RS PRO Black 4-Arm Clamping Knob, M8
- RS Stock No.:
- 0686648
- Brand:
- RS PRO
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.
Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.
RS definition of RoHS Compliance:
- The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
- and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering
The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:
| Substance | Concentration |
| Lead | 0.1% |
| Mercury | 0.1% |
| PBB (Polybrominated Biphenyls) | 0.1% |
| PBDE ( Polybrominated Diphenyl Ethers) | 0.1% |
| Hexavalent Chromium | 0.1% |
| Cadmium | 0.01% |
| DEHP (Bis (2-Ethylhexl) phthalate) | 0.1% |
| BBP (Benzyl butyl phthalate) | 0.1% |
| DBP (Dibutyl phthalate) | 0.1% |
| DIBP (Diisobutyl phthalate) | 0.1% |
The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".
RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.
| RS stock number | 0686648 |
| Product description | RS PRO Black 4-Arm Clamping Knob, M8 |
| Manufacturer / Brand | RS PRO |
RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK
Statement of Conformity
This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.
| RS stock number | 0686648 |
| Product description | RS PRO Black 4-Arm Clamping Knob, M8 |
| Manufacturer / Brand | RS PRO |
The foregoing information relates to product sold on, or after, the date shown below.
RS COMPONENTS
| Date | Nov 21, 2024 |
RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132
Country of Origin: CN
Product Details
RS PRO Phenolic Star Male Handwheel Knobs
Knobs are used in a wide variety of applications in our day-to-day lives and perform many functions, from being used as fixed handles to being used to tighten, loosen, adjust, clamp and push other components or pieces of equipment. They are used in various applications, from industrial and construction machinery to audio and visual equipment.
These star shaped handwheels – also known as multiple lobed handwheels– provide an easy-to-grip shape. This variation features four lobes, but other models will have varying numbers depending on the grip and pressure required. The knobs are fitted with a protruding screw insert (male) made from a combination of wood-filled impact-resistant thermoplastic bodies and zinc-plated steel inserts. Zinc-plated steel provides wear resistance for the threads to ensure that the threads last throughout general use and are not easily damaged or sheared.
Male knobs: M6 x 13mm (RS 686604), M6 x 25mm (RS 686610), M6 x 40mm (RS 686626), M8 x 20mm (RS 686632), M8 x 25mm (RS 686648), M8 x 40mm (RS 686654).
Features & Benefits
- Wood-filled phenolic knobs
- Zinc-plated steel threaded studs
- Made to BS771 standards
- Working temperature range of -30°C to +140°C
- Tolerant of weak acids, with excellent resistance to chlorinated hydrocarbons
Applications
These star-shaped handwheel knobs are used in a variety of applications, with the shape providing an ergonomic grip for user comfort and added torque to be applied by hand. They are commonly used as fixing or fastening solutions in a variety of industries, including:
- Access doors
- Drawers & panels (domestic and industrial)
- Clamps and fixtures
- Machinery
Specifications
| Attribute | Value |
| Brand | RS PRO |
| Thread Length | 25 mm |
| Knob Diameter | 50 mm |
| Insert Material | Alloy |
| Mounting Type | Threaded Stud |
| Colour | Black |
| Knob Shape | 4-Arm |
| Thread | M8 |
| Thread Diameter | 8 mm |
