Clevis: Component Specs, Materials & Applications

Component Specifications

Definition

A clevis is a U-shaped mechanical connector typically made from forged or machined metal, featuring two parallel arms with aligned holes for a clevis pin or bolt. It forms a pivotal joint when assembled with a clevis pin and cotter pin or retaining ring, allowing rotational movement while transmitting tensile or compressive loads. Commonly used in linkage systems, control rods, and suspension assemblies where adjustable or detachable connections are required.

Working Principle

The clevis operates as a simple pivot joint by connecting two components via a pin through its U-shaped body. The pin acts as a rotational axis, allowing angular movement while the clevis arms distribute load evenly. When secured with a cotter pin or retaining mechanism, it prevents accidental disassembly while maintaining flexibility for maintenance and adjustment.

Materials

Typically carbon steel (AISI 1018, 1045), alloy steel (4140, 4340), stainless steel (304, 316), or aluminum alloys (6061-T6). Forged or machined with heat treatment (quenching and tempering) for strength. Surface treatments include zinc plating, galvanizing, or powder coating for corrosion resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Finish	Zinc-plated, hot-dip galvanized, or painted
Pin Diameter	Standard sizes: 1/4", 5/16", 3/8", 1/2", etc.
Arm Thickness	Varies by application (typically 3-20mm)
Load Capacity	Rated by working load limit (WLL) and ultimate tensile strength (UTS)
Temperature Range	-40°C to +200°C for standard materials

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 2341, DIN 71752, SAE J429, ASTM A307

Parent Products

This component is used in the following industrial products

Hinge Joints

Mechanical joints that allow rotational movement between connected boom sections.

View Product Details

Engineering Analysis

Risks & Mitigation

Pin shear failure under overload
Corrosion in harsh environments
Fatigue cracking at stress points
Improper installation leading to disengagement

FMEA Triads

Trigger: Excessive load beyond rated capacity
Failure: Arm deformation or pin shearing
Mitigation: Use clevis with appropriate WLL rating, implement load monitoring, regular inspection

Trigger: Corrosion from moisture or chemicals
Failure: Reduced cross-section and strength loss
Mitigation: Select corrosion-resistant materials (stainless steel), apply protective coatings, routine maintenance

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Hole diameter tolerance: H9 for standard applications, H7 for precision. Pin fit: Clearance fit for easy assembly, transition fit for minimal play.

Test Method

Proof load testing per ISO 2341, visual inspection for defects, dimensional verification with calipers, material certification per ASTM standards.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Clevis

Manufacturer profiles associated with Clevis.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the difference between a clevis and a shackle?

A clevis has a U-shape with holes in both arms for a pin, designed for inline connections in linkages. A shackle typically has a rounded shape and is used for lifting or rigging with a screw pin or bolt-type closure.

How do you select the right clevis size?

Choose based on pin diameter (matching the rod end), load requirements (check WLL rating), material compatibility (environmental conditions), and arm thickness for the application's shear strength needs.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Clevis