Brand:TGR, XDM, TD Brief: Surface:HDG, plain, black, galvanized, yellow zinc, nickel plated,dacromet, etc Material:stainless steel304,316,316L,317,317L,carbon steel,etc Size:M6-M12,Custom MOQ:10000
Expansion is created by tightening a threaded bolt which draws a tapered cone expanding a sleeve against the walls of the hole.