Complete Guide to Clevis Pins｜From Size Selection to Proper Installation
- 翰君 陳
- Sep 16
- 3 min read
In various machines and structures, the Clevis Pin is a simple yet versatile fastener.
It typically consists of a pin with a round or flat head, used together with holes and often paired with cotter pins or retaining rings for quick assembly and disassembly.
Another common variant is the Grooved Pin with Head. While it looks similar to a clevis pin, it has grooves on the body that generate extra grip during installation, improving anti-loosening performance. These two are often confused, but their functions are different.
Clevis pins are widely used for joint connections, structural fastening, and mechanical positioning, offering both easy installation and reusability.
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Key Points for Selecting Clevis Pins
Diameter vs. Hole Fit
The pin diameter must match the hole diameter. Too small → wobble; too large → won’t fit.
Length Selection
The length should be slightly longer than the total thickness of the parts, allowing a cotter pin or retaining ring to be inserted at the end.
Effective Length
The effective length (from the pin head or groove to the locking point) must be greater than the installation thickness.
Material Options
Low Carbon Steel → General structural use, economical and durable.
Medium Carbon Steel → Higher strength, suitable for moderate load connections.
Stainless Steel → Excellent corrosion resistance, ideal for outdoor, food, or humid environments.
Manufacturing Methods
Forged → Larger tolerances, rougher ends, cost-efficient for mass production (standard stock).
CNC Machined → Precision-controlled, smooth surfaces, flat ends, suitable for precision machinery and high-tech industries (custom orders).
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Proper Installation Process
Align the holeInsert the clevis pin through the assembly hole until the head rests against the surface.
Insert the locking elementInsert a cotter pin or retaining ring into the tail hole to prevent slippage.
Final checkEnsure the pin rotates freely without loosening for safe and flexible connection.
Tips
For frequent assembly/disassembly, consider quick-release pins or spring clips.
For high-load applications, use medium carbon steel or stainless steel for extra strength.
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Where Are Clevis Pins Commonly Found?
Joint connections in heavy machinery and construction equipment
Positioning and stop features in automated production lines
Automotive and motorcycle linkages
Quick-assembly and fastening in construction and agricultural machinery
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Clevis Pins vs. Grooved Pins with Head
Clevis Pin → Best for quick assembly/disassembly, allowing slight freedom of movement. Used in joints, agricultural machinery, and simple positioning.
Grooved Pin with Head → Best where anti-loosening and anti-rotation are critical. Used in precision equipment and vibration-prone structures.
In short:
Need convenience and flexibility → Choose Clevis Pin
Need firm locking and vibration resistance → Choose Grooved Pin with Head
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Why Choose Sheng Fong Precision?
Selecting clevis pins isn’t just about size—it’s about quality and reliable supply.We offer:
Full material range → Carbon steel, medium carbon steel, stainless steel, with optional surface finishes (zinc-plated, black oxide, passivation).
Wide specifications → Stocked in common sizes, supporting small-lot, diverse orders.
Strict QC → Each batch inspected for dimensional accuracy and surface finish.
Fast lead time → Urgent orders and small-volume customization supported.
Professional support → Expert guidance for size selection and application advice.
With Sheng Fong’s support, clevis pins deliver maximum performance across applications.
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📩 Contact us now for clevis pin selection advice via LINE (ID: @s9000)
🛒 Complete clevis pin specification list:
Zinc-Plated Clevis Pins → https://lihi3.me/29hRK
Stainless Steel Clevis Pins → https://lihi3.me/Jsupv
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