M4/M6/M8/M10/M12 SUS304 平ワッシャー stop harm to surfaces and spread pressure evenly, so screws don't come loose or fail.
M4/M6/M8/M10/M12 SUS304 Flat Washer come in sizes M4, M6, M8, M10, and M12 to fit different bolt sizes for whatever you're working on. They sit smoothly between the bolt and the surface, preventing wiggling and loosening.