Experts in the development and manufacture of precision fasteners,
components and systems, specializing in thin sheet attachment solutions.

PennAuto™ Fasteners & Precision Components


PennAuto™ fastener products offer a unique manufacturing and distribution methodology based on manufacturing of high strength components and fasteners in PennEngineering’s wholly owned manufacturing subsidiaries in Kunshan China, supported by sales, product inventory, distribution services and customer technical assistance strategically located in close proximity to its global customers.

PennAuto™ Facility, Kunshan, China


PennEngineering is one of the first company’s in the world to develop the ability to manufacture high strength complex components / fasteners in China that meet today’s demanding global automotive quality standards. Using a specialized approach, PennEngineering can produce PennAuto™ hardware with complex geometry using cost-effective and advanced processes unlike typically employed conventional machining methods. PennEngineering utilizes highly controlled, multi process, high volume production techniques, which involve forming/forging of the basic fastener followed by precision secondary turning/machining operations to complete the job.

This capability uniquely positions PennEngineering to deliver product at lower cost while achieving the same or improved levels of quality, as compared with Western competitors who are locked into high manufacturing and distribution cost structures.

Local service centers provide our customers with personalized service and the assurance of continuity in product supply from operations in China.


PennAuto™ Products

externally threaded

Externally Threaded Fasteners

  • Banjo Bolts
  • Double Ended Studs
  • Hex Bolts
  • Hex Flange Bolts
  • Screws
  • Shoulder Bolts
  • Square Head Bolts
externally threaded

Internally Threaded Fasteners

  • Floating Nuts
  • Hex Flange Nuts / Hex Nuts
  • Insert Nuts
  • Inserts For Plastics
  • Lock Nuts
  • Pierce Nuts on Wire
  • Tube Nuts / Weld Nuts
externally threaded

Other Fasteners & Hardware

  • Brake & Fluid Handling Components
  • Hollow Dowel Pins / Dowel Pins
  • Locator / Guide Pins
  • Ball Studs / Bushings
  • Compression Limiters
  • Double Ended Rivets
  • Grooved Shafts
  • Hinge Pins / Sleeves
  • Rivets / Shoulder Rivets

Full line of Automotive Fastening Solutions.