Locking Fastener: Torque Range 0.5-10 Nm, Thread Size M3-M8

Component Specifications

Definition

A precision-engineered locking fastener used in syringe holder/clamp assemblies to prevent unintended movement or loosening during operation. It employs mechanical locking mechanisms to maintain consistent clamping force and positional accuracy, ensuring reliable performance in automated fluid handling systems.

Working Principle

Utilizes thread deformation, nylon inserts, or chemical adhesives to create resistance against vibrational loosening. Some designs incorporate prevailing torque features or secondary locking elements that engage when fully tightened.

Materials

Stainless steel (AISI 304/316), alloy steel with corrosion-resistant coatings, or engineered polymers for specific applications.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Thread Size	M3-M8
Torque Range	0.5-10 Nm
Locking Torque	20-30% above standard fasteners
Temperature Range	-40°C to 200°C
Vibration Resistance	Meets DIN 25201 standards

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 898-1, DIN 6921, ISO 16047

Parent Products

This component is used in the following industrial products

Syringe Holder/Clamp

A mechanical component designed to securely hold and position a syringe within a syringe pump assembly.

View Product Details

Engineering Analysis

Risks & Mitigation

Over-torquing can damage locking features
Incompatible materials may cause galvanic corrosion
Improper installation reduces locking effectiveness

FMEA Triads

Trigger: Vibrational forces from equipment operation
Failure: Gradual loosening of fastener
Mitigation: Use locking fasteners with proven vibration resistance; implement regular torque verification procedures

Trigger: Material fatigue from repeated sterilization cycles
Failure: Cracking or deformation of fastener
Mitigation: Select corrosion-resistant materials; establish replacement schedules based on usage cycles

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.05 mm for critical dimensions; thread pitch tolerance per ISO 965

Test Method

Vibration testing per DIN 25201; torque-tension testing per ISO 16047; 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.

Compare the published product scope and source details, then include your specifications and quantity in an enquiry.

Manufacturers of Locking Fastener

Manufacturer profiles associated with Locking Fastener.

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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 makes locking fasteners different from standard fasteners?

Locking fasteners incorporate design features (thread deformation, nylon inserts, chemical adhesives) that create additional resistance against vibrational loosening, maintaining clamping force in dynamic applications.

How do I select the right locking fastener for syringe holder applications?

Consider thread size compatibility, required torque values, material compatibility with sterilization processes, and vibration resistance requirements based on equipment specifications.

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 Fastener