CBD2
・ Double-end Turnbuckle for chain ends
Materials:
Screw: SCM435 Steel, Black oxide finish, Heat treated to Rc 33-39
Long Hex Nut: S45C Steel, Black oxide finish, Heat treated to Rc 33-39
Nut: Steel
Datasheet: https://www.imao.co.jp/files/on-cat/pdf/en/cbd1-e.pdf