INDUSTRY COMPONENT

Nut

A threaded fastener used with bolts or screws to secure components in mechanical assemblies.

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Component Specifications

Definition
A nut is a type of fastener with a threaded hole, typically hexagonal in shape, designed to mate with a bolt or screw to clamp parts together. In drive mechanisms like ball screws, nuts translate rotary motion into linear motion along the screw shaft, often featuring internal ball bearings for reduced friction and high precision.
Working Principle
Works by engaging with the external threads of a bolt or screw via its internal threads, creating a clamping force when tightened. In ball screw applications, the nut contains recirculating ball bearings that roll between the screw and nut threads, converting rotational force into linear movement with minimal friction.
Materials
Carbon steel (e.g., Grade 5, 8), alloy steel (e.g., 4140, 4340), stainless steel (e.g., 304, 316), brass, or nylon. For high-performance ball screw nuts, hardened steel (HRC 58-62) is common.
Technical Parameters
  • Pitch 1mm to 5mm
  • Height 5mm to 30mm
  • Thread Size M6 to M30
  • Load Capacity Up to 50 kN
  • Precision Grade C3 to C7
  • Width Across Flats 10mm to 46mm
Standards
ISO 4032, DIN 934, ISO 3408

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Nut.

nut fastener ball screw nut threaded fastener industrial nuts ISO standards DIN standards mechanical components Nut in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Drive Mechanism (e.g., Ball Screw)

A mechanical component that converts rotary motion into precise linear motion within a linear motion system.

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Lead Screw Assembly

A mechanical assembly that converts rotational motion into linear motion through a threaded screw and nut mechanism.

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Fine-Pitch Lead Screw

A precision mechanical component that converts rotational motion into linear motion with high resolution and accuracy.

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Engineering Analysis

Risks & Mitigation
  • Thread stripping under overload
  • Corrosion in harsh environments
  • Loosening from vibration
  • Misalignment causing binding
FMEA Triads
Trigger: Insufficient torque during installation
Failure: Nut loosens, leading to assembly failure
Mitigation: Use torque wrenches and follow manufacturer specs
Trigger: Exposure to corrosive chemicals
Failure: Material degradation and loss of clamping force
Mitigation: Select corrosion-resistant materials like stainless steel or apply coatings

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
ISO 4759-1 for dimensional tolerances, ±0.1mm on critical dimensions
Test Method
Torque testing per ISO 898-2, hardness testing per ISO 6508, and fatigue testing for ball screw nuts

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the difference between a standard nut and a ball screw nut?

A standard nut is for static fastening, while a ball screw nut has internal ball bearings for smooth linear motion in drive systems, reducing friction and wear.

How do I select the right nut material for my application?

Choose based on load, environment, and corrosion resistance: carbon steel for general use, stainless steel for wet conditions, and alloy steel for high stress.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

Request Manufacturing Insight for Nut

Nozzles/Strainers Nut (Ball or Lead)