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System of Measurement
Inch
Screw Size
No. 2
No. 4
No. 6
No. 8
No. 10
1/4"
5/16"
3/8"
7/16"
1/2"
9/16"
5/8"
3/4"
1"
1
1/8"
1
1/4"
Material
18-8 Stainless Steel
316 Stainless Steel
Washer Type
Split
ID
0.088"
0.114"
0.141"
0.166"
0.167"
0.192"
0.193"
0.252"
0.314"
0.377"
0.38"
0.44"
0.502"
0.505"
0.564"
0.628"
0.753"
1"
1.003"
1.129"
1.254"
Finish
Hide
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OD
0.172"
0.209"
1/4"
0.293"
0.334"
3/8"
0.487"
1/2"
0.583"
0.680"
3/4"
0.776"
0.869"
0.965"
1"
1.073"
1.265"
1.656"
1.847"
2"
2.036"
3"
Military Specification
MS35338-134
MS35338-135
MS35338-136
MS35338-137
MS35338-138
MS35338-139
MS35338-140
MS35338-141
MS35338-142
MS35338-143
MS35338-144
MS35338-145
MS35338-146
MS35338-148
MS35338-149
MS35338-150
Certification
Mil. Spec.
Thickness
0.02"
0.025"
0.031"
0.04"
0.047"
0.062"
0.078"
0.094"
0.109"
1/8"
0.141"
0.156"
0.188"
1/4"
0.281"
0.312"
Specifications Met
ASME B18.21.1
ASTM A276
DFARS Specialty Metals
Compliant
Not Compliant
Length
1/16"
1/8"
3/16"
1/4"
5/16"
3/8"
7/16"
1/2"
5/8"
3/4"
7/8"
1"
1
1/8"
1
1/4"
1
3/8"
1
1/2"
1
5/8"
1
3/4"
1
7/8"
2"
2
1/4"
2
1/2"
2
3/4"
3"
Performance
Corrosion Resistant
Super Corrosion Resistant
Shape
Round
Export Control Classification Number (ECCN)
EAR99
REACH
Compliant
RoHS
Compliant
Hardness
Rockwell B83
Rockwell C35
Tensile Strength
80,000 psi or greater
Certificate Type
Material Certificate with Traceable Lot Number
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138 Products
Lock Washers
Split Lock
Mil. Spec. Split Lock Washers
Adhere to U.S. military standards for material and construction
21 products
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