Truss head Phillips self-tapping screw manufactured from hardened carbon steel. Wide, low-profile truss head offers large bearing surface to prevent pull-through on thin sheet materials. Phillips drive for simple installation. Sharp point taps thread into wood, plastic and thin aluminium sheet. No drill tip, cannot drill steel plate. Widely used for electrical components, sign mounting, furniture and light sheet assembly. Sizes ST2.9~ST6.3, length range 13–100mm. Zinc plated finish optional.