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Hex, Torx Keys

Image Part Number Description / PDF Quantity Rfq
36633

36633

Wiha

TORX KEY L SHAPE T15 5.35"

0
54042

54042

Wiha

HEX KEY T-HANDLE 4MM 5.91"

0
36430

36430

Wiha

TORX KEY T-HANDLE T27 3.94"

0
54030

54030

Wiha

HEX KEY T-HANDLE 3MM 5.91"

0
36947

36947

Wiha

HEX KEY L SHAPE 5/64" 3.9"

108
33412

33412

Wiha

HEX KEY T-HANDLE 5MM 15"

4
35152

35152

Wiha

HEX KEY L SHAPE 7/64" 2.12"

0
35103

35103

Wiha

2.5MM HEX KEY NICKL SHORT 10PK

20
36965

36965

Wiha

HEX KEY L SHAPE 1/4" 7.3"

0
46736

46736

Wiha

HEX KEY L SHAPE 4MM 4.45" 10PK

0
33436

33436

Wiha

HEX KEY T-HANDLE 2MM 8.9"

0
36979

36979

Wiha

HEX KEY L SHAPE 3/16"

0
66928

66928

Wiha

HEX KEY L SHAPE 6MM 7.01"

7
36635

36635

Wiha

TORX KEY L SHAPE T25 6.42"

5
46741

46741

Wiha

HEX KEY L SHAPE 10MM 7.13" 10PK

0
35308

35308

Wiha

HEX KEY L SHAPE 4MM 2.68"

0
66926

66926

Wiha

HEX KEY L SHAPE 5MM 6.22"

14
36562

36562

Wiha

TORX KEY FLAG HANDLE T20 3.15"

0
33427

33427

Wiha

HEX KEY T-HANDLE 10MM 9.4"

0
36954

36954

Wiha

HEX KEY L SHAPE 5/32" 5.70"

12

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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