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Torque Wrench

Torque Wrench

Torque wrenches are specialized tools designed to tighten bolts, nuts, and other hardware to an exact target torque value. Using precise torque is critical for securing parts without overstraining the threads or leaving dangerous looseness. Torque wrenches allow mechanics and engineers to apply torque quickly and consistently.

 

What is Torque?

 

Torque measures the twisting or rotational force applied when tightening a bolt. It determines the tension generated on the threads and clamping force holding parts together. Excessive torque overstretches threads, while inadequate torque leads to vibrational loosening. Torque wrenches allow setting a target value to avoid these failures.

How Torque Wrenches Work

Torque wrenches have a ratcheting head calibrated to the desired torque value. As the wrench is pulled, internal springs compress. Upon reaching the preset level, the wrench head slips and emits an audible "click" to signal target torque is achieved. This prevents overtightening. Locking collars allow securing the torque setting. Most wrenches have exchangeable drive sizes like 3/8" or 1/2" to match various bolt and socket heads.

Types of Torque Wrenches

There are two main varieties:

Click Type – Discussed above, this release, and click upon reaching the set torque. Most common and inexpensive.

Beam Type – A pointer on a gauge indicates the torque applied on a long lever arm. Higher precision than click types.

Proper Use and Calibration

For continued accuracy:

Always pull smoothly on the handle without jerking. Let the wrench click rather than push through.

Periodically check calibration using a torque testing rig. Wrenches can go out of spec over time.

Clean and lubricate the ratchet mechanism to prevent jamming.

Return the wrench setting to zero after use to avoid deforming the spring.

In summary, torque wrenches are an indispensable tool that allows mechanics and technicians to efficiently yet safely secure critical components across vehicles, machinery, and other assemblies using properly engineered torque specs. With care and calibration, torque wrenches will continue to provide precision bolt tightening and fastening integrity.

  • 1/4“ Mechanical Torque Wrench

    1/4“ Mechanical Torque Wrench

    1/4" Mechanical Torque Wrench is made of CRV material, Teeth is 45 Teeth. There is a permanent scale on the Torque Wrench, you only need to adjust to the required torque when using it. Precision machine manufacturing, small error, long operating life .The operating life of this Torque Wrench is greater than 50,000 times.

  • 3/8” Mechanical Torque Wrench

    3/8” Mechanical Torque Wrench

    This 3/8” mechanical torque wrench can be driven in both directions and has 45 teeth. The torque has three different ranges: 5~25N.m, 10~60N.m, and 20~120N.m. Don’t worry that excessive torque may cause damage. Damage wrenches and fasteners. When the preset torque value is reached, you will hear a "click" sound. At this time, you can stop your action.

  • 1/2“ Mechanical Torque Wrench

    1/2“ Mechanical Torque Wrench

    Our 1/2" Mechanical Torque Wrench has undergone rigorous testing before leaving the factory. This 1/2" Mechanical Torque Wrench can meet the standards of DIS ISO6789, ASME, B107.14 and GB/T15729. Able to accurately lock the required torque value. The anti-slip design on the handle can prevent slipping and improve work efficiency.

  • 3/4” Mechanical Torque Wrench

    3/4” Mechanical Torque Wrench

    3/4” Mechanical Torque Wrench has two different ranges: 100~600N.m and 200~800N.m. The size of this Torque Wrench is 106*23*18.5cm. The 45-tooth ratchet head supports to drive in both directions. Surface It has a scale, is not easy to wear, and can be adjusted to the torque as needed.

  • 1“ Mechanical Torque Wrench

    1“ Mechanical Torque Wrench

    This high-precision dual-range industrial-grade 1" Mechanical Torque Wrench is made of CRV material. Equipped with a 45-tooth reversible ratchet head. Professional machine manufacturing, long service life, and an operating life of more than 50,000 times.

  • 1/4” Digital Display Torque Wrench

    1/4” Digital Display Torque Wrench

    This 1/4” Digital Display Torque Wrench has an easy-to-read LCD screen. The 1/4” Digital Display Torque Wrench is available in 30N.m and 10N.m. The surface is chrome plated and matt treated. When the preset torque value is reached, Torque Wrench will remind you in time to avoid damaging the screws with excessive force.

  • 3/8“ Digital Display Torque Wrench

    3/8“ Digital Display Torque Wrench

    This 3/8" Digital Display Torque Wrench has two torque specifications: 85N.m and 135N.m Display Torque Wrench. The torque value is engraved on the surface of the wrench. You can choose the Torque Wrench you need according to your needs. When the preset is reached When the torque value is reached, the indicator light of the wrench will light up.

  • 1/2

    1/2" Digital Display Torque Wrench

    The 1/2” Digital Display Torque Wrench is ideal for use in tight work areas. Made from high quality alloy steel, it is rust and corrosion resistant. The surface is polished and easy to clean. Available in three different 1/2”torque specifications Digital Display Torque Wrench.

About Us

Established in the early 2000s, Union Hardware began as a manufacturer and distributor of fasteners and hardware tools. In 2023, we officially consolidated into a globally focused professional hardware exporter. Our expansive product range includes photovoltaic fasteners, stainless steel fasteners, highly corrosion-resistant carbon steel fasteners, and a wide selection of hand tools (Mechanic Tools, Fastening Tools, Measuring Tools, Storage Tools, Tool Sets, PTA Kits, etc. ). Our hardware solutions are trusted across the construction, machinery, automotive, and DIY sectors. With decades of expertise producing durable, reliable products, over 85% of our goods are exported internationally. Strategically located in Hangzhou Xiaoshan Industrial Zone, we are part of a vibrant manufacturing hub that promotes clustering effects and supply chain efficiency. Our modern facilities and proximity to Shanghai Port allow for seamless production, inventory management, and timely delivery to global markets. Leveraging our hard-won reputation for integrity, dependability, and unparalleled quality, Union Hardware continues pioneering hardware distribution. We remain committed to delivering ideal products, services, and solutions at competitive costs for trade specialists and DIYers worldwide.

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Torque Wrench