Liberty Fastener-A Supplier of Fastener Products. 312007KWS4 , #4 Paint Serrated Hex Washer Unslotted Self Drilling Screws

312007KWS4 , #4 Paint Serrated Hex Washer Unslotted Self Drilling Screws

Self Drilling Screws with Self tapping screw threads
Heads to ASME B18.6.4 / Screws hardened to SAE J78 specifications
Case Hardened to Rockwell C50-56 (Core Hardness: Rockwell C32-40)
Steel Zinc Plated

Products specifications

Size	5/16-12 x 1 1/4 in
Ctn Qty	1000
Weight Lbs/M	28.80
Plating	Steel Zinc
Number of Points	4
Core Hardness	Rockwell C32-40