EXCLUSIVE Otter Roofing & Cladding Timber Screws 12g x 30mm Pack of 250 Galvanised SKU: 231686 MODEL: TING12307 Error. try again later You've successfully joined the club $ 58 .98 pack of 250 Mitre 10 MSAvailable at Mitre 10 MEGA and selected Mitre 10 stores. Variants Suitable for outdoor use fixing to timber. Mechanical galvanising to class 3. Features and benefits Hex flanged head with EDPM washer. Self-drilling type 17 point. Coarse thread for use in lighter density materials.