1/2 Inch Drive Universal Joint Swivel Deep Impact Socket, Cr-V 0.4"IDx0.47"ODx17" The depth of the hole

The depth of the hole should be equal to the length of the bolt

it is a kind of Furniture link assembly

Suitable for Machine computer case and equipment sheet metal cover mounting

-This inline switch is great for controlling LED strip lights on and off

55 inch(M22)

1/2 Inch Drive Universal Joint Swivel Deep Impact Socket, Cr-V 0.4"IDx0.47"ODx17" The depth of the hole* Made of chrome vanadium steel construction for strength and durability. * To protect against rust and corrosion, the black phosphate finish absorbs and holds oil, repelling moisture. * Beveled drive end helps guide extension smoothly onto drive tool * Four detent grooves provide a secure connection with the drive tool. * When space is limited, it increases your access and gives you a better angle by working around obstructions and into tight spots.