Otter Hex Head with Seal, Class 3, Blister
Hex Head Type 17 with Bonded Washer
16mm Hex Drive Self-drilling type 17 point can pierce light gauge steel up to 0.6mm. Hex flanged heads with 16mm bonded washer provides optimum holding power and seals out wind and rain. Bonded washer designed for optimal performance in high winds.
For fixing roofing and cladding to timber
Plumbers, Roofers, Builders, Fencers and DIYers
Cold forged and roll formed, Hex flanged head with EPDM washer, coarse thread with type 17 point, made from hardened wire