10-16 x 1 1/2 Unslotted Hex Washer With Number 5 Point Full Thread Self Dril Screw Zinc Bake M8-1.25 It has a domed head

It has a domed head with a square neck underneath

this tee nut provides a concealed and reliable connection

and plumbing

The 10-32 x 1 3/4 Phillips Flat Machine Screw Fully Threaded 18-8 Stainless Steel is a versatile and durable fastener designed for a wide range of applications

10-16 x 1 1/2 Unslotted Hex Washer With Number 5 Point Full Thread Self Dril Screw Zinc Bake M8-1.25 It has a domed headThese 10 16 x 1 1 2 inch unslotted hex washer head screws feature a number 5 point and full thread design. They are self drilling, eliminating the need for pre drilling, and are made of durable zinc plated steel for corrosion resistance. The hex washer head provides a wide bearing surface for increased torque and prevents overtightening. These screws are ideal for a variety of applications, including metal to metal fastening, roofing, and siding.