trusco六角形插座套件螺钉，空心尖端，黑色染色M4 x 3，50件 六边形插座螺钉 B31-0403

Package: Bolton Pack (Blister)
Dimensions (mm) d: M4
Dimensions (mm) L: 3
Screw pitch (mm): 0.7
Strength category: 45H
Surface treatment: Black dyed (iron oxide coating)
Screw portion length (mm): 3
Tip shape: Bow tip

铬钼钢（SCM435）
表面处理：黑色染色表面（氧化铁涂层）

7.5G

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• iso
• rohs2