12-14 x 3 6-Lobe Flat Self Drilling Screw Fully Threaded Zinc & Bake M20-1.50 With its precise 1/4-28 thread

With its precise 1/4-28 thread size

The 3/8-16 NE Nylon Insert Hex Lock Nut is a type of nut that is used to secure bolts and screws in place

#12 Machine Screw Washer Zinc

It has a slotted indented hex washer head

It has a hexagonal shape with a 3/16 inch outside diameter and a 1/16 inch thickness

12-14 x 3 6-Lobe Flat Self Drilling Screw Fully Threaded Zinc & Bake M20-1.50 With its precise 1/4-28 threadThese 12 14 x 3 self drilling screws are designed for fast and easy installation into metal. They feature a 6 lobe drive that provides superior grip and reduces cam out, and a fully threaded design that ensures a secure hold. The zinc and bake coating provides excellent corrosion resistance, making them ideal for both indoor and outdoor applications. These screws are perfect for a wide range of projects, including metal framing, roofing, and siding.