Yamashina Non-Heat-Stud Weld Bolts
Yamashina describes its Non-Heat-Stud weld bolt as using material with an approximate tensile strength of 800 MPa, avoiding a separate heat treatment to harden the bolt after it has been formed. The figure describes the material in the manufacturer’s announcement; it is not a joint-strength guarantee or a specification for all weld bolts.
The manufacturer reports lower heat-treatment costs and improved welding behaviour compared with its conventional heat-treated approach. The starting material has high strength and is more difficult to form, so the route requires suitable manufacturing capability.
The bolt is welded upright to steel sheet. Material selection, sheet compatibility and welding conditions still require application-specific verification. Omission of the finished bolt’s hardening treatment does not establish that every earlier wire-processing or annealing step can be omitted.
Manufacturer references
This is an industry-technology report, not a claim that Creation Group manufactures or supplies the featured third-party fastener or tool.