Stainless Steel Plain Washer, 2mm Thickness, M16 (Form B), A4 316
- RS Stock No.:
- 2484618
- 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 | 2484618 |
| Product description | Stainless Steel Plain Washer, 2mm Thickness, M16 (Form B), A4 316 |
| 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 | 2484618 |
| Product description | Stainless Steel Plain Washer, 2mm Thickness, M16 (Form B), A4 316 |
| Manufacturer / Brand | RS PRO |
The foregoing information relates to product sold on, or after, the date shown below.
RS COMPONENTS
| Date | Dec 22, 2024 |
RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132
Product Details
RS PRO Stainless Steel Plain Washers
From the trusted RS PRO Brand, these stainless steel washers are generally used with a machine threaded fastener and nut to spread the load over a greater surface area when tightening a bolt, screw or nut. As they are made of stainless steel, they have an element of corrosion resistance and are suitable for use in many environments.
Available in the following sizes:
• 189-636 is an M4 size A4 Stainless Steel Plain Washer
• 189-620 is an M3 size A4 Stainless Steel Plain Washer
• 189-642 is an M5 size A4 Stainless Steel Plain Washer
• 189-658 is an M6 size A4 Stainless Steel Plain Washer
• 248-4595 is an M2 size A4 Stainless Steel Plain Washer
• 248-4618 is an M16 size A4 Stainless Steel Plain Washer
• 248-7106 is an M2.5 size A4 Stainless Steel Plain Washer
• 797-6361 is a Form A M16 size A4 Stainless Steel Plain Washer
• 797-6364 is a Form A M10 size A4 Stainless Steel Plain Washer
• 797-6367 is a Form A M12 size A4 Stainless Steel Plain Washer
• 797-6370 is a Form A M20 size A4 Stainless Steel Plain Washer
• 797-6389 is a Form A M8 size A4 Stainless Steel Plain Washer
How do they work?
RS PRO washers are an essential part of any fastener assembly, as they serve to incorporate spacing and distribute load when placed between a nut and bolts. These washers will help prevent wear and distortion of installation surfaces over time.
Features and Benefits
• A4, 316 plain stainless steel
• Construction for durability
• Available in a range of sizes
Applications
RS PRO washers are an essential part of any fastener assembly. They decrease the surface load when joining materials, meaning there is less pressure on the material, resulting in a decrease chance of wear and tear over time. You can use them to make maintenance easier by allowing for smoother loosening and tightening of components. Plain washers are commonly used in many electronic, food, chemical and construction applications.
What is a Form A Washer?
Form A is a British Standard indicator for the metric outer diameter and thickness of a steel washer. It is a quick reference that in this case indicates a type of washer with a 'normal' diameter and thickness. Form A washers are suitable for most applications.
What is the difference between a plain washer and a penny washer?
Other than standard washers, you might also hear washers referred to as fender washers, penny washers and mudguard washers. These 'repair washers' have a larger external diameter in comparison to the inner diameter, meaning a larger distribution of surface area. They can be used with a worn fixing hole or to fasten larger surface areas.
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 |
| Outside Diameter | 30 mm |
| Finish | Plain |
| Inside Diameter | 17 mm |
| Material | Stainless Steel |
| Thickness | 2 mm |
| For Screw/Bolt Size | M16 (Form B) |
| Stainless Steel Type | A4 316 |
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