INDUSTRY COMPONENT

Locking Nut or Clamp

A locking nut or clamp is a mechanical fastener used to secure components in adjustment mechanisms by preventing unintended loosening due to vibration or dynamic loads.

Component Specifications

Definition
A locking nut or clamp is a specialized fastener designed to maintain a fixed position on a threaded shaft or rod within adjustment mechanisms. It functions by creating friction or mechanical interference to resist rotational movement, ensuring that calibrated settings remain stable during operation. These components are critical in precision machinery where positional accuracy must be preserved under varying operational conditions.
Working Principle
The working principle involves creating resistance to rotational forces through methods such as elastic deformation (e.g., nylon inserts), mechanical locking (e.g., serrated teeth or prevailing torque designs), or secondary fastening (e.g., set screws or clamping mechanisms). This prevents the nut from backing off due to vibration, thermal expansion, or dynamic stresses.
Materials
Common materials include carbon steel (e.g., Grade 5 or 8), stainless steel (e.g., AISI 304 or 316), alloy steel, brass, or aluminum. Coatings may include zinc plating, galvanization, or black oxide for corrosion resistance.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Thread SizeM6 to M30 or equivalent imperial sizes
Torque Range10-200 Nm depending on size and material
Locking MechanismNylon insert, all-metal prevailing torque, or clamp-style
Temperature Range-40°C to +250°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 7042, ISO 10511, DIN 985, DIN 6927

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Over-torquing can damage threads or reduce locking effectiveness
  • Material incompatibility may lead to corrosion or failure in specific environments
  • Incorrect installation can compromise safety and mechanism accuracy
FMEA Triads
Trigger: Insufficient torque during installation
Failure: Nut loosens, causing misalignment or component detachment
Mitigation: Use calibrated torque wrenches and follow manufacturer specifications; implement regular inspection schedules
Trigger: Excessive vibration or dynamic loads
Failure: Locking mechanism degrades over time, leading to loss of clamping force
Mitigation: Select high-vibration-resistant designs (e.g., all-metal locking nuts); apply thread-locking adhesives if compatible

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Thread tolerances per ISO 965-1; dimensional accuracy within ±0.1 mm for critical applications
Test Method
Vibration testing per ISO 16130, torque-to-failure testing, and environmental exposure tests for corrosion resistance

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 Locking Nut or Clamp

Manufacturer profiles associated with Locking Nut or Clamp.

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Frequently Asked Questions

What is the difference between a locking nut and a standard nut?

A locking nut incorporates features like nylon inserts, serrated faces, or prevailing torque designs to resist loosening from vibration, whereas a standard nut relies solely on thread friction and may require additional measures like lock washers.

How do I select the right locking nut for an adjustment mechanism?

Consider factors such as load requirements, environmental conditions (e.g., temperature, corrosion), vibration levels, thread size, and compliance with industry standards like ISO or DIN to ensure reliability and safety.

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.

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