19/03/2026
This is an automotive flat pan head square neck bolt. Due to significant head size variations, a tendency for edge cracking, and a high strength-to-shrinkage ratio leading to punch rod breakage, the original supplier encountered production difficulties. Consequently, the customer needed to find a new supplier. After a careful evaluation, the customer recognized our technical expertise and entrusted us with the development. Ultimately, our R&D team lived up to expectations and successfully resolved the issue.