Set of cap, socket, stud & post, made in pom material (polyacetal resin) resin with medecinal characteristics / auto-lubrication / heat resistance, light, and rust-proofing. Product exclusively made in Japan. References Diameter x Length (mm): SG#600 Head 13.0x7.0, Socket 11.6x3.4, Stud 11.6x4.1, Post 13.0x7.0 SG#800 Head 15.0x7.0, Socket 13x3.5, Stud 13x4.2, Post 15.0x7.0 SG#1000 Head 18.0x7.8, Socket 18x4.4, Stud 18x5.4, Post 18.0x7.8
