Liberty Fastener-A Supplier of Fastener Products. 1220KWNR , Self Drilling Screw with Neo-EPDM Washer

1220KWNR , Self Drilling Screw with Neo-EPDM Washer

Indented Hex Washer Unslotted
Used in metal roofing to create a leak-proof seal
Screw is Case Hardened to Rockwell C50-56 (Core Hardness: Rockwell C32-40)
Steel Zinc Plated

Products specifications

Size	12-24 x 1 1/4 in
Ctn Qty	1500
Weight Lbs/M	16.00
Plating	Steel Zinc
Number of Points	3
Core Hardness	Rockwell C32-40