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Hex, Torx Keys

Image Part Number Description / PDF Quantity Rfq
35243

35243

Wiha

HEX KEY L SHAPE 9/64" 3.94"

0
37040

37040

Wiha

TORXPLUS KEY FLAG HNDL IP5 2.64"

0
35202

35202

Wiha

HEX KEY L SHAPE 2MM 3.9"

0
35317

35317

Wiha

HEX KEY L SHAPE 12MM 4.8"

0
35214

35214

Wiha

HEX KEY L SHAPE 8MM 7.72"

0
35221

35221

Wiha

HEX KEY L SHAPE 14MM 10.91"

0
36450

36450

Wiha

TORX KEY T-HANDLE T50 5.91"

0
35340

35340

Wiha

HEX KEY L SHAPE 1/4" 3.47"

0
35320

35320

Wiha

HEX KEY L SHAPE 19MM 6.93"

0
36940

36940

Wiha

HEX KEY L SHAPE 0.05" 2.8"

0
35333

35333

Wiha

HEX KEY L SHAPE 3/32" 2.05"

0
35222

35222

Wiha

HEX KEY L SHAPE 3/32" 3.35"

0
35227

35227

Wiha

HEX KEY L SHAPE 19MM 14"

0
36942

36942

Wiha

HEX KEY L SHAPE 5/64" 3.5"

0
35341

35341

Wiha

HEX KEY L SHAPE 5/16" 3.86"

0
37042

37042

Wiha

TORXPLUS KEY FLAG HNDL IP6 2.64"

0
35342

35342

Wiha

HEX KEY L SHAPE 3/8" 4.2"

0
36941

36941

Wiha

HEX KEY L SHAPE 1/16" 3.1"

0
37044

37044

Wiha

TORXPLUS KEY FLAG HNDL IP7 2.64"

0
35237

35237

Wiha

HEX KEY L SHAPE 3/32" 3.35"

0

Hex, Torx Keys

1. Overview

Hex (hexagonal) and Torx (star-shaped) keys are precision hand tools designed to drive bolts and screws with hexagonal or six-lobed (Torx) socket heads. These tools are critical in modern mechanical assembly, repair, and maintenance due to their high torque transmission efficiency and reduced risk of cam-out compared to traditional slotted or Phillips drives.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Standard Hex KeysSimple L-shaped design with hexagonal cross-sectionGeneral machinery assembly, furniture installation
Ball-End Hex KeysOne end with 7 angled ball tip for angled insertionAutomotive engine compartments, tight spaces
Insulated Torx Keys500V insulation rating with ergonomic handlesElectrical equipment maintenance, HVAC systems
Multi-Bit Torx SetsInterchangeable bits with magnetic retentionIndustrial machinery, aerospace components

3. Structure and Composition

Typical construction features:

  • High-grade alloy steel (e.g., Chrome Vanadium, S2 Steel) with heat treatment (HRC 45-60)
  • Surface treatments: Black oxide, nickel plating, or powder coating for corrosion resistance
  • Ergonomic TPR/PVC handles with anti-slip texture
  • Precision-machined driving ends with 0.0005" dimensional tolerance

4. Key Technical Specifications

ParameterImportance
Dimensional Accuracy ( 0.001")Ensures proper fit to prevent fastener damage
Hardness (HRC 50-60)Directly affects torque capacity and wear resistance
Surface Roughness (Ra 0.8 m)Reduces friction and prevents rust formation
Breakaway Torque RatingSpecifies maximum torque before tool failure

5. Application Fields

Major industries include:

  • Automotive: Wheel alignment systems, transmission assemblies
  • Electronics: Server rack mounting, circuit board fasteners
  • Aerospace: Aircraft panel fasteners (Torx Plus for tamper resistance)
  • Medical Equipment: MRI machine maintenance (non-magnetic variants)

6. Leading Manufacturers and Products

ManufacturerKey Products
Wiha ToolsSeries 1091 ISO 8976 precision hex keys
Snap-on IndustrialTorx T-handle sets with color-coded sizing
Bosch RexrothHydraulic system maintenance Torx wrenches
YamawakenAnti-static hex keys for semiconductor manufacturing

7. Selection Recommendations

Key considerations:

  • Match fastener size (metric vs. imperial) and drive type
  • Choose appropriate handle type: T-handle for torque, L-shape for space constraints
  • Material selection based on environment (e.g., stainless steel for marine applications)
  • Consider torque-limiting models for precision applications

8. Industry Trends

Emerging developments include:

  • Nano-coating technologies for self-lubricating surfaces
  • Integration with IoT-enabled torque sensors
  • Bi-material handles with vibration-damping properties
  • Increased adoption of security Torx (pin-driven variants) in public infrastructure
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