Technical decisions about fasteners directly affect product safety, warranty cost, assembly efficiency, and supply chain reliability. Whether you are an engineer specifying a BOM, a buyer qualifying a supplier, a QC inspector verifying compliance, or a production manager optimizing the assembly line — this is your central resource.
Technical Resources
Engineered for bicycle and motorcycle industry professionals
Selection Guide
Material grade comparison, property class selection, coating options, thread sizing, and application recommendations — the complete decision framework for choosing the right fastener.
Torque Reference
Engineering torque values by size, property class, coating, and substrate material. Bicycle component-specific tables for 37 assembly points. ISO 16047 methodology with K-factor adjustments.
Installation Guide
Thread preparation, tightening patterns, thread locker selection, material-specific techniques (Alu/Carbon/Steel/Ti), and 8-station production line work instructions.
FAQ
43 answers to the most common questions from assembly factories, frame builders, OEM brands, and distributors. Searchable by keyword. Covers ordering, quality, technical, and logistics.
Find Your Resources by Role
Different roles need different information — start with the path that matches your job
Engineers & R&D
Material data, torque calculations, thread tolerance analysis — the engineering data behind every assembly.
Fastener selection is an engineering decision, not a catalog pick. Access property class comparison tables, coating friction coefficients (K-factors), ISO-standard torque matrices, and material-specific installation procedures. We speak your language: tensile strength in MPa, thread fit in 6g/6H, CPK ≥ 1.33.
Procurement & Supply Chain
MOQ, lead times, certifications, payment terms — everything you need to qualify and onboard a new supplier.
We understand that your decision matrix includes price, quality, delivery reliability, and documentation. Standard items ship in 2–5 days with no MOQ. Custom parts come with full batch traceability, EN 10204 3.1 material certificates, and RoHS/REACH declarations — the documentation a professional buyer expects. Framework agreements with locked pricing are available for consistent annual volumes.
Quality Control & Compliance
Inspection criteria, certification documentation, batch traceability, and defect management processes.
Every shipment includes a Certificate of Conformity with dimensional and mechanical test results. Our defect rate target is ≤ 100 PPM with 100% automated optical sorting for safety-critical fasteners. When issues arise, our 8D problem-solving process delivers root cause analysis within 5–7 working days. ISO 9001:2015 certified by Bureau Veritas — annual surveillance audits ensure continuous compliance.
Production & Line Managers
Assembly SOPs, workstation setup, tooling recommendations, and efficiency improvements for the production line.
Turn our 8-station production line work instructions into your assembly SOP. From frame preparation (thread chasing + BB facing) to final QC (audit torque + torque stripe), every station has a defined tool, thread preparation, torque value, tightening pattern, and QC checkpoint. For factories producing 50+ units/day, DC electric torque tools with programmable sequences and traceable data logging are the current industry standard — we’ll help you specify the right equipment.
Top Questions from Customers
Frequently asked by engineers, buyers, and production managers
Standard catalog items have no MOQ — you can order as few as you need for prototyping. Custom parts start at 5,000–10,000 pcs for cold-headed, 500 pcs for CNC. Trial orders (100–500 pcs) encouraged.
ISO 9001:2015 certified by Bureau Veritas. Every shipment includes a Certificate of Conformity. EN 10204 Type 3.1 material certificates with full heat-number traceability available on request. RoHS & REACH Declarations of Conformity included for all EU shipments.
Dacromet or Geomet (zinc-aluminum flake) — never zinc electroplating. Zinc plating introduces hydrogen embrittlement risk in fasteners above 320 HV. Non-electrolytic coatings like Dacromet have zero hydrogen risk and provide 480–1,000+ hours of salt spray protection.
Stock items: 2–5 days. Custom parts: 20–30 days after sample approval. Rush orders for stock items ship in 24–48 hours. Custom parts with existing tooling can be expedited to 7–10 working days. Factory line-down emergencies are treated as absolute priority.
Yes — single-supplier assembly kits consolidate your entire fastener BOM. Packaged by workstation, sub-assembly, or as a complete bike kit with checklist. Eliminates 5–10 separate supplier relationships and simplifies receiving inspection.
Direct Engineering Support
When you need more than a reference table. Our team provides application-specific recommendations, tolerance stack-up analysis, coating compatibility reviews, and custom sample development for your project. Response within 24 hours.