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Hex, Torx Keys

Image Part Number Description / PDF Quantity Rfq
33420

33420

Wiha

HEX KEY T-HANDLE 3/32"

14
36980

36980

Wiha

HEX KEY L SHAPE 7/32"

0
36484

36484

Wiha

TORX KEY T-HANDLE T27 5.91"

0
36638

36638

Wiha

TORX KEY L SHAPE T40 8.27"

0
56905

56905

Wiha

HEX KEY L SHAPE 7/64"

0
36949

36949

Wiha

HEX KEY L SHAPE 1/8" 4.6"

9
35404

35404

Wiha

3MM HEX KEY NICKEL LONG 10PK

6
33417

33417

Wiha

HEX KEY T-HANDLE 6MM 15"

28
35319

35319

Wiha

HEX KEY L SHAPE 17MM 6.14"

0
13673

13673

Wiha

HEX KEY L SHAPE 7/64" 3.70"

0
35316

35316

Wiha

HEX KEY L SHAPE 11MM 4.53"

0
66920

66920

Wiha

HEX KEY L SHAPE 4MM 5.43"

3
36330

36330

Wiha

TORX KEY L SHAPE T30 2.87"

0
36911

36911

Wiha

HEX KEY L SHAPE 1.5MM 3.58"

18
36561

36561

Wiha

TORX KEY FLAG HANDLE T15 3.15"

0
36328

36328

Wiha

TORX TR KEY L SHAPE T10S 2.01"

291
36130

36130

Wiha

TORXPLUS KEY L SHAPE IP30 2.87"

0
36958

36958

Wiha

HEX KEY L SHAPE 7/32" 6.7"

0
33462

33462

Wiha

HEX KEY T-HANDLE 9/64" 7.01"

100
66971

66971

Wiha

HEX KEY L SHAPE 3/8" 8.8"

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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