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Hex, Torx Keys

Image Part Number Description / PDF Quantity Rfq
36982

36982

Wiha

HEX KEY L SHAPE 5/16"

0
33441

33441

Wiha

HEX KEY T-HANDLE 4MM 6.93"

0
66968

66968

Wiha

HEX KEY L SHAPE 5/16" 8"

0
36957

36957

Wiha

HEX KEY L SHAPE 3/16" 6.2"

10
46737

46737

Wiha

HEX KEY L SHAPE 5MM 4.84" 10PK

0
33486

33486

Wiha

HEX KEY T-HANDLE 5/16" 6.93"

1
56916

56916

Wiha

HEX KEY L SHAPE 2.5MM 4.45"

1
33407

33407

Wiha

HEX KEY T-HANDLE 4MM 6.93"

0
36959

36959

Wiha

HEX KEY L SHAPE 3/16" 6.2"

0
35413

35413

Wiha

3/32 HEX L-KEY NICKL LONG 10PK

6
35238

35238

Wiha

HEX KEY L SHAPE 9/64" 5.32"

0
54010

54010

Wiha

HEX KEY T-HANDLE 9/64" 5.9"

0
33447

33447

Wiha

HEX KEY T-HANDLE 8MM 7.17"

0
35301

35301

Wiha

HEX KEY L SHAPE 0.7MM 1.22"

0
33410

33410

Wiha

HEX KEY T-HANDLE 5MM 7.17"

17
36478

36478

Wiha

TORXPLUS KEY T-HANDLE IP40 5.91"

0
36107

36107

Wiha

TORXPLUS KEY L SHAPE IP7 1.7"

0
36920

36920

Wiha

HEX KEY L SHAPE 4MM 5.43"

0
36608

36608

Wiha

TORXPLUS KEY L SHAPE IP8 2.9"

0
36945

36945

Wiha

HEX KEY L SHAPE 0.05" 2.8"

64

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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