Fastener (Screw/Bolt): Component Specs, Materials & Applications

Component Specifications

Definition

A precision-engineered threaded fastener, typically a screw or bolt, designed to clamp and secure antenna components within a clamping mechanism. It ensures structural integrity, maintains precise alignment under mechanical stress and environmental conditions, and allows for controlled assembly and disassembly. In antenna systems, these fasteners are critical for maintaining signal integrity by preventing component movement that could affect performance.

Working Principle

Works by applying torque to create axial tension along the threaded shaft, which generates a clamping force between the fastener head (or nut) and the mating surface. This force secures the antenna components together, resisting shear, vibration, and thermal expansion/contraction. The thread geometry converts rotational motion into linear force, ensuring a tight, reliable joint.

Materials

Typically made from corrosion-resistant alloys such as stainless steel (e.g., AISI 304, 316), carbon steel with plating (e.g., zinc, chrome), or aluminum alloys. High-strength applications may use alloy steels (e.g., Grade 8, 10.9). Material selection depends on environmental exposure (e.g., outdoor, marine), load requirements, and weight considerations.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Finish	Zinc-plated, passivated, or galvanized
Length	10-50 mm (typical for antenna clamping)
Head Type	Hex, socket, pan, or flange
Thread Type	Metric (e.g., M6, M8) or Imperial (e.g., 1/4-20)
Strength Grade	e.g., 8.8, 10.9, or A2/A4 stainless
Torque Specification	5-30 Nm (varies by size and application)

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, ISO 4762, DIN 912, DIN 931

Parent Products

This component is used in the following industrial products

Antenna Clamping Mechanism

A mechanical component designed to securely fasten and position an antenna within an internal mounting system.

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Engineering Analysis

Risks & Mitigation

Over-tightening leading to thread stripping or component damage
Corrosion in outdoor environments reducing lifespan
Vibration-induced loosening compromising antenna alignment

FMEA Triads

Trigger: Incorrect torque application during assembly
Failure: Fastener loosening or breakage
Mitigation: Use calibrated torque tools and follow specified torque values; implement regular maintenance checks.

Trigger: Exposure to corrosive environments (e.g., saltwater, industrial chemicals)
Failure: Corrosion leading to reduced strength or seizure
Mitigation: Select corrosion-resistant materials (e.g., stainless steel A4); apply protective coatings; conduct periodic inspections.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Thread tolerance per ISO 965 (e.g., 6g for external threads), dimensional tolerances as per ISO 4759-1

Test Method

Torque testing per ISO 16047, corrosion resistance testing per ASTM B117 (salt spray), tensile strength testing per ISO 898-1

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.

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Manufacturers of Fastener (Screw/Bolt)

Manufacturer profiles associated with Fastener (Screw/Bolt).

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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 factors should be considered when selecting a fastener for an antenna clamping mechanism?

Consider material compatibility (corrosion resistance), strength grade (based on load and vibration), thread type/size, torque requirements, environmental conditions (e.g., temperature, humidity), and compliance with industry standards like ISO or DIN.

How does fastener torque affect antenna performance?

Proper torque ensures secure clamping without over-tightening, which can damage components or cause misalignment. Incorrect torque may lead to loosening under vibration, affecting antenna stability and signal accuracy.

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.

Fastener (Screw/Bolt)