Shanghai Detroit Precision Fastener Co., Ltd. (SDPF), founded in 2001 by Mr. James Gu and US Spiralock Corp., specializes in the production of DTFLOCK self-locking nuts and taps/gages with 30° wedge internal thread form. SDPF has been wholly owned by US Chester Technologies Corporation since 2006.
DTFLOCK self-locking nuts and taps/gages produced by SDPF feature many advantages such as simple structure, proven anti-loosening/anti-vibration performance, multiple re-use opportunities, etc. DTFLOCK is demonstrated breakthrough over traditional thread technology.
With thousands of applications already in use, DTFLOCK self-locking nuts and taps/gages have been proven in automobile, construction machinery, railway, urban rail, bridge, aviation industries and many other fields. DTFLOCK self-locking system ensures clamp load integrity, thus averting expensive warranty claims, maintenance cost and customer dissatisfaction.
SDPF employs the most talented and innovative staff,
...[More]stering a close teamwork, with a history of solving the most demanding thread joint problems.
Safety, credibility, security and quality have been our key words since the founding of SDPF. We have full traceability and proven control on all processes. Test certificates are provided free of charge upon request. SDPF is a proud holder of the ISO9001 and TS16949 registration certificates.