简要说明：12.9级 din912 gb70

供应304不锈钢，12.9级合金钢黑色螺丝   主要有din7991  iso7380  din912,GB70标准的螺钉供应。小螺丝大量现货。
以下是供应尺寸  德驰五金  王先生 13412344576 QQ 66610202
 
M1.6x3,1.6x4,1.6x5,1.6x6,1.6x8,1.6x10,1.6x12,

M2x3，2x3.5，2x4,2x5,2x6,2x8,2x10,2x12,2x14,2x15,2x16,2x18,2x18,2x20,2x22,2x25,

M2.5x4,2.5x5,2.5x6,2.5x8,2.5x10,2.5x12,2.5x14,2.5x15,2.5x16,2.5x18,2.5x20,2.5x2.32,2.5x25,2.5x28,2.5x30,

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,