Clamping Bolts/Screws: Clamping Force 2,000-15,000 N

Component Specifications

Definition

Clamping bolts and screws are specialized fastening components designed to securely hold blades in blade holder assemblies through controlled clamping force. These components ensure precise blade positioning, vibration damping, and operational safety in industrial machinery by maintaining consistent pressure distribution across the blade interface.

Working Principle

These fasteners operate on the mechanical advantage principle, converting rotational torque into axial clamping force through threaded engagement. The tension created compresses the blade against the holder, creating friction that prevents movement during operation while allowing controlled release for blade changes.

Materials

Typically manufactured from alloy steels (AISI 4140, 4340) or stainless steels (AISI 304, 316) with hardness ratings of 32-38 HRC. High-performance variants may use titanium alloys or precipitation-hardened steels for extreme conditions.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Head Style	Hex socket, flange head, or shoulder bolt designs
Thread Type	Metric fine thread (M8x1.0 to M20x1.5)
Torque Range	15-120 Nm depending on size
Clamping Force	2,000-15,000 N
Surface Treatment	Zinc plating, black oxide, or phosphate coating

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 898-1, DIN 931

Parent Products

This component is used in the following industrial products

Blade Holder/Assembly

A mechanical assembly that securely positions and holds the cutting blade within a precision shear system.

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Engineering Analysis

Risks & Mitigation

Over-torquing causing thread stripping
Under-torquing leading to blade slippage
Fatigue failure from cyclic loading
Corrosion in humid environments

FMEA Triads

Trigger: Improper torque application during installation
Failure: Blade misalignment or complete detachment during operation
Mitigation: Use calibrated torque wrenches and follow manufacturer specifications; implement torque verification procedures

Trigger: Material fatigue from repeated stress cycles
Failure: Sudden bolt fracture during high-speed operation
Mitigation: Regular ultrasonic inspection for micro-cracks; replace at predetermined intervals regardless of visible wear

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Thread tolerance: 6g per ISO 965-1; Length tolerance: ±0.5mm

Test Method

Torque-to-failure testing per ISO 16047; Salt spray testing per ASTM B117 for corrosion resistance; Fatigue testing at 10^6 cycles

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 Clamping Bolts/Screws

Manufacturer profiles associated with Clamping Bolts/Screws.

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Frequently Asked Questions

What is the difference between clamping bolts and regular bolts?

Clamping bolts are engineered for precise force control and vibration resistance, featuring specific thread designs, material treatments, and torque specifications optimized for repeated clamping cycles in dynamic industrial environments.

How often should clamping bolts be inspected?

Inspect every 250 operating hours or during scheduled maintenance. Check for thread wear, corrosion, and proper torque retention. Replace immediately if elongation exceeds 0.2% of original length.

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.

Clamping Bolts/Screws