Suzhou Industrial Park Hongyi Fasteners Co.,Ltd

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.

16/03/2026

These are heavy hex fl**ge bolts. The client’s previous supplier used a single-die machine, causing poor head fill and cracking, and couldn’t meet shank perpendicularity requirements. After evaluation, we switched to a multi-station cold former—our largest machine fit the job. We developed new tooling and successfully solved both issues.

22/08/2025

Special screw

02/06/2025

Cross recessed pan head screws with washer for Automobiles
1022-Grade 4.6
Zinc plated iridescent,SST life 24Hrs for white rust, 48Hrs for red rust
HY0601-04457-2

02/06/2025

Customized automotive screws,cross recessed pan head screw with washer
SCM435
ST3.5*13
Zinc plated iridescent,SST 24Hrs for white rust
HY0601-04458

02/06/2025

Cross recessed pan head self tapping screws with cone end for automotive airbag system
ST3*9.2
1022
Zinc plated blue,SST 72Hrs for red rust
HY0601-04521

29/05/2025

27/05/2025

Torx recessed cylinder head screws for airbag system
Item #: HY0601-04532
M4-0.7*20
SCM435-10.9S
Zinc plated iridescent,SST 72hrs for white rust, Nylon patch blue

27/05/2025

Torx recessed pan head screws for airbag system
Item #: HY0601-04812
M3-0.5*7.95
SCM435-10.9S
Zinc plated blue

19/03/2025

Torx recessed pan head shoulder screws, trilobular forming threads
Item #: HY0601-04815
M3-0.5*18.6
1022
Zinc plated blue
Application: electric vehicles

19/03/2025

Torx recessed pan head screws with washer for EV
HY0601-04816
M3-0.5*10
1022
Zinc plated blue