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 : 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 0.46
#8-32 11/32" 0.130" Plain 0170848 EA 0.49
#10-24 3/8" 0.130" Plain 0170849 EA 0.34
#10-32 3/8" 0.130" Plain 0170850 EA 0.22
1/4"-20 7/16" 7/32" Plain 0170851 EA 0.72
5/16"-18 9/16" 17/64" Plain 0170852 EA 0.59
3/8"-16 5/8" 21/64" Plain 0170853 EA 1.33
1/2"-13 13/16" 7/16" Plain 0170854 EA 4.08
5/8"-11 1" 35/64" Plain 0170855 MPK 14762.00
3/4"-10 1-1/8" 21/32" Plain 0170856 EA 41.90
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
3/8"-16 5/8" 21/64" Plain 0177898 EA 5.77
1/2"-13 13/16" 7/16" Plain 0177899 EA 16.35
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 2.05
5/16"-18 9/16" 17/64" Plain 0169941 EA 0.47
3/8"-16 5/8" 21/64" Plain 0169942 EA 0.97
1/2"-13 13/16" 7/16" Plain 0169944 EA 1.17
1/2"-13 7/8" 1/2" Plain 0169931 EA 1.72
5/8"-11 1" 35/64" Plain 0169945 EA 1.91
5/8"-11 1-1/16" 5/8" Plain 0169932 EA 3.05
3/4"-10 1-1/8" 21/32" Zinc 0169958 EA 3.39
3/4"-10 1-1/4" 3/4" Plain 0169933 EA 8.86
7/8"-9 1-5/16" 49/64" Plain 0169947 EA 5.77
1-1/8"-7 1-13/16" 1-1/8" Plain 0169936 EA 22.03
1-1/4"-7 1-7/8" 1-3/32" Plain 0169950 EA 26.84
1-1/4"-7 2" 1-1/4" Plain 0169937 EA 32.38
1-1/2"-6 2-1/4" 1-5/16" Plain 0169951 EA 21.81
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 0.29
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 1.51
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 2137620 PKG 3.50
1/4"-20 7/16" 7/32" Zinc 37620 EA 0.08
1/4"-20 7/16" 7/32" Zinc 1137620 PKG 6.58
5/16"-18 9/16" 17/64" Plain 37621 EA 0.17
5/16"-18 9/16" 17/64" Zinc 1137622 PKG 11.93
5/16"-18 9/16" 17/64" Zinc 2137622 PKG 3.50
5/16"-18 9/16" 17/64" Zinc 37622 EA 0.14
3/8"-16 5/8" 21/64" Plain 37623 EA 0.30
3/8"-16 5/8" 21/64" Zinc 37624 EA 0.24
3/8"-16 5/8" 21/64" Zinc 1137624 PKG 14.34
3/8"-16 5/8" 21/64" Zinc 2137624 PKG 3.50
3/8"-16 5/8" 21/64" Hot Dip Galvanized 0189529 EA 0.59
7/16"-14 3/4" 3/8" Plain 37625 EA 0.58
7/16"-14 3/4" 3/8" Zinc 37626 EA 0.50
1/2"-13 13/16" 7/16" Plain 37627 EA 0.49
1/2"-13 13/16" 7/16" Zinc 37628 EA 0.53
1/2"-13 13/16" 7/16" Zinc 1137628 PKG 15.12
1/2"-13 13/16" 7/16" Zinc 2137628 PKG 3.51
1/2"-13 13/16" 7/16" Hot Dip Galvanized 0189530 EA 1.26
5/8"-11 1" 35/64" Plain 37631 EA 1.06
5/8"-11 1" 35/64" Zinc 1137632 PKG 15.40
5/8"-11 1" 35/64" Zinc 2137632 PKG 3.50
5/8"-11 1" 35/64" Zinc 37632 EA 0.92
5/8"-11 1" 35/64" Hot Dip Galvanized 0189531 EA 3.05
3/4"-10 1-1/8" 21/32" Plain 37633 EA 1.54
3/4"-10 1-1/8" 21/32" Zinc 1137634 PKG 18.80
3/4"-10 1-1/8" 21/32" Zinc 2137634 EA 3.50
3/4"-10 1-1/8" 21/32" Zinc 37634 EA 1.41
3/4"-10 1-1/8" 21/32" Hot Dip Galvanized 0189532 EA 4.74
7/8"-9 1-5/16" 49/64" Plain 37635 EA 2.48
7/8"-9 1-5/16" 49/64" Zinc 1137636 PKG 17.35
7/8"-9 1-5/16" 49/64" Zinc 37636 EA 2.57
7/8"-9 1-5/16" 49/64" Hot Dip Galvanized 0189533 EA 12.10
1"-8 1-1/2" 7/8" Plain 37637 EA 4.34
1"-8 1-1/2" 7/8" Zinc 37638 EA 4.76
1"-8 1-1/2" 7/8" Hot Dip Galvanized 0189534 EA 5.10
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 7.94
1-1/4"-7 1-7/8" 1-3/32" Zinc 37642 EA 9.69
2"-4.5 3" 1-3/4" Plain 0169939 EA 124.43
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
M4-0.7 7mm 2.7mm Zinc 11510910 EA 0.23
M5-0.8 8mm 2.7mm Zinc 11510911 EA 0.29
M8-1.25 13mm 3.52mm - 4.00mm Zinc 11510913 EA 0.58
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
M12-1.75 19MM 10mm Zinc 11509257 EA 1.78
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
3/8"-16 11/16" 3/8" Plain 0169920 EA 1.23
1/2"-13 7/8" 1/2" Plain 0169921 EA 1.91
3/4"-10 1-1/4" 3/4" Plain 0169923 PKG 765.00
1"-8 1-5/8" 1" Plain 0169925 EA 12.81
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" Zinc 37606 EA 0.19
#5-40 5/16" 0.114" Zinc 37608 EA 0.30
#6-32 5/16" 0.114" Plain 37609 EA 0.04
#6-32 5/16" 0.114" Zinc 37610 EA 0.05
#8-32 11/32" 0.130" Zinc 37612 EA 0.08
#10-24 3/8" 0.130" Plain 37613 EA 0.09
#10-24 3/8" 0.130" Zinc 37614 EA 0.07
#10-32 3/8" 0.130" Plain 37615 EA 0.06
#10-32 3/8" 0.130" Zinc 37616 EA 0.10
#12-24 7/16" 0.161" Zinc 37618 EA 0.13
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 1115.93
3/4"-10 0573122 EA 1364.90