Lock Washer External Tooth 410 Stainless Steel

Stainless Steel External Tooth Lock Washers

Premium Lock Washers for use with a Screw or Nut


  • Serrated washers to create tension between the washers "teeth" and installation surface
  • The added tension makes the fastener assembly resistant to rotation
  • 410 Stainless steel external tooth lock washers are commonly used where a harder material is required
  • Actual measurements may vary slightly +/- depending on production run
  • Trade Names: Star Lock Washers

410 Stainless Steel External Lock Washer Specifications
Washer Size (ID) Outer Diameter (OD) Thickness
#2
Max 0.189" - Min 0.177" Max 0.013" - Min 0.010"
#3
Max 0.235" - Min 0.220" Max 0.016" - Min 0.010"
#4
Max 0.260" - Min 0.245" Max 0.018" - Min 0.012"
#5
Max 0.285" - Min 0.270" Max 0.020" - Min 0.014"
#6
Max 0.320" - Min 0.305" Max 0.022" - Min 0.016"
#8
Max 0.381" - Min 0.365" Max 0.023" - Min 0.018"
#10
Max 0.410" - Min 0.395" Max 0.024" - Min 0.018"
#12
Max 0.475" - Min 0.460" Max 0.027" - Min 0.020"
1/4"
Max 0.510" - Min 0.494" Max 0.028" - Min 0.023"
5/16" Max 0.610" - Min 0.588" Max 0.034" - Min 0.028"
3/8" Max 0.694" - Min 0.670" Max 0.040" - Min 0.032"
7/16" Max 0.760" - Min 0.740" Max 0.040" - Min 0.032"
1/2" Max 0.900" - Min 0.880" Max 0.045" - Min 0.037"
5/8" Max 1.070" - Min 1.045" Max 0.050" - Min 0.042"
3/4" Max 1.260" - Min 1.220" Max 0.055" - Min 0.047"
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Product Specifications
Color
Silver
Corrosion Resistant
Yes
Grade
410
Material
Stainless Steel
Product Type
External Tooth (Star) Lock Washers
System of Measurement (Unit)
Inch
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances