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Hex, Torx Keys

Image Part Number Description / PDF Quantity Rfq
36360

36360

Wiha

TORX KEY L SHAPE T60 4.72"

0
33426

33426

Wiha

HEX KEY T-HANDLE 9/64"

0
35247

35247

Wiha

HEX KEY L SHAPE 5/8" 9.64"

0
28373

28373

Wiha

INSUALTED SLIMLINE BLADE 7 PC. S

5
54007

54007

Wiha

HEX KEY T-HANDLE 3/32" 5.9"

0
36928

36928

Wiha

HEX KEY L SHAPE 6MM 7.01"

94
36410

36410

Wiha

TORX KEY T-HANDLE T10 3.94"

0
36935

36935

Wiha

HEX KEY L SHAPE 5MM 4.84"

0
36648

36648

Wiha

TORX KEY L SHAPE T8 3.9"

0
66936

66936

Wiha

HEX KEY L SHAPE 8MM 7.8"

0
36335

36335

Wiha

TORX TR KEY L SHAPE T25S 2.48"

14
66950

66950

Wiha

HEX KEY L SHAPE 3/32" 3.9"

170
35406

35406

Wiha

5MM HEX KEY NICKEL LONG 10PK

6
36647

36647

Wiha

TORX KEY L SHAPE T7 3.43"

0
35206

35206

Wiha

HEX KEY L SHAPE 3MM 4.88"

0
35417

35417

Wiha

5/32 HEX LKEY NICKEL LONG 10PK

3
66937

66937

Wiha

HEX KEY L SHAPE 8MM 7.80"

0
33437

33437

Wiha

HEX KEY T-HANDLE 2.5MM 8.9"

0
36452

36452

Wiha

TORX KEY T-HANDLE T50 9.84"

0
33408

33408

Wiha

HEX KEY T-HANDLE 4MM 8.9"

72

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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