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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![Industrial Spiral Roll Pins]()
Industrial Spiral Roll PinsIndustrial Spiral Roll Pins are multi-layer coiled spring fasteners designed for secure component retention, positioning, and alignment in mechanical assemblies. Manufactured according to DIN EN... -
![Internally Threaded Solid Dowel Pins]()
Internally Threaded Solid Dowel PinsStandards: ISO 8735 / DIN 7979
Material: Carbon Steel / Alloy Steel / Stainless Steel
Outer Diameter: Custom
Length: Custom
Internal Thread: Metric / Inch
Thread... -
![Serrated Spring Pins]()
Serrated Spring PinsSerrated Spring Pins are elastic slotted pins featuring a serrated profile along the longitudinal slot. During installation, the pin compresses to fit the mating hole, while the serrated sections... -
![Alloy Steel Dowel Pins]()
Alloy Steel Dowel PinsAlloy Steel Dowel Pins are precision-machined solid pins designed for accurate positioning, alignment, and secure connection between mating components. Alloy steel construction provides high... -
![Elastic Spiral Spring Pins]()
Elastic Spiral Spring PinsMaterial: Spring Steel / Stainless Steel
Design: Multi-Coil Spiral Structure for Controlled Elasticity
Diameter: Standard & Custom Diameters Available
Length: Standard &... -
![Heavy Duty Slotted Spring Pins ISO 8752]()
Heavy Duty Slotted Spring Pins ISO 8752Standard: ISO 8752
Material: Spring Steel / Stainless Steel
Duty Type: Heavy Duty
Diameter: Standard & Custom Diameters Available
Length: Standard & Custom Lengths... -
![Hardened Ground Dowel Pins DIN 6325]()
Hardened Ground Dowel Pins DIN 6325Type: Hardened & Ground Dowel Pin
Diameter: Metric sizes according to DIN 6325; custom diameters available
Length: Standard sizes available; custom lengths according to drawing... -
![ISO 8748 Heavy Duty Coiled Spring Pins]()
ISO 8748 Heavy Duty Coiled Spring PinsDesigned for demanding mechanical assemblies where higher radial strength, secure retention, and consistent installation performance are required.
Diameter Range: 1.5–20 mm, with custom... -
![ISO 8752 Slotted Pins]()
ISO 8752 Slotted PinsStandard: ISO 8752 (DIN 1481)
Product Type: Slotted Spring Pins / Heavy Duty Slotted Pins
Nominal Diameter: M1.5 – M50 (Custom sizes available upon request)
Material: Spring... -
![ISO 8734 Dowel Pins]()
ISO 8734 Dowel PinsStandard: ISO 8734
Nominal Diameter: φ1 mm – φ20 mm
Diameter Tolerance: m6
Material: Through-Hardened Steel / Case-Hardened Steel / Martensitic Stainless Steel... -
![Hardened Steel Dowel Pins]()
Hardened Steel Dowel PinsMaterial: Hardened Steel
Hardness: Heat-Treated for Enhanced Hardness and Wear Resistance
Diameter: Standard and Custom Diameters Available
Length: Standard and Custom Lengths... -
![Spiral Roll Pin]()
Spiral Roll PinDiameter Range: Metric 0.8 mm – 20.0 mm / Inch 1/16" – 3/4" (Custom Diameters Available)
Length Range: 4.0 mm – 120.0 mm / Cut-to-Length Upon Request
Duty Ratings: Light Duty (ISO 8751 /...
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
Material: Carbon Steel / Alloy Steel / Stainless Steel
Outer Diameter:...
