Phillips - Flat w/Nibs & Wings - Self Drilling Screws - Space Thread - Green Ceramic
#2 Point
Heads to ASME B18.6.3 with Nibs / Screws hardened to SAE J 78 specifications
Case Hardened to Rockwell C50 - 56
(Core Hardness: Rockwell C32-40)
Steel Green Ceramic Coated