Locking Screw: Length Range 5mm to 30mm

Component Specifications

Definition

A specialized fastener designed for optical mounting systems, featuring fine threads, precise torque control, and anti-loosening mechanisms to maintain optical alignment under varying environmental conditions. It ensures stable positioning of lenses, mirrors, and other optical elements in scientific, industrial, and research applications.

Working Principle

Works by applying controlled clamping force through threaded engagement, creating friction and mechanical interference that prevents movement. Many designs incorporate locking features like nylon inserts, thread-locking compounds, or split-ring mechanisms to resist vibration-induced loosening.

Materials

Typically stainless steel (e.g., AISI 304, 316 for corrosion resistance), aluminum alloys (e.g., 6061-T6 for lightweight applications), or titanium for high strength-to-weight ratios. May include non-metallic elements like nylon for locking features.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Drive Type	Hex socket, Torx, or slotted
Head Style	Socket head cap, flat head, or knurled thumb screw
Thread Type	Metric fine (e.g., M4x0.5, M6x0.75) or UNC/UNF
Length Range	5mm to 30mm
Surface Finish	Passivated, anodized, or black oxide coated
Torque Specification	0.5 Nm to 5 Nm depending on size/material

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 4762, DIN 912, ISO 4026

Parent Products

This component is used in the following industrial products

Optical Mount

A precision mechanical component designed to securely hold, position, and align optical elements within a beam modulator system.

View Product Details

Engineering Analysis

Risks & Mitigation

Over-torquing can damage optical components
Material incompatibility may cause galvanic corrosion
Inadequate locking may lead to alignment drift under vibration

FMEA Triads

Trigger: Insufficient torque application
Failure: Component loosening during operation
Mitigation: Use calibrated torque tools and follow manufacturer specifications

Trigger: Vibration in operational environment
Failure: Gradual loosening over time
Mitigation: Select screws with mechanical locking features (e.g., nylon insert) or apply thread-locking compound

Trigger: Thermal cycling
Failure: Loss of clamping force due to differential expansion
Mitigation: Choose materials with similar thermal expansion coefficients to mounted components

Industrial Ecosystem

Compatible With

Optical breadboards, lens mounts, mirror mounts, kinematic platforms, optical tables

Typical Suppliers & Equivalents

Thorlabs, Newport, Edmund Optics, Standa, OptoSigma

Compliance & Inspection

Tolerance

Thread tolerance typically 6g per ISO 965-1, length tolerance ±0.1mm

Test Method

Torque-to-failure testing, vibration testing per MIL-STD-810, thermal cycling tests

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 Screw

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

AutomatedFL

Huizhou, Guangdong, CN

Also makes: Automation System, Screw Conveyor, Screw Feeder

Listed on the company's own website · profile compiled by CNFX from public sources

Listed there as: “locking screw machine”
View source page ↗ automatedfl.com · checked 2026-09-09

View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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 distinguishes a locking screw for optical mounts from standard screws?

Optical locking screws have finer threads for precise adjustment, specialized locking mechanisms to prevent vibration-induced loosening, and are made from materials with low thermal expansion to maintain alignment under temperature changes.

How do I select the right locking screw for an optical mount?

Consider thread compatibility with the mount, required torque for secure clamping without damaging components, material compatibility with the optical environment (e.g., non-magnetic, corrosion-resistant), and any locking features needed for vibration-prone applications.

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.

Locking Screw