
Countersunk Washer, Material Grade/Class Not Graded, Material Steel, Finish Black Oxide, For Screw Size M6, Maximum Inside Diameter 6.4 mm, Outside Diameter 40 mm, Countersink Angle 90 Degrees , Overall Height 5 mm, System of Measurement Metric, Color Black, For Use With Flat and Oval Head Screws, Industry Standards AMPG 2002 FIN.31, Pack Size Small Pack, Rockwell Hardness C40, Thickness Tolerance +/-0.3 mm
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