Opis
Products / Cotter pins
Cotter pins
Cotter pins secure bolted connections and pivots against unintended slipping. We make standard cotter pins (DIN 11024) and custom designs – from wire 1 – 6 mm.
Technical specification
Applications
- Securing pivots and axles – the most common use: locking pins in machines, trailers, agricultural and construction equipment.
- Articulated joints – used in mechanisms where elements must rotate but cannot slip out (e.g. levers, linkages, hinges).
- Automotive – securing castle nuts, brake pins, suspension components, trailer hitches.
- Agricultural machines – quick fixing and locking of working elements, hitch pins, support wheels.
- Machine and structure building – securing bolts in jacks, stands, scaffolding, transport trolleys.
- Sports and recreation equipment – locking adjustable elements in fitness gear, bicycle trailers, stands.
- Tools and workshop equipment – securing spindles, quick fixing of replaceable elements.
Benefits
- Tailored to your individual project
- Manufacturing cost optimisation
- Fast roll-out to serial production
- Engineering support during design phase
Related services
Frequently asked questions
How do I choose the right solution for my application?
Contact our engineering department – we will help you select product type, material and finish for your specific use case. Backed by 50 years of experience.
How can I optimise the manufacturing cost?
We optimise the design for serial production (material choice, geometric parameters, finishing technology). Often we cut cost by 15-30% without losing functional parameters.
How do I move from prototype to serial production?
Prototyping at PSI runs smoothly and transparently. After prototype approval we roll out the series in 2-3 weeks with full quality control and batch traceability.
How can we shorten lead time without losing quality?
We have our own CNC machine park, tool shop and quality control lab. Everything under one roof shortens response time to design changes.
Need a quote?
Send us a technical drawing, sample or project description – we will respond within 48 hours with a manufacturing proposal.
How we work.
6 simple steps – from your first message to the finished product in your warehouse. Average time: 2-6 weeks depending on complexity.
Inquiry
You send drawings, parameters or describe your situation. We respond within 48 hours.
Technical analysis
Our engineers verify feasibility, select materials and propose optimal technology.
Quote
You receive a complete offer: commercial terms, timeline, technical feasibility conditions.
Prototype
We produce samples for validation – tests, dimensional control, fatigue cycles.
Series production
Manufacturing acc. to ISO 9001 / IATF 16949 with full traceability and 3.1 certificates.
Quality and delivery
Final QC, packaging acc. to your requirements, on-time delivery to any country worldwide.
Production in numbers.
Over 75 years of experience, modern CNC technology, certified processes – we deliver components for the most demanding industries.
Awards.
We invest in quality – certified by the most demanding standards.
Send an inquiry.
Our engineering team will help you choose the right springs, materials and process manufacturing. We respond within 48 hours.
- 📞+48 25 644 58 00
- ✉office@psi-sps.com.pl
- 📍Brzeska 72, 08-110 Siedlce
- 🕗Mon-Fri: 7:00-15:00
Quick inquiry
Send the form – our engineers will get back to you within 48h.
