#4 Point - Serrated Hex Washer - Unslotted - Self Drilling Screw - Zinc
Width Across Flat of Hex: 7/16"
Height of Hex Head: 7/32“
Washer Head Diameter: 19/32"
Case Hardened to Rockwell C50-56
(Core Hardness: Rockwell C32-40)
Steel Zinc Plated
Technical Specifications / 2D 
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