8-18 x 1/2 Square Pan Self Drilling Screw Full Thread 18-8 Stainless Steel NKBZ it features a 6-lobe pan

it features a 6-lobe pan head with a fully threaded shank

1/2-13 Hex Jam Nut Black Oxide and Oil

they feature a coarse thread for secure grip and a hex head for easy installation with a wrench

finished look when countersunk into the material

a RoHS-compliant coating that provides excellent corrosion resistance

8-18 x 1/2 Square Pan Self Drilling Screw Full Thread 18-8 Stainless Steel NKBZ it features a 6-lobe panThese 8 18 x 1 2 square pan self drilling screws are made of 18 8 stainless steel, which provides excellent corrosion resistance. They have a full thread, which provides a strong hold in a variety of materials. The square pan head provides a secure grip for driving, and the self drilling tip eliminates the need for pre drilling. These screws are ideal for use in a variety of applications, including metal, plastic, and wood.