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Hex, Torx Keys

Image Part Number Description / PDF Quantity Rfq
35410

35410

Wiha

.050 HEX LKEY NICKL LONG 10PK

5
35153

35153

Wiha

HEX KEY L SHAPE 1/8" 2.3"

292
35127

35127

Wiha

HEX METRIC L-KEY 5/16"

0
33424

33424

Wiha

HEX KEY T-HANDLE 7/8"

0
36350

36350

Wiha

TORX KEY L SHAPE T50 3.74"

0
33444

33444

Wiha

HEX KEY T-HANDLE 2.5MM

3
36480

36480

Wiha

TORX KEY T-HANDLE T10 3.94"

0
36977

36977

Wiha

HEX KEY L SHAPE 9/64"

0
36607

36607

Wiha

TORXPLUS KEY L SHAPE IP7 2.68"

0
36649

36649

Wiha

TORX KEY L SHAPE T9 4.17"

0
35159

35159

Wiha

HEX KEY L SHAPE 3/16" 2.76"

39
33450

33450

Wiha

HEX KEY T-HANDLE 5MM

0
33446

33446

Wiha

HEX KEY T-HANDLE 3MM

8
36632

36632

Wiha

TORX KEY L SHAPE T10 4.75"

0
66952

66952

Wiha

HEX KEY L SHAPE 7/64" 4.3"

9
36953

36953

Wiha

HEX KEY L SHAPE 1/8" 4.6"

0
36973

36973

Wiha

HEX KEY L SHAPE 5/64"

0
36110

36110

Wiha

TORXPLUS KEY L SHAPE IP10 2.01"

0
13659

13659

Wiha

HEX KEY L SHAPE 10MM 8.7"

0
36625

36625

Wiha

TORXPLUS KEY L SHAPE IP25 3.86"

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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