Anti Theft Drive Self Drilling Pan Head Screws DIN 7981 For Electronic Plastic

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ST9.5x32 Self tapping screws DIN7981 pan head ISO7049 type C -H zinc plate



This International Standard specifies the characteristics of Cross recessed pan head tapping screws with thread sizes from ST 2,2 to ST 9,5 inclusive.



Surface hardness:

The minimum surface hardness after heat treatment
shall be 450 HV 0,3

Core hardness:

The core hardness af?er heat treatment shall be
270 HV 5 to 390 HV 5 for threads S ST3,9, and
270 HV 10 to 390 HV 10 for threads > ST4,2.





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