Semi-finished Furniture, Hardware Parts and Accessories | Screws, Fasteners, Washers:

A screw with good antirust utility.

For use at outdoors and tested by 500/1000 Hours S.P.T.

A screw with high holding power. For use in light duty anchoring, door and window frames, thresholds, plumbing straps and electrical conduits.

A screw with good drill utility. Point is either smooth or winged. Wings eliminate pre-drilling of wood.