The Definitive Guide to types of screw heads
a person side of the bolt thread retains into the Wooden with the assistance of the self-tapping lag screw, whilst one other aspect characteristics machine bolts threads for the nut. Basically, a Hex head screw resembles a bolt. There's also combi head Hex head screws which can feature a mix hex-formed head/slotted/Phillips head. Hex head screws a