Special Bolts & Precision Pins Manufacturer

Precision fasteners engineered for your special projects

High-precision, reliable manufacturing of threaded pins, holed pins and custom bolts.

ISO / DIN standards Material certificate Custom production

Alparsa in Numbers

Strong infrastructure behind reliable production

25+
Years of experience
0.01mm
Precision tolerance
%98
On-time delivery
32+
Export countries

Our Product Groups

Custom manufacturing for your needs

Explore our sample product groups. Every item is produced to your project specification.

About Us

Reliable solutions through an engineering approach

With years of experience and a modern production infrastructure, we serve the special fastener needs of industries from automotive to defense, construction to energy. On every order we prioritize precision, material certification and on-time delivery.

  • Precision — Every part is produced to tight tolerances and measurable quality.
  • Reliability — On-time delivery and consistent quality are our priority.
  • Flexible Manufacturing — From standard parts to fully custom production.
  • Customer Focus — Engineering support and consulting tailored to your project.

Our Story

Quality

Measurable quality in every part

ISO/DIN standards, material certification and rigorous quality control processes.

ISO 9001
Quality Management
ISO 14001
Environmental Management
ADW 2000
Automotive Quality
EN 10204
Material Certificate 3.1
RoHS
RoHS Compliance

Our quality policy

Industries We Serve

The preferred supplier across industries

Automotive
Construction
Machinery
Defense
Energy
Marine

Production Video

Glimpses from the workshop

Short videos about our production processes and products.

Threaded pin production line

Threaded pin production line

A close look at the production stages and precision machining of our threaded pins.

Quality control of holed pins

Quality control of holed pins

Dimensional measurement and surface inspection verify each part meets acceptance criteria.

Flange & block manufacturing

Flange & block manufacturing

Casting, machining and assembly processes of our custom flange & block group.

All Videos

Need a custom-made part for your project?

Our engineering team reviews your drawing or sample and proposes the most suitable solution.

Request a Quote