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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.

107 results, (click on any line for more information)

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
JacksonMSSquare NutSteelGalvanized3/4nc square nut hdg141
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JacksonMSSquare NutSteelPlain7/16nc square nut28
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JacksonMSSquare NutSteelPlain7/8nc square nut116
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JacksonMSSquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-3218-8 304 square nut square nut 18-8 304100
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JacksonMSSquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-3218-8 304 square nut square nut 18-8 30492
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JacksonMSSquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-3218-8 304 square nut square nut 18-8 30475
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JacksonMSSquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13nc 18-8 304 square nut22
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JacksonMSSquare NutSteelZinc/Clear#10-24nc square nut7056
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JacksonMSSquare NutSteelZinc/Clear#10-32nf square nut193
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JacksonMSSquare NutSteelZinc/Clear1/4nc square nut7941
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JacksonMSSquare NutSteelZinc/Clear5/16nc square nut6639
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JacksonMSSquare NutSteelZinc/Clear3/8nc square nut1947
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JacksonMSSquare NutSteelZinc/Clear1/2nc square nut881
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JacksonMSSquare NutSteelPlain3/4nc heavy square nut9
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MAINSOURCNHSquare NutSteelPlain1/4-201/4-20 square nut stl1780
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MAINSOURCNHSquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 square nut 18-8 ss218
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MAINSOURCNHSquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 square nut 18-8 ss10
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WeaverWASquare NutSteelPlain5-.85-.8 square nut plain175
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WeaverWASquare NutSteelPlain#10-2410-24 square nut plain364
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WeaverWASquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-3210-32 square nut 18-8 ss107
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WeaverWASquare NutSteelZinc/Clear#10-3210-32 square nut zinc45
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WeaverWASquare NutSteelPlain1/4-201/4-20 square nut plain2575
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WeaverWASquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-201/4-20 square nut 18-8 ss416
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WeaverWASquare NutSteelZinc/Clear1/4-201/4-20 square nut zinc2200
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WeaverWASquare NutSteelPlain5/16-185/16-18 square nut plain200
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WeaverWASquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 square nut 18-8 ss33
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WeaverWASquare NutSteelZinc/Clear5/16-185/16-18 square nut zinc11800
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WeaverWASquare NutSteelPlain3/8-163/8-16 square nut plain226
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WeaverWASquare NutSteelZinc/Clear3/8-163/8-16 square nut zinc4350
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WeaverWASquare NutSteelPlain7/16-147/16-14 square nut plain207
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WeaverWASquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 square nut 18-8 ss106
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WeaverWASquare NutSteelZinc/Clear1/2-131/2-13 square nut zinc1140
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WeaverWASquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-115/8-11 square nut 18-8 ss19
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WeaverWASquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/4-103/4-10 square nut 18-8 ss22
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WeaverWASquare NutSteelZinc/Clear3/4-103/4-10 square nut zinc2805
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WeaverWASquare NutSteelPlain7/8-97/8-9 square nut plain58
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WeaverWASquare NutSteelPlain1 1/8-71 1/8-7 square nut plain82
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YANKEENHSquare NutSteelZinc/Clear#10-2410-24 square nut zinc pltd1164
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YANKEENHSquare NutBrassPlain#10-3210-32 square nut brass60
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YANKEENHSquare NutSteelZinc/Clear1/4-201/4-20 square nut (7/16 acrflts) steel zinc plated312
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YANKEENHSquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-201/4-20 square nut (7/16 wide) 18-8 stainless steel66
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YANKEENHSquare NutSteelPlain5/16-185/16-18 square nut (9/16 wide) plain steel99
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YANKEENHSquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 square nut (5/8 wide) 18-8 stainless steel104
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YANKEENHSquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 square nut (13/16 wd x 7/16 ht) 18-8 stainless steel24
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YANKEENHSquare NutSteelZinc/Clear3/4-103/4-10 square nut zinc pltd114
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YANKEENHSquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-328-32 square nut stain steel100
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YANKEENHSquare NutSteelZinc/ClearM2-0.40m2(.4) square nut zinc pltd191
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YANKEENHSquare NutSteelZinc/ClearM8-1.25m8(1.25) square nut zinc pltd268
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Jay-CeeMISquare NutSteelPhosphate5/16-185/16-18 square machine screw nut black phos34590
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AbabaCASquare NutSteelZinc/ClearM4-0.70m4-.7 square nut steel znc pltd (din 562)2750
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AbabaCASquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM6-1.00m6-1.0 square nut (din 557) stainless steel1800
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AbabaCASquare NutSteelGalvanized1-81-8 sq nut stl hdg b18.2.2198
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AbabaCASquare NutSteelZinc/Clear1-81-8 sq nut stl znc b18.2.210
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AbabaCASquare NutSteelZinc/Clear#10-2410-24 sq nut stl znc b18.2.23500
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AbabaCASquare NutSteelZinc/Clear#10-2410-24 sq nut stl znc b18.2.2100
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AbabaCASquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-3210-32 sq nut s/s b18.2.2692
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AbabaCASquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-3210-32 sq nut s/s b18.2.2100
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AbabaCASquare NutSteelZinc/Clear#10-3210-32 sq nut stl znc b18.2.21205
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AbabaCASquare NutSteelZinc/Clear#10-3210-32 sq nut stl znc b18.2.2600
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AbabaCASquare NutSteelPlain1 1/8-71 1/8-7 sq nut stl pln b18.2.25
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AbabaCASquare NutSteelPlain1 1/4-71 1/4-7 sq nut stl pln b18.2.21
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AbabaCASquare NutSteelPlain1 1/2-61 1/2-6 sq nut stl pln b18.2.24
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AbabaCASquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-201/4-20 sq nut s/s b18.2.213500
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AbabaCASquare Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-201/4-20 sq nut s/s b18.2.2300
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AbabaCASquare NutSteelGalvanized1/4-201/4-20 sq nut stl hdg b18.2.274
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AbabaCASquare NutSteelPlain1/4-201/4-20 sq nut stl pln b18.2.2575
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AbabaCASquare NutSteelBlack Oxide1/4-201/4-20 sq nut stl blk ox wax b18.2.2978
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AbabaCASquare NutSteelZinc/Clear1/4-201/4-20 sq nut stl znc b18.2.22888
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AbabaCASquare NutSteelZinc/Clear1/4-201/4-20 sq nut stl znc b18.2.291
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Set ScrewILSquare NutSteelZinc/Yellow3/8-16(1 x3 x1/4) flat rectangular nut & plateinquire
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ACCURATEILSquare NutSteelPlain1 1/2-61 1/2-6 square nut regular plain33
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ACCURATEILSquare NutSteelPhosphate3/8c12009-014-4 .375 rectangular black phos (tinnerman type nut old# c13727-014-4)184
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ACCURATEILSquare NutSteelPlain5/16-18square nut regular1200
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AmericanNYSquare NutSteelPlain1/2-13square nut10
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AmericanNYSquare NutSteelZinc/Clear1/2-13square nut zp650
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AmericanNYSquare NutSteelZinc/Clear1/4-201/4-20 square nut zp4000
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SIIINSquare NutSteelPlain1-81-8 plain square nut b18.2.2125
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SIIINSquare NutGrade 2Plain3/4-103/4-10 square nuts grade 2 plain b18.2.2100
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RePneu ToMISquare NutGrade 2Zinc/Clear1/4-201/4-20 square nuts grade 2 zinc5000
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Lubker DiPASquare NutSteelPlain2 1/2-42 1/2-4 hvy square nut pln5
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TSFTXSquare NutSteelPlain1-8square nut carbon steel plain 1-811
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TSFTXSquare NutGrade APlain5/16-18square heavy nut low carbon steel gr a plain 5/16-18600
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JET FITTINGCASquare NutSteelPlain3/816nut square 3/816 steel plain b18.2.2900
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JET FITTINGCASquare NutGrade 2Zinc/Clear1/2-13nut square 1/2-13 grade 2 steel zinc plated b18.2.2200
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CNBILSquare NutGrade 5Plain1-8heavy square nut, ,18
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CNBILSquare NutSteelZinc/Clear1/4-281/4-28 square nut 12l14 per drawing # 8140537 rev c plate per spec #2030 spap approved5
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