Slotted Hex Washer - Self Piercing Screws w/ Bonded New-EPDM Washer
Creates leak-proof seal when attaching light-gauge steel
or aluminum to wood
Case Hardened to Rockwell C45 min
(Core Hardness: Rockwell C23-33)
Fully Threaded / Steel Zinc Plated
Technical Specifications / 2D 
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