Wrenches

Image Part Number Description / PDF Quantity Rfq
21187-0916

21187-0916

Aven

WRENCH COMBINATION 9/16" 7.31"

8

21187-0716

21187-0716

Aven

WRENCH COMBINATION 7/16" 6.17"

14

21187-0508

21187-0508

Aven

WRENCH COMBINATION 5/8" 8.17"

49

21187-0308

21187-0308

Aven

WRENCH COMBINATION 3/8" 5.69"

116

21187-0516

21187-0516

Aven

WRENCH COMBINATION 5/16" 5.13"

5120

21187-105

21187-105

Aven

WRENCH SET COMBINATION 5/16-5/8"

32

21187-0102

21187-0102

Aven

WRENCH COMBINATION 1/2" 6.88"

33

21190-6

21190-6

Aven

WRENCH ADJUSTABLE 15/16" 6"

7

21190-10

21190-10

Aven

WRENCH ADJUSTABLE 1-5/16" 10"

2

21190-12

21190-12

Aven

WRENCH ADJUSTABLE 1-1/2" 12"

2

ST8115-1006

ST8115-1006

Aven

ADJUSTABLE WRENCH 8" STAINLESS S

0

ST8115-1004

ST8115-1004

Aven

ADJUSTABLE WRENCH 6" STAINLESS S

16

ST8115-1008G

ST8115-1008G

Aven

ADJUSTABLE WRENCH 10" W/PVC GRIP

123

ST8115-1008

ST8115-1008

Aven

ADJUSTABLE WRENCH 10" STAINLESS

1

ST8115-1006G

ST8115-1006G

Aven

ADJUSTABLE WRENCH 8" W/PVC GRIP

8

ST8115-1010

ST8115-1010

Aven

ADJUSTABLE WRENCH 12" STAINLESS

177

ST8115-1004G

ST8115-1004G

Aven

ADJUSTABLE WRENCH 6" W/PVC GRIP

0

ST8115-1010G

ST8115-1010G

Aven

ADJUSTABLE WRENCH 12" W/PVC GRIP

27

21190-8

21190-8

Aven

WRENCH ADJUSTABLE 1-1/8" 8"

0

21190-12G

21190-12G

Aven

WRENCH ADJUSTABLE 1-1/2" 12"

0

Wrenches

1. Overview

Wrenches are hand tools designed to provide grip and torque for tightening or loosening nuts, bolts, and other fasteners. As fundamental components in mechanical engineering, they enable precise control of clamping forces in assembly, maintenance, and repair operations. Their importance spans across industries requiring reliable joint integrity, from automotive manufacturing to pipeline maintenance.

2. Major Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Open-End WrenchFixed jaw size with angled for quick engagementAutomotive engine assembly
Combination WrenchDual-ended (open+ring) with same size specificationsGeneral mechanical repairs
Adjustable WrenchVariable jaw width via threaded mechanismPlumbing pipe fittings
Torque WrenchPrecise torque measurement with audible/visual feedbackAerospace component installation
Socket WrenchInterchangeable socket heads with ratchet mechanismIndustrial machinery maintenance
Allen KeyHexagonal cross-section for socket head screwsFurniture assembly
Pipe WrenchSelf-tightening jaws with serrated teethSteel pipe installation

3. Structure and Components

Typical wrench construction includes: - Handle with ergonomic knurling/textured grip - Fixed/adjustable jaw assembly with hardened alloy steel - Ratchet mechanism (for socket wrenches) with pawl-and-roller system - Vernier scale (adjustable types) or torque scale (torque wrenches) - Surface treatment: Chrome vanadium finish or black oxide coating - Overload protection clutch (advanced torque models)

4. Key Technical Specifications

ParameterDescriptionImportance
Material Hardness50-60 HRC (Rockwell C scale)Determines wear resistance and torque capacity
Torque Range0-1500 N m (manual) / 0-5000 N m (hydraulic)Defines application suitability
Size Range4-60mm (metric) / 1/8"-2" (imperial)Compatibility with fastener dimensions
Accuracy Class 4% (industrial) / 1% (precision)Measurement reliability in critical applications
Surface ProtectionSalt spray resistance >500hCorrosion resistance in harsh environments

5. Application Fields

Key industries include: - Automotive manufacturing (engine assembly lines) - Aerospace maintenance (torque-critical fastening) - Construction (structural steel connections) - Pipeline systems (pressure-rated joint assembly) - Electronics (precision screw driving)
Case Study: Automotive Wheel Installation - Dual-direction torque wrenches ensure 120N m 5% clamping force consistency

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Innovation
Snap-onPro Torque Click WrenchMicrometer adjustment with 1N m increments
CraftsmanVDE Insulated Wrench Set1000V protection for electrical work
BoschECOtorque Adjustable WrenchErgonomic 3D grip design
StahlwilleNo.7602 Combination WrenchDouble-layer chrome plating

7. Selection Recommendations

Consider: 1. Matching size range to fastener specifications 2. Required torque accuracy class 3. Material compatibility (e.g. non-sparking alloys for explosive environments) 4. Ergonomic factors (weight <1.5kg for prolonged use) 5. Calibration certification requirements (ISO 6789 compliance) 6. Special features (digital readout, Bluetooth connectivity)

Industry Development Trends

Emerging patterns include: - Integration of IoT-enabled torque sensors - Adoption of carbon fiber-reinforced polymer handles - Development of multi-axis smart wrenches - Standardization of 1/2" drive systems for heavy-duty applications - Growth in cordless electric wrench market (CAGR 7.2% 2023-2028)

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