Bright Zinc Plated Steel Internal Tooth Shakeproof Washer, M4
- RS Stock No.:
- 0526596
- Brand:
- RS PRO
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 | 0526596 |
| Product description | Bright Zinc Plated Steel Internal Tooth Shakeproof Washer, M4 |
| 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 | 0526596 |
| Product description | Bright Zinc Plated Steel Internal Tooth Shakeproof Washer, M4 |
| Manufacturer / Brand | RS PRO |
The foregoing information relates to product sold on, or after, the date shown below.
RS COMPONENTS
| Date | Nov 25, 2024 |
RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132
Product Details
RS PRO BZP Spring Steel Lock Washer
From the trusted RS PRO brand, this external tooth lock washer is ideal for added security in fixings and fastenings. They function in the same way as a standard washer, by distributing the load of a bolt against a surface material, but have a locking action that prevents turning of the fastener, meaning there is less chance of the fixing loosening over time or under repeated stress. As such they are commonly used wherever vibration is a factor.
There are various sizes available;
• 526-574 is an M3 internal tooth shakeproof washer
• 526-596 is an M4 internal tooth shakeproof washer
• 526-603 is an M5 internal tooth shakeproof washer
• 526-619 is an M6 internal tooth shakeproof washer
• 530-129 is an M8 internal tooth shakeproof washer
• 530-135 is an M10 internal tooth shakeproof washer
• 530-141 is an M12 internal tooth shakeproof washer
• 193-3453 is an M16 internal tooth shakeproof washer
• 193-3454 is an M20 internal tooth shakeproof washer
• 193-3455 is an M24 internal tooth shakeproof washer
Features and Benefits
Shakeproof Washers
External Bright zinc plated for corrosion-resistance
Ideal for dynamic loads and vibration environments
Applications
Internal tooth lock washers are a type of washer specifically designed to prevent loosening in smaller fastener heads (as opposed to external tooth types that are better for smaller fastener heads.) They are designed to fortify fastenings against dynamic loads, and as such are used in machinery or materials that are often subjected to vibration or continuous movement. They might typically be used in;
Domestic appliances such as washers and dryers
Industrial machinery
Automotive industries
Why RS PRO?
RS PRO aims to be your go-to brand for reliability and value for money. We source great parts at great prices and test everything with our in-house experts to ensure the quality you need. When it comes to tools and fasteners, we know that versatility and dependability are what you need. As such, we stock a variety of mainstay and specialist fasteners and couplers to suit any application. Whether you're a professional electrician, plumber, builder or DIY enthusiast, RS PRO is here to support you.
Specifications
| Attribute | Value |
| Brand | RS PRO |
| Material | Steel |
| Finish | Bright Zinc Plated |
| Thickness | 0.5 mm |
| For Screw/Bolt Size | M4 |
| Washer Type | Internal Tooth |
| Inside Diameter | 4.3 mm |
| Outside Diameter | 8 mm |
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