6-32 x 3 Phillips Pan External Sems Machine Screw Fully Threaded Zinc KPFT while the 18mm length refers

while the 18mm length refers to the overall length of the screw

These 7-19 x 1 1/4 inch Phillips bugle head full thread self drilling drywall screws are made of hardened steel and feature a black phosphate finish for corrosion resistance

* Ribbed: No

Its combination Phillips/slotted drive allows for easy installation using either a Phillips head screwdriver or a flathead screwdriver

It has a Phillips drive and a truss head

6-32 x 3 Phillips Pan External Sems Machine Screw Fully Threaded Zinc KPFT while the 18mm length refersThis 6 32 x 3 Phillips pan external sems machine screw is fully threaded and made of zinc. It has a Phillips drive and a pan head. The screw is 3 inches long and has a diameter of 6 32. It is designed for use in a variety of applications, including automotive, construction, and manufacturing. The zinc coating provides corrosion resistance and durability.