1/4X3 1/2 Spring Pin Slotted Mechanical Zinc APW188 They are made of stainless

They are made of stainless steel for corrosion resistance and have a serrated inner surface that bites into the mating surface to create a secure hold

The partially threaded body allows for a secure hold in wood or metal

They are fully threaded and have a Type A point

and a black oxide finish for enhanced corrosion resistance

The 3/8-16 size indicates that the nut has a thread diameter of 3/8 inches and a thread pitch of 16 threads per inch

1/4X3 1/2 Spring Pin Slotted Mechanical Zinc APW188 They are made of stainless1 4 X 3 1 2 Spring Pin Slotted Mechanical Zinc is a cylindrical pin with a slotted head and a chamfered end. The pin is made of zinc and has a diameter of 1 4 inch and a length of 3 1 2 inches. The slotted head allows for easy insertion and removal of the pin, while the chamfered end helps to prevent the pin from snagging on other objects. The pin is commonly used in mechanical applications, such as securing gears, pulleys, and other components.