Flat Phillips Undercut Self Drilling Screws
Manufactured to ASME B18.6.4 & SAE J78 specifications
Case Hardened to Rockwell C50-56 (Core Hardness: Rockwell C32-40)
Steel Zinc Plated
Case Hardened to Rockwell C50-56 (Core Hardness: Rockwell C32-40)
Steel Zinc Plated
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