Type 17 Countersunk Head 10 gauge-12 threads per inch x 40mm long screw zinc yellow coating
Type 17 Countersunk Head screws are for fastening pre-drilled fixtures to timber or thin steel.
Type 17 screws are a self drilling point for fastening into timber. The hardened point will also drill through thin metals up to 0.75mm thick that makes this point suitable for fastening sheets to timber battens. The screw threads extend down the point thus the screw "pulls" itself into the timber that reduces the required drilling pressure and reduces the risk of stripping of threads due to "over running".
The Zinc Yellow corrosion protection system meets the requirements of ISO 9223 Category 2 (Internal application for mild environments).
AS 3566.2 (Self drilling screws for the building & construction industries) specifies the corrosion protection systems required on screw fasteners Classes 1, 2, 3 & 4 where Class 1 is intended for indoor application and Class 4 for environments up to and including ISO 9223 Category 4 (Severe industrial and severe marine environments).
