- Product Name: Self Drilling （DIN7981）
- Model NO.: DIN7981
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Product Details: Self Drilling （DIN7981）
DIN7504-K,-P,-N (ISO15480,15482,15481)
Size:M3.5—M6.3
Material:C1018-C1022
Surface hardness:270-390HV
Surface hardness:min.450HV
Core hardness:270~390HV
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Product Images: Self Drilling （DIN7981）
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