SWA 4.7mm x 37mm Masonry Screws and Washers (Tub of 100)

Designed for: Fixing of Firefly clips to trunking, timber track and general components into concrete and masonry. Head style: Countersunk. Drive bit: Phillips 2. Drill point: Nail point. Coating: 500hr Evoshield®. Shank material: Carbon steel. Material grade: AISI C1022. Size: 4.7 x 37mm. Fixture Thickness (mm): 5.0 – 20.0. Minimum Drill Depth (mm): 35.0. Minimum Embedment Depth (mm): 25.0. Pilot Hole (mm): 4.35. · · · Spring-loaded design for easy addition and removal · · Zinc-plated and white powder coated steel · · Melt point over 1000°C · · Must be ordered in box quantities · · Complies to BS 7671 Amend 3 standards