Metal Washer, M9 Nut Kit Standard Size for Electric Guitar Bass (Black)

[METAL MATERIAL] Made of excellent metal materials, hard and wear resistant, not easy to deform or corrode. [M9 THREAD] These nuts have standard M9 female thread, a pitch of 0.75mm, and a standard size. [FOR JACK CONNECTION] Commonly used for electric bass or guitar, used for jack socket connection, easy to install. [SPECIFICATIONS] Including 14pcs nuts and 14pcs washers, sufficient in quantity, easy to use and replace. [SMOOTH ] The of these nuts and washers is smooth and seamless, tightly connected and not easy to slip.