Wafer Head Metal Tek SDM 10-16x16 Class 4 Coating

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Wafer Head 10 gauge-16 threads per inch x 16mm long screw class 4 coating

Wafer Head screws are for fastening into metal where a flat head is required.

The Class 4 corrosion protection system meets the requirements of ISO 9223 Category 4 (Outdoor application for moderate and severe 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).