54 MASONRY SCREWS & ANCHORS PRODUCT NAME 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" hexagonal head Drill point: Type 17 Coating: 500hr Evoshield® Shank material: Stainless steel Material grade: AISI 316/ A4 ✓ Carbon steel point and lead thread ensures superior tapping characteristics giving consistent fastening every time ✓ Bi-metal fasteners have a hardened carbon steel drill point married to a 316/ Euro A4 grade stainless steel shank and head ✓ Ultimate corrosion protection to ensure long-term fastener integrity ✓ Aggressive threadform design ensures consistent tapping and holding power ✓ Fast and simple installation ✓ Non-expansion fixing allows fixing closer to edge of substrate ✓ Euro A4 grade stainless washers also available 2002/95/EC