Custom Pin Manufacturer | Precision Industrial Pins for OEM Applications
In modern industrial manufacturing, pins serve as vital components for mechanical connection and positioning. Although their structure is often simple, they play a critical role in applications ranging from equipment assembly and component alignment to kinetic linkages and secure fastening. From precision molds and automation equipment to automotive manufacturing, heavy machinery, medical devices, and new energy systems, pins are found across virtually every industrial sector requiring precise connections and reliable fastening.
With over 20 years of experience as a custom fastener manufacturer, Zeyao specializes in OEM and ODM pin production, providing global clients with both standard and non-standard, custom-engineered pin solutions.
Our capabilities include:
Manufacturing based on customer drawings
Custom production based on samples
Development of non-standard dimensions
Customization with special materials
Specialized surface treatments
High-volume production
Backed by over 160 pieces of production equipment and robust manufacturing capacity, Zeyao meets diverse needs—ranging from prototype development and small-batch pilot runs to full-scale mass production—ensuring a stable and reliable supply of pins for machinery manufacturers, equipment OEMs, and brand clients.
20+
Production experience
160+
Production equipment
3,000 m²
Factory area
10 million
Monthly output
-
![DIN7 Stainless Steel Dowel Pin]()
DIN7 Stainless Steel Dowel PinHead Type: Plainview more
Material: Stainless steel 303, stainless steel 304, or stainless steel 316
End shape: Chamfered
End Type: Plain
Shaft Type: Plain
System of... -
![Customized Brass Nickel Plated Pin]()
Customized Brass Nickel Plated Pin-Material: Brass, Steel, stainless steelview more
-Surface finish: Nickel plated, chrome plated
-Diameter: 1mm-30mm
-Length:1mm-100mm
-Tolerance: Standard is ±0.1. Special tight... -
![Ball Handle Quick Release Pin]()
Ball Handle Quick Release Pin-Plastic Ball Handleview more
-Stainless steel pin
-Stainless steel spring
-Stainless steel ball, or hardened steel ball.
-Diameter of the pin can be 3mm-30mm. Customized pin... -
![Knurled Dowel Pin]()
Knurled Dowel PinKnurled conical stainless steel locating pins (knurled pins) are key positioning components in the field of precision manufacturing, designed to solve the alignment problems in high-precision...view more -
![Cylindrical Locating Pin]()
Cylindrical Locating PinCarbon steel galvanized flat head cylindrical pin with hole (cylindrical locating pin) is an industrial standard part widely used in mechanical connections and positioning scenarios.view more -
![Clevis Pin with Retaining Ring Groove]()
Clevis Pin with Retaining Ring GrooveThe clevis pin with retaining ring groove is a pin that features one or more grooves on its surface. The grooves are used with metal clips to help the pin hold objects more firmly.view more -
![Precision Clevis Pin]()
Precision Clevis PinThe precision clevis pin is a mechanical component typically used for positioning and connecting two parts. It is cylindrical, with a flat head on one end and another with a hole for easy...view more -
![Cylindrical Dowel Pin]()
Cylindrical Dowel PinThe cylindrical dowel pin is a type of locator pin used to fix the relative position between parts. It is an important component during assembly and machining. They are typically held in place by...view more -
![Knurled Dowel Pins]()
Knurled Dowel PinsThe knurled dowel pin is a rotating pin with textured patterns, usually made through precision knurling machines. The knurling patterns can be diamond or straight, which allows for a better grip...view more -
![Cotter Pin]()
Cotter PinThe cotter pin, also known as a spring pin, is a widely used mechanical fastening component. They are typically made from cylindrical metal and have one or more openings, which give them spring...view more -
![T Handle Ball Lock Pin]()
T Handle Ball Lock PinThe T-Handle Ball Lock Pin is a high-precision mechanical component designed for quick positioning, fastening, and connection.view more -
![Knob-Grip Locking Quick-Release Pins]()
Knob-Grip Locking Quick-Release PinsThe knob-grip locking quick-release pin is a simple and efficient fastening, allowing easy control of the pin’s insertion, locking, and release with a quick turn and pull of the knob. No...view more
Specification
|
A |
Clamping Length |
B |
C |
D |
E |
H |
|
5 |
10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100 |
5.2 |
8.4 |
7.9 |
24 |
9.2 |
|
6 |
6.9 |
8.7 |
9.5 |
24 |
12.7 |
|
|
8 |
10 |
8.5 |
11 |
24 |
12.7 |
|
|
10 |
11.6 |
9.9 |
12.7 |
30 |
12.7 |
|
|
12 |
15 |
12 |
15 |
30 |
14.2 |
|
|
16 |
19.5 |
17.1 |
19.1 |
30 |
14.2 |
|
|
20 |
25 |
19.1 |
22.2 |
45 |
14.2 |
|
|
25 |
29.2 |
25 |
28.6 |
45 |
14.2 |
Types of Pin
The pins produced by our company mainly include the following types:
Dowel Pin
A dowel pin is a cylindrical fastener, typically made of metal, wood, or plastic, used to join or align two or more components together. They are inserted into pre-drilled holes and act as a locating or holding mechanism.
Locking Quick Release Pin
A locking quick release pin is a fastener designed for rapid assembly and disassembly, featuring a button-activated locking mechanism that prevents accidental release. It uses spring-loaded balls or detents that extend from the pin shaft to lock it in place, and a button on the handle allows for controlled release.
Applications of Pin
Furniture and Cabinetry
Dowel pins are commonly used in the assembly of furniture and cabinetry, providing a precise and secure connection between the components.
Machinery and Equipment
Dowel pins are widely used in the manufacturing and assembly of machinery and equipment, ensuring precise alignment and secure connections between the components.
Automotive and Aerospace
Dowel pins are essential components in the automotive and aerospace industries, providing precise and durable connections that can withstand high levels of stress and vibration.
Medical Devices and Electronics
Dowel pins are used in the manufacturing and assembly of medical devices and electronics, providing a non-metallic and precise connection that can withstand various environmental conditions.
Materials of Pins
18-8 / 300 Stainless Steel
Dowel pins made from 18-8 / 300 series stainless steel offer excellent corrosion resistance, making them ideal for environments with limited moisture exposure. These pins are versatile for general-purpose applications, ensuring components remain aligned and secure without significant risk of rust or degradation.
303 Stainless Steel
Dowel pins crafted from 303 stainless steel provide excellent machinability, making them easy to manufacture to tight tolerances. This is particularly beneficial when high volumes of pins are required.
316 Stainless Steel
Dowel pins made from 316 stainless steel offer superior corrosion resistance, making them suitable for harsh or corrosive environments, such as marine or chemical applications, where precision and durability are critical.
400 / 416 Stainless Steel
Dowel pins made from 400 / 416 stainless steel offer high hardness levels after heat treatment and increased wear resistance. This makes them well-suited for high-stress applications where strength and durability are essential.
A1, A2, and A4 Stainless Steel
Dowel pins made from A1, A2, and A4 stainless steel grades offer different levels of corrosion resistance and hardness. A1 and A2 are suited for moderate environments, while A4 is optimal for highly corrosive conditions.
Alloy Steel Plain
Dowel pins made from alloy steel with a plain finish are highly valued for their exceptional strength and resistance to deformation. This makes them ideal for heavy-duty applications. The plain finish ensures a smooth surface that can be easily integrated into various assemblies without additional coatings or treatments.
Alloy Steel Phosphate
Dowel pins crafted from alloy steel with a phosphate finish offer the same strength and resistance to deformation as their plain finish counterparts but with added benefits. The phosphate coating provides enhanced corrosion resistance, making these pins suitable for environments where exposure to moisture or chemicals is also a concern.
Brass
Brass Dowel pins offer corrosion resistance, non-magnetic properties, good electrical and thermal conductivity, ease of machining, and aesthetic appeal. They are often used where there’s a need to avoid sparking or in applications with lower strength requirements.
Custom Pin Options
At Zeyao, we provide customized pin manufacturing solutions based on your drawings, samples, and application requirements. Our customization options include dimensions, materials, surface treatments, and special designs to meet different industrial needs.
Custom Pin Dimensions
Diameter – Custom pin diameters based on assembly requirements and load conditions.
Length – Different lengths available for various installation spaces and applications.
Tolerance – Precision tolerance control for applications requiring accurate positioning.
Shape & Design – Custom structures according to drawings or samples.
Custom Materials
Carbon Steel – Cost-effective and suitable for general industrial applications.
Stainless Steel 304/316 – Excellent corrosion resistance for marine, food, and outdoor applications.
Alloy Steel – High strength for heavy-duty machinery and high-load applications.
Brass & Other Materials – Available for special electrical or precision applications.
Custom Surface Treatments
We offer different surface finishes to improve corrosion resistance, durability, and appearance:
Zinc Plating
Black Oxide
Nickel Plating
Hot-Dip Galvanizing
Dacromet / Geomet Coating
Passivation Treatment
Custom Design & Special Requirements
Non-standard pins
Special grooves or holes
Custom head designs
Special locking structures
Assembly-specific requirements
Custom packaging and labeling
Steps for Installing a Cotter Pin
Make sure the components to be fastened are exactly lined up, then smoothly push the cotter pin through the hole prepared in the fastening parts. While doing this, be very careful with the forked end of the cotter pin, ensuring it faces the intended bending direction.
Once the cotter pin is inserted, use pliers to gently grip the split end and slowly bend it back into the component to form a secure latch. This process is as much about controlling the force to avoid damaging the cotter pin and fastening the part as it is about making sure the split end fits snugly on the part surface.
If the cotter pin appears too long after insertion, extending beyond the component's boundary, it should be trimmed with tools such as diagonal cutters. Be very careful when trimming to avoid creating sharp edges that could lead to accidents or component jamming.
After trimming is complete, check the fixing of the cotter pin again to ensure that everything is properly installed.
Why Choose Zeyao as Your Custom Pin Manufacturer?
With over 20 years of experience in custom fastener manufacturing, Zeyao provides reliable OEM and ODM pin solutions for global industrial customers. We specialize in producing standard and non-standard pins with consistent quality, flexible customization, and stable production capacity.
20+ Years Manufacturing Experience
With deep experience in precision fastener production, we understand different industry requirements and provide suitable pin solutions for automotive, machinery, construction, and other applications.
OEM & ODM Customization
We support custom pins based on your drawings, samples, or specifications, including custom sizes, materials, tolerances, surface treatments, and packaging.
Advanced Production Capability
Equipped with 160+ production machines, Zeyao supports prototype development, small-batch orders, and large-scale production while maintaining consistent quality.
Strict Quality Control
We conduct inspections throughout the manufacturing process, including material verification, dimensional inspection, and surface quality checks to ensure every pin meets customer requirements.
One-Stop Pin Manufacturing Solution
From design evaluation and material selection to production and delivery, Zeyao provides complete manufacturing support to help customers achieve reliable fastening solutions.
Our Certificate
FAQ
We're professional pin manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized pin made in China here from our factory.
