Description
About Linch Pin
The linch pin (also spelled lynch pin) is a small component with an outsized responsibility. It is the final lock that keeps a hitch pin from backing out, a clevis pin from disconnecting, or a three-point linkage pin from walking loose during operation. Lose a linch pin, and you risk losing the connection it secures — a scenario that can cascade into equipment separation, implement damage, and serious safety incidents. For something so inexpensive, a linch pin demands surprisingly careful manufacturing.
Jrs Farm Parts produces linch pins in our ISO-certified facility in Ludhiana, India, and exports them directly to the US agricultural and trailer parts market. Our linch pins are available in three distinct styles to cover every common retention application on American farms and job sites.
Standard linch pins feature the classic design — a straight pin body with a spring-retained locking ring that snaps over the end after insertion. These are the universal workhorses found on drawbar pins, three-point hitch pins, and countless other agricultural connections. Spring-loaded linch pins incorporate an internal spring mechanism in the locking ring itself, providing positive, rattle-free retention that is especially valued in high-vibration applications like tillage equipment and mowers. Butterfly linch pins feature a distinctive looped-wire retaining design that opens wide for easy one-handed operation — a favorite among operators who make frequent implement changes throughout the day.
Every Jrs Farm Parts linch pin is manufactured from quality steel wire and strip stock, formed to precise dimensions, and zinc-plated for corrosion resistance. The zinc plating is particularly important for linch pins, which are constantly handled, exposed to weather, and expected to function smoothly even after months in the field. Our ISO quality system ensures consistent spring tension, ring fit, and finish quality across production runs.
For US farm supply stores, equipment dealerships, and parts distributors, Jrs Farm Parts linch pins represent a smart stocking decision. They are high-turnover consumables that every farmer and equipment operator needs on hand. By sourcing directly from the manufacturer, American buyers get ISO-certified quality at pricing that supports healthy margins. It is a small part — but when it is missing, everything stops. Jrs Farm Parts makes sure your customers always have the right linch pin ready.
Frequently Asked Questions — Tractor Linch Pins
What is a linch pin?
A linch pin is a retaining pin with a formed head and a slot or hole that holds a locking ring or cotter. It is used to secure hitched implements and trailer components in place.
What styles are available?
Spring-loaded linch pins and forged linch pins are available. Spring-loaded types use an internal spring and button for quick insertion and removal.
What sizes are available?
Linch pins are produced in common diameters (typically 3/16″ to 1/2″) with lengths matched to the yoke or bracket being secured.
Are linch pins compatible with tractor hitches and trailers?
Yes. They are commonly used with hitch pins, trailer couplers, and implement hardware where a quick-release retaining pin is needed.
Do you export linch pins to the USA?
Yes. Jrs Farm Parts is an ISO-certified manufacturer in Ludhiana, India, exporting linch pins to US dealers and distributors.
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Wholesale Tractor Linch Pins for US Dealers & Distributors
Jrs Farm Parts is a dedicated forged linch pin manufacturer, producing high-tensile retaining hardware in India for global export. Our manufacturing process ensures that every ring and pin assembly provides the “click-lock” security required for high-vibration agricultural environments. We supply dealers and distributors across the USA with bulk quantities of standard and heavy-duty linch pins.
Linch Pin Sizes Chart (Standard, Spring-Loaded & Forged)
Choosing the correct pin diameter is essential for equipment safety. Review our technical dimensions below:
| Pin Diameter (Inch) | Usable Length | Typical Application |
|---|---|---|
| 3/16″ | 1-1/4″ | Small garden trailers, light duty attachments |
| 1/4″ | 1-1/2″ | Compact tractor implements, small gates |
| 5/16″ | 1-3/4″ | Mid-size tractor 3-point hitch stabilizers |
| 7/16″ | 1-3/4″ | Standard Agricultural Size (Cat 1 & 2 hitches) |
| 1/2″ | 2″ | Heavy duty construction and industrial equipment |
For a detailed breakdown of applications and compatibility, see our full Linch Pin Sizes Chart & Application Guide.
Types of Industrial-Grade Linch Pins
Standard Spring Linch Pins
The industry standard for quick-release applications. Our spring-loaded rings are tension-tested to ensure they stay closed under load.
Butterfly Linch Pins for High-Vibration Use
Featuring a unique ring shape that provides additional security against accidental opening, ideal for high-speed implements.
Heavy Duty Forged Linch Pins
Forged pin bodies offer superior shear strength for heavy row-crop and industrial machinery.
Why Choose Jrs Farm Parts as Your Linch Pin Supplier?
As an ISO 9001:2015 certified manufacturer, we guarantee consistent quality, reliable lead times, and competitive factory-direct pricing for the US market. Our export team handles all documentation for seamless shipping from India to your warehouse.




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