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Threaded Shank Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

A precision-machined cylindrical component with external threads, designed to connect drill bits to the rotary-percussive drill head. It transmits rotational torque and percussive forces while maintaining alignment and preventing bit slippage during operation.

Working Principle

The threaded shank engages with corresponding internal threads in the drill chuck or holder, creating a mechanical lock that transfers rotational energy from the drill motor to the drill bit. The thread design ensures secure attachment while allowing quick bit changes.

Materials

High-strength alloy steel (e.g., 4140 or 4340), heat-treated to HRC 40-50 for optimal toughness and wear resistance. Surface treatments may include black oxide or phosphate coating for corrosion protection.

Technical Parameters

Length 30-100 mm
Thread Type Metric (e.g., M10x1.5) or Imperial (e.g., 3/8-24 UNF)
Thread Length 15-40 mm
Shank Diameter 6-25 mm
Surface Hardness HRC 40-50
Tensile Strength ≥ 1000 MPa

Standards

ISO 1173, DIN 6535

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Threaded Shank.

Parent Products

This component is used in the following industrial products

Rotary-Percussive Drill Head

A specialized drilling component that combines rotary and percussive actions to bore holes in rock formations.

View Product Details

Engineering Analysis

Risks & Mitigation

Thread stripping due to over-torquing
Fatigue failure from cyclic loading
Corrosion in wet environments

FMEA Triads

Trigger: Improper thread engagement during bit installation
Failure: Bit detachment during operation
Mitigation: Use torque wrenches for installation and implement visual inspection protocols

Trigger: Material fatigue from high-cycle percussive loads
Failure: Fracture at the thread root
Mitigation: Regular replacement based on usage hours and non-destructive testing (e.g., magnetic particle inspection)

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Thread tolerance: 6g per ISO 965-1, diameter tolerance: ±0.05 mm

Test Method

Torque testing per ISO 1173, hardness testing per ASTM E18, dimensional inspection with thread gauges

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 primary function of a threaded shank in a rotary-percussive drill head?

It securely attaches the drill bit to the drill head while transmitting both rotational torque and percussive impact forces during drilling operations.

How do I select the correct threaded shank for my drill?

Match the thread type and dimensions (e.g., M10x1.5) to your drill chuck specifications, and ensure the material and hardness meet the required operational loads and environmental conditions.

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.

Threaded Shank