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Hex, Torx Keys

Image Part Number Description / PDF Quantity Rfq
33411

33411

Wiha

HEX KEY T-HANDLE 5MM 9.13"

0
36971

36971

Wiha

HEX KEY L SHAPE 3/8" 8.8"

0
36916

36916

Wiha

HEX KEY L SHAPE 3MM 4.9"

651
36308

36308

Wiha

TORX KEY L SHAPE T8 1.77"

0
36661

36661

Wiha

TORX KEY L SHAPE T50 8.4"

0
33485

33485

Wiha

HEX KEY T-HANDLE 1/4" 6.93"

0
13671

13671

Wiha

HEX KEY L SHAPE 5/64" 3.31"

1
36637

36637

Wiha

TORX KEY L SHAPE T30 7.52"

0
33430

33430

Wiha

HEX KEY T-HANDLE 3/16"

5
36630

36630

Wiha

TORXPLUS KEY L SHAPE IP30 4.49"

0
13666

13666

Wiha

HEX KEY L SHAPE 3/16" 5.32"

0
36466

36466

Wiha

TORXPLUS KEY T-HANDLE IP15 3.94"

25
36315

36315

Wiha

TORX KEY L SHAPE T15 2.12"

0
33421

33421

Wiha

HEX KEY T-HANDLE 8MM 5.2"

0
35150

35150

Wiha

HEX KEY L SHAPE 3/32" 2.05"

0
33405

33405

Wiha

HEX KEY T-HANDLE 3MM 8.9"

0
54088

54088

Wiha

HEX KEY T-HANDLE 10MM 7.87"

0
54018

54018

Wiha

HEX KEY T-HANDLE 1/4" 7.2"

20
46732

46732

Wiha

HEX KEY L SHAPE 1.5MM 3.11" 10PK

0
33401

33401

Wiha

HEX KEY T-HANDLE 2MM 4.9"

5

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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