|0.3750 (3/8)||Partial||16||1.0000 (1)||Plain Finish||0.0328|
Similar to Hex Sockets, Square Heads are the original Set Screws. Found in older equipment, the screws offer the same benefits as the Hex Sockets. However, they’re designed with an external square head, which is smaller than the body diameter. Earnest offers Square Head Sockets in case hardened steel.
Square Head – Case Hardened