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Hex, Torx Keys

Image Part Number Description / PDF Quantity Rfq
56915

56915

Wiha

HEX KEY L SHAPE 2MM 3.98"

49
36927

36927

Wiha

HEX KEY L SHAPE 5/16" 6.75"

0
35116

35116

Wiha

HEX KEY L SHAPE 3MM 2.4"

0
36627

36627

Wiha

TORXPLUS KEY L SHAPE IP27 4.2"

0
36474

36474

Wiha

TORXPLUS KEY T-HANDLE IP27 5.91"

0
37127

37127

Wiha

TORX KEY L SHAPE T27 4.57"

0
46707

46707

Wiha

HEX KEY L SHAPE 3/32" 3.43" 10PK

0
36445

36445

Wiha

TORX KEY T-HANDLE T45 5.91"

0
46739

46739

Wiha

HEX KEY L SHAPE 8MM 6.26" 10PK

0
46713

46713

Wiha

HEX KEY L SHAPE 9/64" 4.08" 10PK

0
46703

46703

Wiha

HEX KEY L SHAPE 1/16" 3.05" 10PK

0
36972

36972

Wiha

HEX KEY L SHAPE 1/16"

0
35147

35147

Wiha

HEX KEY L SHAPE 5/64" 1.9"

0
37016

37016

Wiha

TORX KEY FLAG HANDLE T6 2.64"

0
56913

56913

Wiha

HEX KEY L SHAPE 3/8"

0
36535

36535

Wiha

TORX KEY WING HANDLE T20 3.15"

0
46701

46701

Wiha

HEX KEY L SHAPE 0.05" 2.82" 10PK

0
36913

36913

Wiha

HEX KEY L SHAPE 2MM 3.98"

0
35334

35334

Wiha

HEX KEY L SHAPE 7/64" 2.12"

0
56904

56904

Wiha

HEX KEY L SHAPE 3/32"

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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