5/8 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.
96 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 | |
Ababa | CA | Square Nut | Steel | Plain | 5/8-11 | 5/8-11 sq nut stl pln b18.2.2 | 100 |
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Ababa | CA | Square Nut | Steel | Plain | 5/8-11 | 5/8-11 sq nut stl pln b18.2.2 | 50 |
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Ababa | CA | Square Nut | Steel | Zinc/Clear | 5/8-11 | 5/8-11 sq nut stl znc b18.2.2 | 15 |
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Weaver | WA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 | 5/8-11 square nut 18-8 ss | 19 |
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American | NY | Square Nut | Steel | Plain | 5/8-11 | square nut | 125 |
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American | NY | Square Nut | Steel | Galvanized | 5/8-11 | square nut hdg | 200 |
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B & K FAST | PA | Square Nut | Steel | Plain | 5/8-11 | 5/8-11 square nuts plain b18.2.2 | 933 |
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SII | IN | Square Nut | Grade A | Plain | 5/8-11 | 5/8-11 grade a plain finish steel regular square nut b18.2.2 | 46 |
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American | NY | Square Nut | Steel | Plain | 5/8-11 | square nut black | 40 |
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QFC | TX | Square Nut | Steel | Plain | 5/8-11 | 5/8-11 square nut plain finish b18.2.2 | 236 |
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QFC | TX | Square Nut | Steel | Plain | 5/8-11 | 5/8-11 square nut plain finish b18.2.2 | 14 |
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METRO IND | OH | Square Nut | Steel | Zinc/Clear | 5/8-11 | square nut uss | 252 |
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YANKEE | NH | Square Nut | Steel | Galvanized | 5/8-11 | square nut hot-dipped | 350 |
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ACCURATE | IL | Square Nut | Steel | Zinc/Clear | 5/8-11 | square nut regular | 1854 |
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MESAFAST | CA | Square Nut | Steel | Zinc/Clear | 5/8-11 | square nut | 21.0 |
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HBBOLT | CA | Square Nut | Steel | Galvanized | 5/8-11 | square nut h.d.galv. | 20 |
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HBBOLT | CA | Square Nut | Brass | Plain | 5/8-11 | square nut special order made to sample specs special order made to sample specs | 4 |
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Endries | WI | Square Nut | Steel | Zinc/Clear | 5/8-11 | 5/8-11 square nut zinc | 125 |
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Wurth Ada | MN | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 | nut sq s/s (18 8) (pl) 5/8-11 | 100 |
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SunPack | FL | Square Nut | Steel | Zinc/Clear | 5/8-11 | 5/8-11 carbon steel square nut zinc | 20 |
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GLF | OH | Square Nut | Steel | Plain | 5/8-11 | 5/8-11 square nut stl pln b18.2.2 () () () | 1400 |
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ScrewsInc | OH | Square Nut | Steel | Plain | 5/8-11 | 300 |
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SIS | AZ | Square Nut | Grade 5 | Galvanized | 5/8-11 | 5/8-11 square nut gr. 5 steel galv | 4052 |
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NAPPCO | TX | Square Nut | Steel | Plain | 5/8-11 | square nut steel 5/8-11 | 50 |
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THRDFAST | OK | Square Nut | Steel | Plain | 5/8-11 | square nut b18.2.2 | 173 |
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UNEEDA | NJ | Square Nut | Steel | Plain | 5/8-11 | regular square nut | 300 |
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ISSCO | MO | Square Nut | Steel | Galvanized | 5/8-11 | regular h/d | 560 |
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ISSCO | MO | Square Nut | Steel | Plain | 5/8-11 | heavy | 200 |
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Lippin | CA | Square Nut | Steel | Zinc/Clear | 5/8-11 | 5/8-11 square nut zinc | 546 |
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Lippin | CA | Square Nut | Steel | Galvanized | 5/8-11 | 5/8-11 square nut hdg | 3151 |
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Lippin | CA | Square Nut | Steel | Plain | 5/8-11 | 5/8-11 square nut plain | 261 |
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SRF | AL | Square Nut | Steel | Zinc/Clear | 5/8-11 | square nut | - |
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Endries | WI | Square Nut | Grade 5 | Plain | 5/8-11 | 5/8-11 gr5 heavy square nut plain | 50 |
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NutsBolts | NE | Square Nut | Steel | Zinc/Clear | 5/8-11 | 5/8-11 square nut zp | 100 |
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NutsBolts | NE | Square Nut | Steel | Plain | 5/8-11 | 5/8-11 square nut plain | 2431 |
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Cal Fastenrs | CA | Square Nut | Steel | Plain | 5/8-11 | square nut sq nut | 40 |
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Jackson | MS | Square Nut | Steel | Zinc/Clear | 5/8-11 | nc square nut pattern | 168 |
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OBRIEN | OH | Square Nut | Steel | Zinc/Clear | 5/8-11 | sq nut | 200 |
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Delta | TX | Square Nut | Steel | Plain | 5/8-11 | fin square nut plain 5/8-11 | 111 |
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Delta | TX | Square Nut | Steel | Zinc/Clear | 5/8-11 | fin square nut zinc 5/8-11 | 74 |
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Delta | TX | Square Nut | Steel | Galvanized | 5/8-11 | square nut w/spec bevel hdg 5/8-11 (WITH CENTERS CONVAVE (1 SQUARE X 1/4 THICK)) | 396 |
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Delta | TX | Square Nut | Steel | Zinc/Clear | 5/8-11 | hvy square nut zinc 5/8-11 | 984 |
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All Size | TX | Square Nut | Steel | Galvanized | 5/8-11 | 5/8-11 square nut galv b18.2.2 | 498 |
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THRDFAST | MS | Square Nut | Steel | Zinc/Clear | 5/8-11 | square nut b18.2.2 | 16 |
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SWACO | OH | Square Nut | Grade 2 | Galvanized | 5/8-11 | 5/8-11 sq nuts grade 2 hdg | 195 |
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CNB | IL | Square Nut | Grade 2 | Plain | 5/8-11 | square nut | 48 |
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FMP | MA | Square Nut | Steel | Plain | 5/8-11 | square bolt nut | 2000 |
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QFC | TX | Square Nut | Grade A | Galvanized | 5/8-11 | 5/8-11 square nut a563 gr. a galvanized b18.2.2 | 190 |
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Komar | MO | Square Nut | Steel | Zinc/Clear | 5/8-11 reg square nut(1 x 35/64) zinc | 200 |
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BHAM | AL | Square Nut | Steel | Plain | 5/8-11 x 3 | 5/8-11x3 sq antiro t-hd w/nut c111 b18.2.2 | 75 |
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ZAL INDUS | CA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 | 5/8-11 square nut 18-8stn. | 29 |
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ZAL INDUS | CA | Square Nut | Steel | Galvanized | 5/8-11 | 5/8-11 square nut h.d.g. | 335 |
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WDMB | IA | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 | nut sq sst (18 8) (pl) 5/8-11 (W000) | 100 |
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FastWare | Sask | Square Nut | Grade 5 | Plain | 5/8-11 | nc heavy square nut | 100 |
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FastWare | Sask | Square Nut | Grade 2 | Galvanized | 5/8-11 | nc square nut hdg | 84 |
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FastWare | Sask | Square Nut | Grade 2 | Plain | 5/8-11 | nc square nut | 50 |
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ASMC | IL | Square Nut | Grade 2 | Plain | 5/8-11 | coarse gr2 regular square nut low carb | 559 |
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Alma Bolt | MI | Square Nut | Steel | Galvanized | 5/8-11 | hdg square nut | 500 |
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KBS | TN | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 | 5/8-11 regular squarenut s/s b18.2.2 | 50 |
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Kanebridge | IL | Square Nut | Steel | Galvanized | 5/8-11 | 5/8-11 regular square nut hot dipped galvanized | 5,000 |
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Kanebridge | IL | Square Nut | Steel | Plain | 5/8-11 | 5/8-11 heavy square nut plain | 5,000 |
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Kanebridge | IL | Square Nut | Steel | Zinc/Clear | 5/8-11 | 5/8-11 regular square nut zinc | 5,000 |
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Liberty | IL | Square Nut | Steel | Plain | 5/8-11 | regular square nut plain | 182 |
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HBBOLT | CA | Square Nut | Steel | Zinc/Clear | 5/8-11 | square nut | 577 |
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Komar | AR | Square Nut | Steel | Plain | 5/8-11 | reg square nut(1 x 35/64) | 846 |
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XL Screw | GA | Square Nut | Steel | Plain | 5/8-11 | regular square nuts | 450 |
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XL Screw | GA | Square Nut | Steel | Zinc/Clear | 5/8-11 | regular square nuts zp | 450 |
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XL Screw | GA | Square Nut | Steel | Plain | 5/8-11 | heavy square nuts | 300 |
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Perigee | MI | Square Nut | Steel | Plain | 5/8-11 x 1 x 35/64 | 5/8-11 x 1 x 35/64 square nut b18.2.2 | 33 |
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API | IA | Square Nut | Grade 2 | Zinc/Clear | 5/8-11 | nut hvy sq 5/8-11 gr2 zncl jds | 143 |
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Hayes | CA | Square Nut | Steel | Plain | 5/8-11 | 5/8-11 square nut pln | 764 |
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OSSCO | RI | Square Nut | Steel | Plain | 5/8-11 | 5/8-11 square nut b18.2.2 | 1,096 |
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Irwin Ind | Ont | Square Nut | Grade 2 | Zinc/Clear | 5/8-11 | 5/8-11 square nut grade 2 zinc plated b18.2.2 | 300 |
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SunPack | FL | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 square nut 18-8 ss | 44 |
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THRDFAST | AL | Square Nut | Steel | Galvanized | 5/8-11 | square nut hdg b18.2.2 | 23000 |
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Olander | CA | Square Nut | Steel | Zinc/Clear | 5/8-11 sq nut stl zn non-rohs | 5 |
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Century | NY | Square Nut | Steel | Plain | 5/8-11 square m/s nut plain | 200 |
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THRDFAST | FL | Square Nut | Steel | Plain | 5/8-11 | square nut b18.2.2 | 17 |
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Hodell | OH | Square Nut | Steel | Zinc/Clear | 5/8-11 | 5/8-11 reg square nut zinc | 350 |
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Komar | IL | Square Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8-11 | 5/8-11 regular square nut (1x35/64) 18-8 ss | 1037 |
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THRDFAST | OK | Square Nut | Steel | Zinc/Clear | 5/8-11 | square nut b18.2.2 | 30 |
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Valley Nu | WA | Square Nut | Steel | Zinc/Black | 5/8-11 | nc regular square nut zb | 56 |
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Fastener | OH | Square Nut | Steel | Plain | 5/8-11 | square nut 5/8-11 plain steel | 347 |
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THRDFAST | OK | Square Nut | Steel | Plain | 5/8-11 | square nut tapped .02 oversize b18.2.2 | 1 |
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Fastener | OH | Square Nut | Steel | Zinc/Clear | 5/8-11 | square nut 5/8-11 zinc plated | 434 |
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Hodell | OH | Square Nut | Steel | Zinc/Clear | 5/8-11 | 5/8-11 reg square nut zinc | 350 |
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Fastener | OH | Square Nut | Grade 2 | Galvanized | 5/8-11 | square nut 5/8-11 grade 2 hot dipped galvanized | 385 |
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JET FITTING | CA | Square Nut | Grade 2 | Plain | 5/8-11 | 5/8-11 sq nuts grade 2 pln ARS200625C b18.2.2 | 400 |
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Valley Nu | WA | Square Nut | Steel | Plain | 5/8-11 | nc square nut | 365 |
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Valley Nu | WA | Square Nut | Steel | Galvanized | 5/8-11 | nc square nut hdg | 1648 |
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Hodell | OH | Square Nut | Steel | Zinc/Clear | 5/8-11 | 5/8-11 reg square nut zinc | 350 |
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JET FITTING | CA | Square Nut | Grade 2 | Galvanized | 5/8-11 | 5/8-11 sq nuts grade 2 hdg 238040 b18.2.2 | 195 |
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SWACO | OH | Square Nut | Grade 2 | Plain | 5/8-11 | 5/8-11 sq nuts grade 2 pln | 400 |
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CNB | IL | Square Nut | Grade 2 | Plain | 5/8-18 | square nut gr.2 | 49 |
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Lufasco, | GA | Square Nut | Brass | Plain | 5/8-8 | 5/8-8 square acme nut 1 af, 5/8 thick brass | 150 |
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XL Screw | GA | Square Nut | Steel | Galvanized | 5/8-11 .020 o.s. | regular square nuts hdg | 450 |
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