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Hex, Torx Keys

Image Part Number Description / PDF Quantity Rfq
33481

33481

Wiha

HEX KEY T-HANDLE 5/32" 6.93"

1
36659

36659

Wiha

TORX KEY L SHAPE T40 7.91"

0
36415

36415

Wiha

TORX KEY T-HANDLE T15 3.94"

25
36901

36901

Wiha

HEX KEY L SHAPE 0.05" 2.82"

24
13656

13656

Wiha

HEX KEY L SHAPE 6MM 5.51"

0
35225

35225

Wiha

HEX KEY L SHAPE 2.5MM 4.33"

0
36615

36615

Wiha

TORXPLUS KEY L SHAPE IP15 3.47"

39
54005

54005

Wiha

HEX KEY T-HANDLE 5/16" 5.91"

0
35318

35318

Wiha

HEX KEY L SHAPE 14MM 5.39"

0
33465

33465

Wiha

HEX KEY T-HANDLE 5/32" 7.01"

56
54009

54009

Wiha

HEX KEY T-HANDLE 1/8" 5.9"

0
35224

35224

Wiha

HEX KEY L SHAPE 7/64" 3.62"

0
36442

36442

Wiha

TORX KEY T-HANDLE T40 7.87"

0
46735

46735

Wiha

HEX KEY L SHAPE 3MM 3.94" 10PK

0
36904

36904

Wiha

HEX KEY L SHAPE 1.5MM 3.54"

0
36559

36559

Wiha

TORX KEY FLAG HANDLE T9 3"

0
35321

35321

Wiha

HEX KEY L SHAPE 22MM 7.68"

0
33477

33477

Wiha

HEX KEY T-HANDLE 5/16" 7.01"

0
33414

33414

Wiha

HEX KEY T-HANDLE 6MM 5.2"

0
54025

54025

Wiha

HEX KEY T-HANDLE 2.5MM 5.91"

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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