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Washer Type
Split
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System of Measurement
Inch
Metric
Screw Size
No. 0
No. 1
No. 2
No. 3
No. 4
No. 5
No. 6
No. 8
No. 10
No. 12
1/4"
5/16"
3/8"
7/16"
1/2"
9/16"
5/8"
3/4"
Material
Aluminum
K500 Nickel
Silicon Bronze
Stainless Steel
Steel
Finish
Black Oxide
Cadmium Plated
Dyed
Galvanized
Passivated
Zinc Flake Coated
Zinc Plated
Zinc Yellow-Chromate Plated
ID
0.062"
0.075"
0.088"
0.094"
0.107"
0.114"
0.117"
0.12"
0.133"
0.141"
0.145"
0.148"
0.167"
0.174"
0.193"
0.2"
0.227"
0.252"
OD
0.137"
0.142"
0.15"
0.172"
0.173"
0.195"
0.202"
0.209"
0.216"
0.223"
0.236"
1/4"
0.266"
0.267"
0.293"
0.294"
0.307"
0.331"
Thickness
0.008"
0.01"
0.012"
0.015"
0.016"
0.018"
0.02"
0.022"
0.024"
0.025"
0.03"
0.031"
0.04"
0.042"
0.047"
0.056"
0.062"
0.062" to 0.077"
Specifications Met
ASME Standard
DIN Standard
Performance
Corrosion Resistant
High Strength
Lightweight
Reusable
Stackable
Tight Clearance
Fastener Strength Grade/Class
SAE Grade 8
Hardness
Rockwell B87
Rockwell B90
Rockwell C35
Rockwell C38
Rockwell C44
Not Rated
RoHS
Compliant
Not Compliant
DFARS Specialty Metals
Compliant
Exempt
Not Compliant
REACH
Compliant
Not Compliant
Overall Height
0.9 mm
1.1 mm
1.2 mm
1.3 mm
1.4 mm
1.5 mm
1.7 mm
2 mm
2.2 mm
2.5 mm
2.7 mm
2.8 mm
2.9 mm
3.1 mm
3.2 mm
3.4 mm
3.6 mm
3.7 mm
3.9 mm
4.5 mm
5.1 mm
6.5 mm
9.5 mm
Color
Blue
U.S.–Mexico–Canada Agreement (USMCA) Qualifying
Yes
No
Export Control Classification Number (ECCN)
2B999
EAR99
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
MS35338-39
MS35338-40
For Use With
Socket Head Screws
Certification
Mil. Spec.
Fastener Strength Rating
High
Certificate Type
Material Certificate with Traceable Lot Number
Height
0.085"
0.095"
0.13"
0.14"
0.15"
0.16"
0.17"
0.19"
0.23"
1/4"
0.3"
0.31"
0.9 mm
1.1 mm
1.2 mm
1.3 mm
1.4 mm
1.5 mm
Disc Spring Type
Split
Wave
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