10-16 x 1 1/4 Unslotted Indented Hex Washer Full Thread Self Drill Screw 410 Stainless Steel 13NCUP which means that it has

which means that it has a recessed cross-shaped drive

and the unthreaded portion below the head provides a secure hold

This 1/2-13 Finished Hex Nut is made of durable 18-8 stainless steel

This 8-32 x 1 1/4 slotted round machine screw is fully threaded and made of zinc

This 1/2-13 x 2 Hex Tap Bolt Grade 8 is made of high-quality steel and features a fully threaded design for maximum holding power

10-16 x 1 1/4 Unslotted Indented Hex Washer Full Thread Self Drill Screw 410 Stainless Steel 13NCUP which means that it hasThese 10 16 x 1 1 4 inch unslotted indented hex washer full thread self drill screws are made of 410 stainless steel. They have a hex washer head with an indented drive, and they are self drilling, which means they can be driven directly into metal without the need for a pilot hole. These screws are ideal for use in a variety of applications, including metal roofing, siding, and framing. They are also corrosion resistant, making them suitable for use