10-24 x 1/2 Slotted Hex Head External Sems Machine Screw Fully Threaded Zinc NWS1SS81 It has a #3 head

It has a #3 head and a Grade 5 strength rating

this machine screw is a reliable choice for both DIY enthusiasts and professionals alike

this hanger bolt is a reliable choice for strength

this 1/2-13 Heavy Hex Nut is a dependable choice

5 thread size indicates a diameter of 3mm and a pitch of 0

10-24 x 1/2 Slotted Hex Head External Sems Machine Screw Fully Threaded Zinc NWS1SS81 It has a #3 headThese 10 24 x 1 2" Slotted Hex Head External Sems Machine Screws are fully threaded and zinc plated for durability. They have a slotted hex head for easy driving and a sharp point for easy starting. These screws are commonly used in a variety of applications, including automotive, construction, and manufacturing. They are also ideal for use in tight spaces or where a flush finish is desired.