1、圆柱头内六角DIN912,ISO7380圆头内六角,DIN7991沉头内六角螺丝,标准如下M3x5,3x6,3x8,3x10,3x13,3x14,3x15,3x16,3x18,3x20,3x25,3x30,3x35,M4x6,4x8,4x10,4x12,4x14,4x15,4x16,4x18,4x20,4x22,4x25,4x28,4x30,4x35,4x40,4x45,4x50,M5x8,5x10,5x12,5x14,5x16,5。
2、圆柱头内六角DIN 912ISO 7380圆头内六角 DIN 7991沉头内六角螺丝 标准如下M3x5, 3x6, 3x8, 3x10, 3x13, 3x14, 3x15, 3x16, 3x18, 3x20, 3x25, 3x30, 3x35 M4x6, 4x8, 4x10, 4x12, 4x14, 4x15, 4x16, 4x18, 4x20, 4x22, 4x25, 4x28, 4x30, 4x35, 4x40。
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