A4 Grade Bi-metal™ Masonry Screws

Designed For: Fixing timber battens, trunking, track and general components into concrete, masonry and timber.
Head Style: 5/16” (8mm) hexagonal (male) socket w/ flange

Drill point: Gash Point

Material Grade: Thread and Head - AISI 316/ A4, Drilling Point - SAE C1018 / C1022 (Hardened)

Washer: 16mm ø bonded EPDM