Pins
Dowel Pins & Cotter Pins Supplier
As a supplier of dowel pins & cotter pins, we hold ready stock across common sizes and grades for fast turnaround on repeat and project orders.
As a supplier, we act as your ongoing sourcing partner — whether that means matching an existing specification, filling a recurring order schedule, or sourcing a specific grade or finish you can't get reliably elsewhere.
This role suits buyers who've already settled on a specification and need a dependable source for it over time, rather than re-evaluating quality and pricing on every order — the relationship is built around consistency against an agreed baseline.
Dowel pins and cotter pins solve opposite problems and get confused surprisingly often by buyers new to precision hardware: a dowel pin's entire job is to NOT move, locating two parts to each other with an interference fit ground to tight tolerance, while a cotter pin's entire job is to be removable, securing a castellated nut or clevis joint against loosening without needing tools beyond a pair of pliers.
Minimum Order — Container Quantity (Approx.)
A standard 20ft container (~20 tons) typically holds 2-3 million pieces of dowel or cotter pins in common sizes. Exact quantity depends on diameter and length and is confirmed at quote time.
You don't need a full container to order. Hurain Engitech & Trade — the group Global Fasteners Exports operates under — regularly ships smaller, partial-container (LCL) orders of just a few pallets or boxes for buyers who don't yet need FCL volume, consolidated with other cargo to keep freight cost reasonable.
Specifications
Standards
DIN 7 / ISO 2338 (parallel dowel pins), DIN 1481 (spring/roll pins), DIN 94 / ISO 1234 (cotter/split pins).
Size range
1mm to 50mm diameter dowel pins; 1mm to 10mm cotter pins.
Types
Parallel dowel pins, tapered dowel pins, spring (roll) pins, split cotter pins.
Finish
Hardened and ground (dowel pins), plain or zinc plated (cotter pins).
Applications
Precision assembly & jigs
Locating pins for tooling, fixtures, and mold components.
Castellated nut locking
Cotter pins securing wheel-bearing and clevis-pin assemblies.
Machine alignment
Dowel pins aligning gearbox and housing components.
Materials Available
Steel
Corrosion-resistant
Dowel pin diameters are ground to tight tolerance (h8) for interference-fit alignment; cotter pins are checked for consistent leg spread strength.
Our Process
- 1
Spec confirmation
Confirm pin type, diameter tolerance, and length.
- 2
Turning & grinding
Precision turning and centerless grinding for dowel pins.
- 3
Heat treatment
Hardening for dowel pins to resist wear at the fit surface.
- 4
Export packing
Small-parts packing suited to OEM assembly lines.
HS Code & Customs Classification
Most fasteners fall under HS Chapter 73 (articles of iron or steel) or Chapter 74/76 for brass and aluminum items — the exact 8-10 digit subheading depends on the specific product and material. We include the HS code on the commercial invoice; confirm the applicable import duty with your customs broker, since rates vary by country and trade agreement.
Countries We Cover
Frequently Asked Questions
Related Products
Get a quote — Dowel Pins & Cotter Pins Supplier
Send your product list, quantities, and destination port for a quote within 1-2 business days.