Flat - Phillips - Undercut with Wings - Self Drilling Screws with Machine Screw Threads - Zinc

Manufactured to ASME B18.6.3 dimensions
Case Hardened to Rockwell C50-56 (Core Hardness: Rockwell C32-40)
Steel Zinc Plated
Manufactured to ASME B18.6.3 dimensions
Case Hardened to Rockwell C50-56 (Core Hardness: Rockwell C32-40)
Steel Zinc Plated