Custom Precision Pin Manufacturer for Dowel, Spring, Slotted & Coiled Pins
Anhui Pins Metal Products Co., Ltd. is a custom pin manufacturer and factory in China specializing in precision dowel pins, spring pins, slotted pins and coiled spring pins. We manufacture pins to customer drawings or specified diameter, length, tolerance, material, hardness, heat treatment and surface finish.
Custom pin production is available for applications requiring shaft positioning, component alignment, mechanical retention, hinge connections and vibration-resistant fastening. Production specifications can be defined according to assembly structure, load conditions and dimensional requirements.
Pin Product Categories
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![Solid Dowel Pins]()
Solid Dowel PinsDiameter：Custom diameter available
Length：Custom length available
Material：Carbon Steel / Hardened Steel / Stainless Steel
Hardness：Customized heat treatment
Surface... -
![Wave Spring Pin]()
Wave Spring PinISO 13337 Slotted Spring Pins are cylindrical elastic fasteners manufactured with a longitudinal slot to provide flexibility during installation. When inserted into a drilled hole, the pin... -
![DIN 7 Parallel Pins]()
DIN 7 Parallel PinsDIN 7 Parallel Pins are cylindrical fastening and locating components designed to align and secure two or more individual parts in mechanical assemblies. With a precisely specified cylindrical... -
![DIN 7979 Parallel Pins With Internal Thread]()
DIN 7979 Parallel Pins With Internal ThreadDIN 7979 Parallel Pins with Internal Thread are precision-engineered cylindrical locating pins designed to align and position mating components in machinery, tooling, and industrial assemblies.... -
![ISO 13337 Slotted Spring Pins]()
ISO 13337 Slotted Spring PinsISO 13337 Slotted Spring Pins are cylindrical elastic fasteners manufactured with a longitudinal slot to provide flexibility during installation. When inserted into a drilled hole, the pin... -
![ISO 8750 Coiled Spring Pins]()
ISO 8750 Coiled Spring PinsISO 8750 Coiled Spring Pins are slotted-free, helically coiled fasteners formed from spring steel strip into multiple concentric layers. Designed to be installed in drilled holes, they compress... -
![Wave Tooth Spring Roll Pin]()
Wave Tooth Spring Roll PinWave Tooth Spring Roll Pins feature a wave-shaped, open-slot design that combines the retention characteristics of spring pins with a lightweight structure. Designed with reference to ISO 8752 and... -
![ISO 8735 Dowel Pin]()
ISO 8735 Dowel PinISO 8735 Dowel Pins are precision cylindrical locating pins manufactured according to ISO 8735, featuring an internal thread for removal and hardened steel construction for accurate positioning... -
![Multi Turn Spiral Spring Pins]()
Multi Turn Spiral Spring PinsMulti Turn Spiral Spring Pins are precision-engineered fasteners formed by rolling a metal strip into multiple spiral turns to create a resilient cylindrical pin. Their multi-layer construction... -
![Standard Duty Coiled Roll Pins]()
Standard Duty Coiled Roll PinsStandard Duty Coiled Roll Pins are self-retaining fasteners manufactured from strip steel formed into a coiled, hollow cylindrical profile. During installation, the pin compresses radially to... -
![Vibration Resistant Toothed Pins]()
Vibration Resistant Toothed PinsVibration Resistant Toothed Pins are mechanical fastening pins with a toothed external profile designed to create multiple contact points with the mating hole, helping resist loosening and... -
![ISO 2338 Dowel Pin]()
ISO 2338 Dowel PinISO 2338 Dowel Pins are cylindrical parallel pins manufactured from unhardened steel or austenitic stainless steel for precise component positioning, alignment, and repeatable mechanical assembly,...
Pin Types, Standards & Specifications
Compare Pin Types by Function, Material, Dimensions and Applicable Standards
| Pin Type | Common Standards | Key Specifications | Typical Material |
|---|---|---|---|
| Dowel Pins | DIN 6325 / ISO 2338 / ISO 8734 / DIN 7 | Diameter, Length, Tolerance, Hardness | Carbon Steel / Alloy Steel |
| Parallel Pins with Internal Thread | DIN 7979 / ISO 8735 | Diameter, Length, Internal Thread, Thread Length, Tolerance | Carbon Steel / Alloy Steel |
| Slotted Spring Pins | ISO 8752 / DIN 13337 | Diameter, Length, Wall Thickness, Hardness | Spring Steel |
| Tooth Spring Pins | Q/PES 002 / Q/PES 003 | Diameter, Length, Slot Configuration, Tolerance | Carbon Steel / Stainless Steel |
| Coiled Spring Pins | ISO 8748 / ISO 8750 / ISO 8751 | Diameter, Length, Coil Type, Load Requirement | Carbon Steel / Alloy Steel |
Dimensional Inspection
Critical dimensions including diameter, length, slot width, and concentricity are inspected to ensure compliance with drawing specifications and assembly requirements.
Hardness Testing
Heat-treated products undergo hardness verification to confirm mechanical strength, wear resistance, and performance consistency.
Surface Coating Inspection
Surface finishes are inspected for coating uniformity, adhesion quality, corrosion protection performance, and appearance consistency.
Sampling Control
Routine in-process and final sampling inspections are conducted throughout production to monitor product quality and maintain manufacturing consistency.
Quality Assurance System
Comprehensive inspection procedures are implemented throughout production to ensure dimensional accuracy, mechanical performance, and consistent product quality.
With abundant experience, we are one of the most professional pins manufacturers and suppliers in China. Please rest assured to buy high quality pins made in China here from our factory. For custom service and OEM&ODM service, contact us now.
Popular Products
Length：Custom length available
Material：Carbon Steel / Hardened...
