A socket button head screw functions an exposed rounded head with an inner allen vital generate. Like socket cap heads They are really made use of on applications the place an allen key is accustomed to tighten/loosen. Hex heads are employed on heavier obligation apps and likewise purposes the place https://zionttrol.oblogation.com/28944471/5-easy-facts-about-types-of-screwdriver-heads-names-described