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Hex, Torx Keys

Image Part Number Description / PDF Quantity Rfq
36929

36929

Wiha

HEX KEY L SHAPE 3/8" 7.00"

0
36914

36914

Wiha

HEX KEY L SHAPE 2.5MM 4.45"

14
35307

35307

Wiha

HEX KEY L SHAPE 3MM 2.4"

34
36437

36437

Wiha

TORX KEY T-HANDLE T30 7.87"

4
35126

35126

Wiha

1/4 HEX KEY NICKEL SHORT 10PK

6
36609

36609

Wiha

TORXPLUS KEY L SHAPE IP9 3.07"

0
36950

36950

Wiha

HEX KEY L SHAPE 3/32" 3.9"

0
54040

54040

Wiha

HEX KEY T-HANDLE 4MM 6.93"

20
36108

36108

Wiha

TORXPLUS KEY L SHAPE IP8 1.77"

0
54082

54082

Wiha

HEX KEY T-HANDLE 8MM 7.87"

0
36461

36461

Wiha

TORXPLUS KEY T-HANDLE IP9 3.94"

0
54004

54004

Wiha

HEX KEY T-HANDLE 1/4" 5.91"

0
13650

13650

Wiha

HEX KEY L SHAPE 1.5MM 3.94"

0
36922

36922

Wiha

HEX KEY L SHAPE 10MM 9.09"

0
36645

36645

Wiha

TORX KEY L SHAPE T5 2.8"

0
66962

66962

Wiha

HEX KEY L SHAPE 7/32" 6.7"

0
37125

37125

Wiha

TORX KEY L SHAPE T25 4.2"

0
33423

33423

Wiha

HEX KEY T-HANDLE 8MM 9.13"

0
13669

13669

Wiha

HEX KEY L SHAPE 5/16" 5.7"

0
36340

36340

Wiha

TORX KEY L SHAPE T40 3.11"

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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