1/4-14 x 3/4 Unslotted Indented HWH Self Tapping Screw Type B Full Thread Zinc D692310 This 5/16-18 x 2 Slotted

This 5/16-18 x 2 Slotted Truss Machine Screw is fully threaded and made of zinc-plated steel

This 1/4-14 x 1 unslotted indent hex washer self-drill screw is made from 316 stainless steel

meaning they have a coarse thread

The Type AB point creates its own threads

1/4-14 x 3/4 Unslotted Indented HWH Self Tapping Screw Type B Full Thread Zinc D692310 This 5/16-18 x 2 SlottedThis 1 4 14 x 3 4 Unslotted Indented HWH Self Tapping Screw Type B Full Thread Zinc is a high quality fastener designed for a variety of applications. It features a sharp point that easily penetrates metal, wood, and plastic, and its self tapping threads create their own mating threads as they are driven in. The indented hex washer head provides a secure grip for driving and prevents the screw from slipping. The zinc coating provides corrosion