Dia/Thread Size
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Square Nuts

Square nuts have a large surface area, which resists tightening and loosening. Square nuts are commonly used in furniture, metal channels, and railroad applications.


Material : Brass
Grade : Undefined
System of Measurement: Imperial (Inch)
System of Measurement: Imperial (Inch)
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
1/4"-20 7/16" 7/32" Plain 0170862 EA Call for Price
Material : Stainless Steel
Grade : 18-8
System of Measurement: Imperial (Inch)
System of Measurement: Imperial (Inch)
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
#4-40 1/4" 0.098" Plain 0170846 EA 0.41
#6-32 5/16" 0.114" Plain 0170847 EA 0.23
#8-32 11/32" 0.130" Plain 0170848 EA 0.35
#10-24 3/8" 0.130" Plain 0170849 EA 0.56
#10-32 3/8" 0.130" Plain 0170850 EA 0.22
1/4"-20 7/16" 7/32" Plain 0170851 EA 0.52
5/16"-18 9/16" 17/64" Plain 0170852 EA 0.47
3/8"-16 5/8" 21/64" Plain 0170853 EA 2.16
1/2"-13 13/16" 7/16" Plain 0170854 EA 3.30
5/8"-11 1" 35/64" Plain 0170855 MPK 15897.20
3/4"-10 1-1/8" 21/32" Plain 0170856 EA 46.35
7/8"-9 1-5/16" 49/64" Plain 0170857 MPK 26870.00
Material : Stainless Steel
Grade : 316
System of Measurement: Imperial (Inch)
System of Measurement: Imperial (Inch)
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
5/16"-18 9/16" 17/64" Plain 0177897 EA 1.66
3/8"-16 5/8" 21/64" Plain 0177898 EA 9.39
1/2"-13 13/16" 7/16" Plain 0177899 EA 15.37
Material : Steel
Grade : 5
System of Measurement: Imperial (Inch)
System of Measurement: Imperial (Inch)
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
1/4"-20 1/2" 1/4" Plain 0169928 EA 1.46
5/16"-18 9/16" 17/64" Plain 0169941 EA 0.34
3/8"-16 5/8" 21/64" Plain 0169942 EA 0.76
1/2"-13 13/16" 7/16" Plain 0169944 EA 1.04
1/2"-13 7/8" 1/2" Plain 0169931 EA 1.74
5/8"-11 1" 35/64" Plain 0169945 EA 2.72
5/8"-11 1-1/16" 5/8" Plain 0169932 EA 5.42
3/4"-10 1-1/8" 21/32" Plain 0169946 EA 3.12
3/4"-10 1-1/8" 21/32" Zinc 0169958 EA 3.61
3/4"-10 1-1/4" 3/4" Plain 0169933 EA 12.41
7/8"-9 1-5/16" 49/64" Plain 0169947 EA 5.29
1"-8 1-5/8" 1" Plain 0169935 EA 28.08
1-1/8"-7 1-13/16" 1-1/8" Plain 0169936 EA 21.93
1-1/4"-7 1-7/8" 1-3/32" Plain 0169950 EA 23.23
1-1/4"-7 2" 1-1/4" Plain 0169937 EA 23.31
1-1/2"-6 2-1/4" 1-5/16" Plain 0169951 EA 25.87
System of Measurement: Metric
System of Measurement: Metric
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
M6-1.0 10mm 5mm Zinc 0161910 EA 0.21
M8-1.25 13mm 5.75mm - 7.25mm Zinc 0161911 EA 0.34
M10-1.5 17mm 5mm Zinc 0161912 EA 0.65
Material : Steel
Grade : 8
System of Measurement: Imperial (Inch)
System of Measurement: Imperial (Inch)
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
1/2"-13 13/16" 7/16" Plain 0169963 EA 1.44
Material : Steel
Grade : A
System of Measurement: Imperial (Inch)
System of Measurement: Imperial (Inch)
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
1/4"-20 7/16" 7/32" Plain 37619 EA 0.09
1/4"-20 7/16" 7/32" Zinc 37620 EA 0.09
1/4"-20 7/16" 7/32" Zinc 1137620 PKG 4.60
1/4"-20 7/16" 7/32" Hot Dip Galvanized 0189527 EA 0.15
1/4"-28 7/16" 7/32" Plain 37651 EA 2.31
1/4"-28 7/16" 7/32" Zinc 37652 EA 0.15
5/16"-18 9/16" 17/64" Plain 37621 EA 0.16
5/16"-18 9/16" 17/64" Zinc 1137622 PKG 8.12
5/16"-18 9/16" 17/64" Zinc 37622 EA 0.16
5/16"-18 9/16" 17/64" Hot Dip Galvanized 0189528 EA 0.65
3/8"-16 5/8" 21/64" Plain 37623 EA 0.25
3/8"-16 5/8" 21/64" Zinc 1137624 PKG 13.02
3/8"-16 5/8" 21/64" Zinc 37624 EA 0.26
3/8"-16 5/8" 21/64" Hot Dip Galvanized 0189529 EA 0.66
3/8"-24 5/8" 21/64" Zinc 37656 EA 0.33
7/16"-14 3/4" 3/8" Plain 37625 EA 0.44
7/16"-14 3/4" 3/8" Zinc 37626 EA 0.46
1/2"-13 13/16" 7/16" Plain 37627 EA 0.47
1/2"-13 13/16" 7/16" Zinc 37628 EA 0.53
1/2"-13 13/16" 7/16" Zinc 1137628 PKG 13.04
1/2"-13 13/16" 7/16" Hot Dip Galvanized 0189530 EA 1.24
1/2"-20 13/16" 7/16" Plain 37659 EA 2.52
5/8"-11 1" 35/64" Plain 37631 EA 1.00
5/8"-11 1" 35/64" Zinc 1137632 PKG 12.20
5/8"-11 1" 35/64" Zinc 37632 EA 0.94
5/8"-11 1" 35/64" Hot Dip Galvanized 0189531 EA 2.20
9/16"-12 7/8" 1/2" Plain 37629 EA 13.43
3/4"-10 1-1/8" 21/32" Plain 37633 EA 1.29
3/4"-10 1-1/8" 21/32" Zinc 1137634 PKG 15.20
3/4"-10 1-1/8" 21/32" Zinc 37634 EA 1.70
3/4"-10 1-1/8" 21/32" Hot Dip Galvanized 0189532 EA 3.41
7/8"-9 1-5/16" 49/64" Plain 37635 EA 2.16
7/8"-9 1-5/16" 49/64" Zinc 37636 EA 1.30
7/8"-9 1-5/16" 49/64" Zinc 1137636 PKG 13.45
7/8"-9 1-5/16" 49/64" Hot Dip Galvanized 0189533 EA 8.44
1"-8 1-1/2" 7/8" Plain 37637 EA 3.53
1"-8 1-1/2" 7/8" Zinc 37638 EA 3.83
1"-8 1-1/2" 7/8" Hot Dip Galvanized 0189534 EA 5.24
1-1/8"-7 1-11/16" 1" Plain 37639 EA 7.46
1-1/8"-7 1-11/16" 1" Zinc 37640 EA 0.33
1-1/4"-7 1-7/8" 1-3/32" Plain 37641 EA 7.07
1-1/4"-7 1-7/8" 1-3/32" Zinc 37642 EA 8.76
1-1/2"-6 2-1/4" 1-5/16" Plain 37645 EA 12.61
1-1/2"-6 2-1/4" 1-5/16" Zinc 37646 EA 17.07
2"-4.5 3" 1-3/4" Plain 0169939 EA 185.61
Material : Steel
Grade : Class 04
System of Measurement: Metric
System of Measurement: Metric
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
M3-0.5 5.5mm 1.8mm Zinc 0161907 EA 0.18
M3-0.5 5.5mm 1.8mm Zinc 11510909 EA 0.09
M4-0.7 7mm 2.7mm Zinc 11510910 EA 0.18
M5-0.8 8mm 2.7mm Zinc 11510911 EA 0.24
M6-1.0 10mm 3.2mm Zinc 11510912 EA 0.44
M8-1.25 13mm 3.52mm - 4.00mm Zinc 11510913 EA 0.55
Material : Steel
Grade : Class 4.6
System of Measurement: Metric
System of Measurement: Metric
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
M4-0.7 7mm 3mm Zinc 0161908 PKG 41.76
M5-0.8 8mm 4mm Zinc 0161909 EA 0.16
M12-1.75 19MM 10mm Zinc 11509257 EA 1.16
Material : Steel
Grade : 2
System of Measurement: Imperial (Inch)
System of Measurement: Imperial (Inch)
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
5/16"-18 9/16" 5/16" Plain 0169919 EA 0.85
3/8"-16 11/16" 3/8" Plain 0169920 EA 1.44
1/2"-13 7/8" 1/2" Plain 0169921 EA 1.44
3/4"-10 1-1/4" 3/4" Plain 0169923 PKG 908.00
1"-8 1-5/8" 1" Plain 0169925 EA 18.73
Material : Steel
Grade : Low Carbon
System of Measurement: Imperial (Inch)
System of Measurement: Imperial (Inch)
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
#4-40 1/4" 0.098" Plain 37605 EA 7.86
#4-40 1/4" 0.098" Zinc 37606 EA 0.06
#5-40 5/16" 0.114" Plain 37607 EA 6.86
#5-40 5/16" 0.114" Zinc 37608 EA 0.14
#6-32 5/16" 0.114" Plain 37609 EA 0.04
#6-32 5/16" 0.114" Zinc 37610 EA 0.07
#8-32 11/32" 0.130" Plain 37611 EA 0.03
#8-32 11/32" 0.130" Zinc 37612 EA 0.08
#10-24 3/8" 0.130" Plain 37613 EA 0.08
#10-24 3/8" 0.130" Zinc 37614 EA 0.07
#10-32 3/8" 0.130" Plain 37615 EA 0.05
#10-32 3/8" 0.130" Zinc 37616 EA 0.07
#12-24 7/16" 0.161" Plain 37617 EA 0.09
#12-24 7/16" 0.161" Zinc 37618 EA 0.09
Material : Undefined
Grade : Undefined
System of Measurement: Imperial (Inch)
System of Measurement: Imperial (Inch)
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
Dia/Thread Size Wrench Size Thickness Finish SKU Pkg Qty Price
1/2"-13 0573120 EA 1014.48
3/4"-10 0573122 EA 1240.82