nut plain | 5079 |
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MESAFAST | CA | Square Nut | Steel | Zinc/Clear | 1/4-20 | square nut | 5,460.0 |
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Endries | WI | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square nut zinc | 4000 |
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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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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 | 4,284.0 |
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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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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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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 | 3505 |
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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 Plated | 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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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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A-Plus Co | OR | Square Nut | Plain | 1/4-20 | 1/4-20 sq nut nc | 204 |
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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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Endries | WI | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square nut hex chromium free 96 hr salt spray zinc | 410 |
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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 | 6862 |
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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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Accutite | CA | Square Nut | Brass | Plain | 1/4-20 | 1/4-20 sq nut brass ni. .438/.423 sq 7/32 thick both sides flat gm600n3 rev d | 54610 |
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Fastenerc | OH | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 steel square nut zinc | 3700 |
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Accutite | CA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 regular square nut stainless stl | 10000 |
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Raw Produ | NJ | Square Nut | Steel | Zinc/Clear | 1/4-20 | square nuts zinc 1/4-20 | 2680 |
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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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Century | FL | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 reg square nut steel zinc plt | 1600 |
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OneMonroe | MA | Square Nut | Steel | Black Oxide | 1/4-20 | 1/4-20 square nut black ox | 150 |
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OneMonroe | MA | Square Nut | Steel | Plain | 1/4-20 | 1/4-20 plain rectanguler spring nut (1903) | 2460 |
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Komar | IL | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 reg square nut(7/16x7/32) zinc |
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GLF | OH | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | 1/4-20 sq nut 18-8 s/s | 44 |
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Century | FL | Square Nut | Plain | 1/4-20 | 1/4-20 regular square nut pln | 30000 |
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Field Fas | IL | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 square snap-in nut .093-.126 panel thk stl zc | 400 |
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GLF | OH | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 sq nut stl zc | 2267 |
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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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OneMonroe | MA | Square Nut | Steel | Zinc/Black | 1/4-20 | 1/4-20 square nut black zinc | 2000 |
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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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Irwin Ind | Ont | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 unc square m/s nut zinc triv clear | 1000 |
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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 | 4684 |
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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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THRDFAST | MS | Square Nut | Steel | Galvanized | 1/4-20 | square nut hdg b18.2.2 | 10 |
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Raw Produ | NJ | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | square nuts 304 ss 1/4-20 (flat) | 6006 |
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Raw Produ | NJ | Square Nut | 316, 317, A4 Stainless | Plain | 1/4-20 | square nuts 316 ss 1/4-20 | 1981 |
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Raw Produ | NJ | Square Nut | Grade 2 | Galvanized | 1/4-20 | square nuts hdg grade 2-1/4-20 | 229 |
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Raw Produ | NJ | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 | square nuts 304 ss 1/4-20 (beveled) | 786 |
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Alma Bolt | MI | Square Nut | Steel | Zinc/Clear | 1/4-20 | 1/4-20 zinc plated square nut | 264 |
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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 | 3,000 |
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FMP | MA | Square Nut | Steel | Plain | 1/4-24 | square m/s nut | 17630 |
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American | NY | Square Nut | Steel | Zinc/Clear | 1/4-28 | square nut pl | 420 |
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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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Alma Bolt | MI | Square Nut | Plain | 1/4-7 | 1 1/4-7 | square nut | 25 |
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CNB | IL | Square Nut | Grade 2H | Galvanized | 1/4-8 | 2 1/4-8 square nut a194 grade 2h hot dipped galvanized to astm a-153 | 15 |
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Jackson | MS | Square Nut | Steel | Zinc/Clear | 1/4 | nc square nut | 7933 |
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OneMonroe | NC | Square Nut | Steel | Plain | 1/4 x 47/64 | 3/4-10 heavy square nut 1 1/4 x 47/64 stl | 74 |
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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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