China Pin Manufacturers Suppliers Factory - Wholesale Pin Made in China

Your Professional Pin and Key Manufacturer

Wuxi Lemar Metal Products Co., Ltd. is a professional fastener system service group integrating scientific research, manufacturing, sales and logistics. It follows the business philosophy of "striving for excellence and adhering to integrity" and has established a good image in the field of fastener manufacturing and sales. It has established long-term cooperative relationships with major well-known logistics brands at home and abroad to ensure that products are delivered to customers at the fastest speed and are well received by users.

Shear Spring Pin
No：LM-1542. Material:Iron\Stainless Steel\Aluminum. Function:Fixation Adjust. Type:Tooth Pin
Toothed Elastic Pin
No：LM-1541. Function:Fixation Adjust. Type:Tooth Pin. Application:Machine Equipment Industry
Serrated Elastic Pin
No：LM-1540Function:Fixation Adjust. Type:Tooth Pin. Application:Machine Equipment Industry
Toothed Spring Pin
No:LM-1539. Material:Iron\Stainless Steel\Aluminum. Function:Fixation Adjust. Type:Tooth Pin
Split Dowel Pins
No:LM-1490. Material:Stainless Steel. End Type:Open. Type:Spring Pins
Spring Tension Pins
No:LM-1489. Material:Stainless Steel. End Type:Open. Type:Spring Pins
Slotted Spring Tension Pins
No.:LM-1488. Material:Stainless Steel. Pin Type:Dowel,Spring. Model:Slotted Spring Tension Pins
Stainless Steel Slotted Spring Pin
No.:LM-1487. Material:Stainless Steel. Pin Type:Dowel,Spring. Model:Slotted Spring Tension Pins
Cotter Pins R Clip
No.:LM-1482. Pin Type:Hitch,Cotter. Material:Stainless Steel. Surface Treatment:Zinc plating\Nickel plating
R Retaining Pin
No.:LM-1481. Pin Type:Hitch,Cotter. Material:Stainless Steel. Surface Treatment:Zinc plating\Nickel plating
Hairpin Cotter Pins
No.:LM-1480. Pin Type:Hitch,Cotter. Material:Stainless Steel. Surface Treatment:Zinc plating\Nickel plating
R-Type Split Pin
No.:LM-1479. Pin Type:Hitch,Cotter. Material:Stainless Steel. Surface Treatment:Zinc plating\Nickel plating

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Why Choose Us

Technical team support
Possess full process manufacturing capabilities and experimental research and development capabilities for fasteners. With strong technical strength and 3D marketing network, it has more than 100,000 enterprise-level users and serves 57 industries.

Production Equipment
Our company has cold heading machines, thread rolling machines, wire drawing machines, thread rolling machines, tapping machines, vibration plate automatic assembly and other processing and feeding equipment.

Sales Market
Lemar Assisting scientific research enterprises,exported to Europe,North America, Africa, Central Asia, Middle East.

Common types

We provide the following product introduce:

Shear Spring Pin
A shear spring pin is a type of fastener, specifically a spring pin, designed to shear or break under a specific load, acting as a safety mechanism to prevent damage to more critical components in a system. They are commonly used in applications where sudden increases in force or torque are likely, allowing the pin to fail before causing harm to other parts of the machinery.

Toothed Elastic Pin
A toothed elastic pin, also known as a toothed spring pin or slotted toothed pin, is a type of mechanical fastener. It's a hollow, cylindrical pin with a longitudinal slot featuring staggered teeth. These teeth interlock when the pin is compressed, providing increased resistance to lateral movement and preventing the pin from loosening or backing out due to vibration or impact.

Split Dowel Pins
Split dowel pins, also known as spring pins or roll pins, are cylindrical fasteners with a longitudinal slot or a coiled construction. They are designed to be slightly larger than the hole they are inserted into, allowing them to compress slightly and exert outward pressure, creating a secure hold. This pressure helps them resist vibration and maintain alignment between components.

Spring Tension Pins
Spring tension pins come in many types and specifications, such as straight groove light, straight groove heavy, rolling heavy, etc., to meet the needs of different mechanical connections.These different types of the pins play their own unique roles in the mechanical design, ensuring the normal operation of the mechanical system.

R Retaining Pin
Core function of R Retaining Pin is to firmly connect two or more parts, effectively preventing relative movement or loosening between components. At the same time, thanks to its opening design, the pin also shows good elasticity, making the disassembly and reconnect easy.

Advantages of Spring Pins

Their elastic nature allows them to fit into holes without reaming.

Slotted pins can double up to increase shear strength.

They are functional in both blind and through-hole applications.

As long as they are in good condition and maintain their spring nature, they are reusable.

These pins are easy to install and simply require a straight drilled hole. Installation can be either manual or automatic.

Material of Slotted Spring Pins

Material Type	Material Grade	Hardness, Vickers		Finishes
		SPIROL Standard	ISO 8752
B High Carbon Steel	UNS G10700 / G10740	HV 458 - 560	HV 420 – 520	K Plain, Oiled
	C67S (1.1231) / C75S (1.1248)			T Mechanical Zinc
D Stainless Steel, Austenitic (Nickel)	UNS S30200 / S30400	Work Hardened	Work Hardened
	18-8 (1.4310)
C Stainless Steel, Martensitic (Chrome)	UNS S42000	HV 423 - 544	*HV 440 – 560
	X30Cr13 (1.4028)
Other materials and finishes are available to order depending on the application requirements. * Made to order

Customization Process

Requirement Discussion

Design Proposal

Our professional team will develop a design proposal and provide a quotation based on your requirements.

Sample Production

We produce samples according to the design proposal and conduct rigorous testing.

Mass Production

Upon your approval, we commence mass production to ensure timely delivery and consistent quality.

After-Sales Service

We offer ongoing technical support and service to ensure the long-term stable operation of our products.

Other Services

Our offers Slotted Spring Pins in both metric and inch sizes ranging in diameter from 1.5mm / .062" (1/16") to 12mm / .500" (1/2") in high carbon, nickel stainless steel and chrome stainless steel. Select from our expansive standard offering, or take advantage of our complimentary Application Engineering support and allow us to work with you to help determine the most appropriate Slotted Pin for your specific application and assembly needs!

If installation equipment is required, our also offers a standard comprehensive line of Pin Installation Equipment from manual to fully automatic modules, with or without out fixturing, to support your Slotted Pin assembly requirements.

Package & Delivery

Package Size:	10.00cm * 10.00cm * 10.00cm
Package Gross Weight:	5.000kg

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FAQ

Q: What are spring pins used for?

A: Spring pins, also known as roll pins or slotted spring pins, are versatile mechanical fasteners used for joining, positioning, and securing parts together in various applications. Their hollow, slotted construction allows them to compress when inserted into a hole, creating a self-retaining, resilient connection.

Q: What are the advantages of using spring pins as fasteners?

A: Spring Pins exert a constant radial tension against the hole wall and can protect the host component from incurring deformation or other permanent damage to the hole. Thanks to its flexible diameter, Spring Pins also allow for a much wider hole tolerance, lowering the manufactured cost of the host component.

Q: What are the different types of spring pins?

A: Introduction to Spring Pins
They are crafted from alloy steel, carbon steel, and stainless steel and feature spring-like elastic properties. They are often used as locking devices, positioning points, anti‑chafing surfaces, shafts, or sleeves for wiring. Spring pins are typically split into two types: slotted and coiled.

Q: How do spring-loaded pins work?

A: Spring-loaded pins, like pogo pins and quick-release pins, utilize a spring to maintain a connection or locking mechanism. When force is applied, the spring compresses, allowing movement. When the force is released, the spring expands, creating pressure to hold the pin in place or maintain electrical contact.

Q: Are you manufacturer or trading company?

A: We are manufacturer.

Q: What's your best delivery time?

A: Within 15-30 days.

Q: What is the quality control of your product?

A: Follow strictly quality control measures for implementation,

Q: Will your company provide free sample?

A: It depends on which sort of item you want to get. Some can be provided free of charge, however, the client shall assume the shipping fees himself.

Q: Is OEM open to clients?

A: Yes, we can provide both OEM and ODM service.

Q: How can our company be your distribution partner?

A: We welcome you to be our distributor. For further details, please contact us.

Q: What is the payment of sample?

A: T/T and Alipay both acceptable.

Q: What is your sample policy?

A: If we have stock, we can provide samples, but the customer must pay the sample fee and express fee Question.

Q: Have you tested all your goods before shipment?

A: Yes, we will conduct 100% test before delivery, and we will send detailed photos of parts for your approval Question.

We're well-known as one of the leading pin manufacturers and suppliers in China. If you're going to wholesale high quality pin made in China, welcome to get pricelist and free sample from our factory. Also, OEM service is available.

Belt Press Screw Spring Kit, R Clips Cotter Pin, pin

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