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Flat Washer: Steel, Black Oxide, Case Hardened Material Grade, For M20 Screw Size, 21 mm ID, 35 mm OD, 10 PK

Item # 516R019

$9.07 Pack of 10

Product Specs

Finish: Black Oxide
Material: Steel
Specifications Met: Not Rated
For Screw Size: M20
ID: 21 mm
OD: 35 mm
Thickness: 3.500 mm
Type: General Purpose
System of Measurement: Metric
Shape: Round
For Use With: Die; Jig Fixture Setup
Material Grade: Case Hardened
Maximum Temperature: Not Rated
Minimum Temperature: Not Rated
Rockwell Hardness: C40
RoHS Compliant: No
Salt Spray Results/ASTM B117: Not Rated
Square Size Tolerance: Not Rated

Compliance and Restrictions

Country Of Origin

  • USA

About Flat Washers

The most common washer style, flat washers install between the fastened material's surface and a nut or bolt head to help distribute the load or reduce friction.