Hardened Self Tapping Stainless Steel Screws , Pan Head Self Drilling Screw

Business Type

Product Detail

Self tapping screws pan head ST8.0x30 ISO7049 DIN7981 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.

If you are looking for flange head screws, please contact us for further information.

Self tapping screws torsional strength

Ms. fuchengjun fuchengjun
Contact Us Contact Details

Similar Products

Machine Parts

About our Company

Business Type
Machine Parts

Regional Suppliers

Machine Parts in China

Contact Us

Shanghai Summery Industrial Machine Co. , Ltd.

Ms. fuchengjun fuchengjun


Send us a message