Casting sleeve BTK

BTK injection sleeve is a strong fastening made of a threaded long nut fitted with a 8.8 grade screw at one end. The screw is screwed into the nut with a screw punch. This design allows variants in a variety of dimensions and lengths. Used as an attachment, for example for lifting or securing the guide stud of precast concrete structures. Version: Zinc-plated, hot-dip galvanized, stainless and acid-proof.