Stainless Steel Square Nuts

Four-Sided Square Nuts in Corrosion Resistant Stainless Steel

Four sided square nut
Available in UNC Coarse and UNF Fine thread sizes
Greater resistance to loosening
More contact with surface of fastener
Less likely to lose their shape from constant loosening/tightening
Use with a flat washer to avoid damage from sharp edges
Square Nuts up to #8 are flat on both sides
1/4" and up are beveled on one side
Sizes listed below as: Internal Diameter - Thread Pitch

Size	Across Flats (Max-Min)	Thickness (Max-Min)	Square Shape
#4	0.250-0.241	0.098-0.087	Flat
#6	0.312-0.302	0.114-0.102	Flat & Beveled
#8	0.344-0.310	0.130-0.117	Beveled
#10	0.375-0.362	0.130-0.117	Beveled
1/4"	0.438-0.423	0.193-0.178	Flat & Beveled
5/16"	0.562-0.545	0.225-0.208	Beveled
3/8"	0.625-0.607	0.257-0.239	Beveled
1/2"	0.812-0.788	0.458-0.418	Beveled
5/8"	1.000-0.969	0.569-0.525	Beveled
3/4"	1.125-1.088	0.680-0.632	Beveled

This item qualifies for FREE SHIPPING on orders $250+

Select Products Below See Product Specifications

NA = "Not Sold In Single Quantity"

Select Package Quantity

Square Nut 304 Stainless Steel - #4/40

SKU #590002

1
NA

25
$5.00 (0.2/ea)

100
$13.00 (0.13/ea)

1000
$120.00 (0.12/ea)

Subtotal: $0.00 /

Square Nut 304 Stainless Steel - #6/32

SKU #590012

1
NA

25
$5.50 (0.22/ea)

100
$15.00 (0.15/ea)

1000
$130.00 (0.13/ea)

Subtotal: $0.00 /

Square Nut 304 Stainless Steel - #8/32

SKU #590022

1
NA

25
$6.00 (0.24/ea)

100
$15.00 (0.15/ea)

1000
$130.00 (0.13/ea)

Subtotal: $0.00 /

Square Nut 304 Stainless Steel - #10/24

SKU #590032

1
NA

25
$6.25 (0.25/ea)

100
$16.00 (0.16/ea)

1000
$140.00 (0.14/ea)

Subtotal: $0.00 /

Square Nut 304 Stainless Steel - #10/32

SKU #590042

1
NA

25
$6.25 (0.25/ea)

100
$16.00 (0.16/ea)

1000
$140.00 (0.14/ea)

Subtotal: $0.00 /

Square Nut 304 Stainless Steel - 1/4-20

SKU #590052

1
NA

25
$8.25 (0.33/ea)

100
$21.00 (0.21/ea)

1000
$190.00 (0.19/ea)

Subtotal: $0.00 /

Square Nut 304 Stainless Steel - 5/16-18

SKU #590062

1
$0.67 (0.67/ea)

25
$14.50 (0.58/ea)

100
$39.00 (0.39/ea)

1000
$360.00 (0.36/ea)

Subtotal: $0.00 /

Square Nut 304 Stainless Steel - 5/16-24

SKU #590070-2

1
$1.07 (1.07/ea)

25
$25.75 (1.03/ea)

100
$99.00 (0.99/ea)

1000
$970.00 (0.97/ea)

Subtotal: $0.00 /

Square Nut 304 Stainless Steel - 3/8-16

SKU #590072

1
$1.17 (1.17/ea)

25
$26.50 (1.06/ea)

100
$66.00 (0.66/ea)

1000
$610.00 (0.61/ea)

Subtotal: $0.00 /

Square Nut 304 Stainless Steel - 1/2-13

SKU #590082

1
$2.48 (2.48/ea)

25
$52.25 (2.09/ea)

100
$148.00 (1.48/ea)

1000
$1,360.00 (1.36/ea)

Subtotal: $0.00 /

Square Nut 304 Stainless Steel - 5/8-11

SKU #590092

1
$14.15 (14.15/ea)

25
$352.50 (14.1/ea)

100
$1,404.00 (14.04/ea)

1000
$14,000.00 (14/ea)

Subtotal: $0.00 /

Square Nut 304 Stainless Steel - 3/4-10

SKU #590102

1
$18.81 (18.81/ea)

25
$469.25 (18.77/ea)

100
$1,871.00 (18.71/ea)

1000
$18,700.00 (18.7/ea)

Subtotal: $0.00 /

Frequently Used With

MRO Solution 2400 - Marine Grade Anti-Seize Lubricant - 8 oz. 1050-106

Our Price: $18.11

Subtotal: $0.00 /

MRO Solution 1000 - Food Grade Anti-Seize Lubricant - 8 oz. 1050-104

Our Price: $21.74

Subtotal: $0.00 /

Stainless Steel Square Nuts

Four-Sided Square Nuts in Corrosion Resistant Stainless Steel

Frequently Used With

Product Specifications

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