12-14 x 3 Square Drive Pan Self Drilling Screw Full Thread Zinc 12-8 They feature a 3/8-16 thread

They feature a 3/8-16 thread size and are compatible with standard rack screws

75 DIN6923 Metric Class 10 Hex Flange Nut Non Serrated Zinc Yellow

The 6-lobe pan head provides a secure grip and prevents overtightening

while the full thread provides secure fastening

These 5/8-11 x 10 Carriage Bolts are Grade 5 fully threaded bolts with a zinc finish

12-14 x 3 Square Drive Pan Self Drilling Screw Full Thread Zinc 12-8 They feature a 3/8-16 threadThese 12 14 x 3" Square Drive Pan Self Drilling Screws are designed for use in metal applications. They feature a full thread design that provides maximum holding power, and a square drive head that allows for easy installation with a standard square drive bit. The zinc coating provides corrosion resistance, making them ideal for both interior and exterior use. These screws are perfect for a variety of applications, including attaching metal roofing