Pins
Dowel Pins & Cotter/Split Pins Manufacturer, Wholesaler, Supplier & Exporter
Dowel Pins & Cotter Pins manufacturer, wholesaler, supplier and exporter from India. Global Fasteners Exports is a trading and export company: our dowel pins & cotter pins are made to DIN 7, ISO 2338, DIN 1481, DIN 94 standards by partner factories and supplied to importers, distributors and OEMs in 222+ countries from 10,000 pcs, or a half or full container, at competitive prices below the average wholesale price.
Dowel pins provide precise alignment between mating parts, while cotter (split) pins secure castellated nuts and clevis joints against loosening. Made by our partner factories, we supply and export both to DIN and ISO standards in steel and stainless steel.
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.
Dowel pin tolerance classes matter more than the nominal diameter suggests. A standard h8 tolerance dowel pin gives a reliable interference fit in a reamed hole for most jig and fixture work, but precision mold and gauge applications sometimes specify tighter m6 tolerance pins — mixing the two in a kit assumes an interchangeability that doesn't actually exist.
Minimum order and container quantity
Minimum order
10,000 pcs
or half / full container, as per your requirement
Half container (20ft)
1-1.5 million pcs
Full container (20ft)
2-3 million pcs
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.
The minimum order is 10,000 pcs, so you don't need a full container to order: half-container and smaller LCL orders are available as well. 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.
How We Supply & Export This Product
- 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.
Export Track Record
Supplied to precision machinery and automotive component manufacturers.
Real-World Use Cases
Jig and fixture alignment
Precision dowel pins locating tooling components to each other repeatably.
Castellated nut retention
Cotter pins securing wheel-bearing and steering linkage castellated nuts against loosening.
Gearbox and housing alignment
Dowel pins ensuring housings and covers reassemble in exactly the same position every time.
Common Mistakes Buyers Make
Mixing dowel pin tolerance classes
h8 and m6 tolerance pins aren't interchangeable in a precision fit, even at the same nominal diameter.
Reusing a cotter pin after removal
Once bent and straightened, a cotter pin's legs are weakened — always replace with a new pin, not the same one reinstalled.
Under-sizing a dowel pin for a repeated-disassembly joint
Frequent removal and reinsertion wears an interference fit over time — a slightly larger pin or a bushed hole extends service life.
Glossary of Terms
- Interference fit
- A fit where the pin is slightly larger than the hole, relying on elastic deformation to stay in place without a mechanical lock.
- h8 tolerance
- A standard dimensional tolerance grade for dowel pins, giving a reliable but not ultra-precision interference fit.
- Castellated nut
- A nut with slots cut into one face, allowing a cotter pin to pass through and lock it against a drilled bolt or axle.
Quality Inspection We Perform
Dimensional inspection
Thread gauge, length, diameter, and head/drive geometry checked against the specified standard.
Material verification
Grade and material composition confirmed against the order specification, with mill test certificates on request.
Mechanical testing
Tensile strength, hardness, and proof-load testing on sample batches, particularly for structural and high-tensile grades.
Finish & coating check
Plating thickness, galvanizing coverage, or passivation quality inspected before packing.
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.
Packaging & Export Labeling
Export packing is chosen to survive ocean freight and container loading without corrosion or damage: corrosion-protected paper or oil coating where needed, then cartons, drums, or bulk bags, palletized or crated for the container. We can match specific labeling, barcoding, or carton-marking requirements for OEM and repeat buyers.
Countries We Export Dowel Pins & Cotter Pins To
All countries and cities for Dowel Pins & Cotter Pins →Buying guide
How to Choose a Reliable Dowel Pins & Cotter Pins Manufacturer, Wholesaler, Supplier & ExporterTwo fasteners that solve opposite problems but get confused often — what to verify before ordering precision dowel pins or safety-critical cotter pins.
Frequently Asked Questions
Related Products
Competitive export pricing
The best price on dowel pins & cotter pins for buyers worldwide
Global Fasteners Exports provides competitive export prices for worldwide customers, below the average wholesale price, because we buy in volume directly from our partner factories. With 16+ years of experience, we are honored to export to 222+ countries and to cooperate with 10,000+ customers around the world. Are you looking for dowel pins & cotter pins for your brand or wholesale business worldwide? Global Fasteners Exports is your best choice. Dowel and cotter pins are bought by the thousand, so volume pricing starts early, and diameter, length and material can be customized. Minimum order 10,000 pieces, or a half container or a full container as per your requirement. Customized available.
Reviewed by Khalil Syed, Founder, Hurain Engitech & Trade · Last updated
Factory-direct
Priced below the average wholesale rate
16+
Years of experience
222+
Countries we export to
10,000+
Customers worldwide
10,000 pcs
Minimum order, or half / full container
About us
Trusted Dowel Pins & Cotter Pins manufacturer, supplier and exporter from India
Global Fasteners Exports is a trading and export company that supplies dowel pins & cotter pins from India, with quality checks, export packing and complete shipping documents.
Our dowel pins & cotter pins are manufactured to your grade, size and packing by our partner factories, and we sell and ship them to importers, distributors, OEMs and project buyers. Buying through us means one supplier for dowel pins & cotter pins and for the other pins you need, one inspection and one set of export documents.
16+
Years of experience
40+
Our team
10,000+
Happy customers
26
Fastener product lines
222
Countries we supply
FCL · LCL
Container export, door-to-port
Our vision in India
Our vision is to make sourcing dowel pins & cotter pins simple and dependable for every buyer in India and abroad: clear specifications, honest information about who makes the product, and a supplier that answers questions before and after the order.
Our mission in India
Our mission is to supply dowel pins & cotter pins at competitive prices, below the average wholesale price, through our partner factories and bulk buying, with transparent quotations, inspection before dispatch and reliable delivery from India. Send your specification and quantity to get a price you can compare.
Ready to order Dowel Pins & Cotter Pins?
Send your quantities, grade, standard, and destination port for a quote.