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RS PRO Black 4-Arm Clamping Knob, M8 Threaded Stud, 25mm Thread Length, 50 mm Diameter 686-648
Specifications
| Country of Origin | China |
|---|---|
| Brand | RS PRO |
| Colour | Black |
| Model | 686-648 |
| Mount Type | Threaded Stud |
| Thread Size | M8 |
| Thread Length | 25mm |
| Insert Material | Alloy |
| Knob Shape | 4-Arm |
| Knob Diameter | 50 mm |
| RS PRO Black 4-Arm Clamping Knob, M8, Threaded StudBrand | RS PRO |
Key Features
- The knob is designed with a 4-arm star shape for comfortable grip and efficient torque application.
- Thread length is 25mm with an M8 thread size suitable for robust mounting.
- Constructed with a wood-filled phenolic body and zinc-plated steel threaded stud for superior wear resistance.
- Ideal for use in machinery, clamps, fixtures, access doors, and panels in both domestic and industrial settings.
- Resistant to weak acids and chlorinated hydrocarbons, tolerating working temperatures from -30°C to +140°C.
- Manufactured to BS771 standards ensuring quality and performance reliability.
- Black colour finish enhances aesthetic and corrosion resistance.
- Knob diameter measures 50 mm for easy handling.
Product Description
RS PRO 686-648 Black 4-Arm Clamping Knob, M8 Threaded Stud is designed for industrial and mechanical applications requiring a secure and ergonomic fastening solution.
This 4-arm star-shaped handwheel knob provides an easy-to-grip shape that enhances user comfort and torque transfer when tightening, loosening, or adjusting components. The threaded stud measures 25mm in length with an M8 size, making it compatible with various mounting needs.
The knob body is made from a wood-filled phenolic thermoplastic, combining impact resistance and durability. The threaded stud is made from zinc-plated steel providing excellent wear resistance to prevent thread damage in repeated use.
These knobs are widely used in applications such as access doors, machine fixtures, clamps, and panel fastenings in industrial machinery as well as domestic equipment.
The product meets BS771 standards and withstands a temperature range from -30°C to +140°C. It also resists weak acids and chlorinated hydrocarbons, making it suitable for harsh environments.
The black finish provides additional corrosion resistance and aesthetic appeal. The knob diameter of 50 mm offers an ergonomic grip for efficient manual operation. The 4-arm star shape delivers ergonomic comfort and maximizes applied torque.
Wood-filled phenolic knob body ensures durability and impact resistance. Zinc-plated steel threaded stud provides long-lasting thread durability. Meets BS771 standards for quality assurance. Wide temperature tolerance from -30°C to +140°C for varied environments.
Resistance to weak acids and chlorinated hydrocarbons enhances chemical durability. Ideal for industrial machines, clamps, access doors, and panel fixings. Black color enhances corrosion resistance and visual appeal.
This RS PRO clamping knob is a reliable manual fastening component for manufacturing, construction, machinery maintenance, and mechanical engineering uses. Find more reliable industrial hardware products in the RS PRO range at EnvMart.
Explore more products in our Clamping Knobs category.
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Frequently Asked Questions
The clamping knob features an M8 thread size, making it suitable for various mounting applications.
The threaded stud has a length of 25mm, providing a secure fit for mounting purposes.
This model has a diameter of 50 mm, which facilitates an ergonomic grip for manual operation.
The knob body is made from wood-filled phenolic thermoplastic, while the threaded stud is constructed from zinc-plated steel for enhanced wear resistance.
It can withstand temperatures ranging from -30°C to +140°C, making it suitable for various environmental conditions.
This unit features a 4-arm star shape, which provides a comfortable grip and efficient torque application during use.
The product is manufactured to BS771 standards, ensuring quality and performance reliability.
The country of origin for this model is China.
The black finish enhances corrosion resistance and provides aesthetic appeal, making it suitable for various applications.
This model uses a threaded stud for mounting, allowing for secure attachment in various applications.
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