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Hex, Torx Keys

Image Part Number Description / PDF Quantity Rfq
35217

35217

Wiha

HEX KEY L SHAPE 10MM 8.62"

0
35105

35105

Wiha

3MM HEX KEY NICKEL SHORT 10PK

2
13668

13668

Wiha

HEX KEY L SHAPE 1/4" 5.32"

0
35120

35120

Wiha

HEX KEY L SHAPE 4MM 2.68"

0
33433

33433

Wiha

HEX KEY T-HANDLE 1/4"

0
36976

36976

Wiha

HEX KEY L SHAPE 1/8"

0
66959

66959

Wiha

HEX KEY L SHAPE 3/16" 6.2"

4
66912

66912

Wiha

HEX KEY L SHAPE 2.5MM 4.37"

30
33448

33448

Wiha

HEX KEY T-HANDLE 4MM

0
36329

36329

Wiha

TORX TR KEY L SHAPE T15S 2.12"

0
36655

36655

Wiha

TORX KEY L SHAPE T30 7.24"

0
35114

35114

Wiha

1/16 HEX KEY NICKEL SHORT 10PK

5
35407

35407

Wiha

6MM HEX KEY NICKEL LONG 10PK

6
36921

36921

Wiha

HEX KEY L SHAPE 8MM 8.11"

0
46733

46733

Wiha

HEX KEY L SHAPE 2MM 3.31" 10PK

0
35109

35109

Wiha

6MM HEX KEY NICKEL SHORT 10PK

6
66908

66908

Wiha

HEX KEY L SHAPE 2MM 3.9"

64
36960

36960

Wiha

HEX KEY L SHAPE 1/4" 7.3"

0
36556

36556

Wiha

TORX KEY FLAG HANDLE T6 2.76"

0
36620

36620

Wiha

TORXPLUS KEY L SHAPE IP20 3.7"

9

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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