Stainless Steel Plain Washer, 0.8mm Thickness, M4 (Form A), A4 316

RS Pro

Product Information

Stainless Steel Type:
A4 316
Finish:
Plain
Standards Met:
DIN 125A
Inside Diameter:
4.3mm
Material:
Stainless Steel
Thickness:
0.8mm
For Screw/Bolt Size:
M4
Outside Diameter:
9mm
Washer Type:
Plain
RoHs Compliant
Checking for live stock

The 189-636 plain washer is fabricated from A4 (316) stainless steel and is engineered to provide durable load distribution and corrosion resistance in demanding applications. It aligns reliably under nuts and bolts without adding unnecessary stack height or clearance issues. Designed explicitly for M4 bolts (Form A) with DIN 125A standard dimensions, it features an inside diameter of 4.3 mm, an outside diameter of 9.0 mm, and a nominal thickness of 0.8 mm.

Unique Features and Benefits of this Steel Washer

  • Manufactured in A4 (316) stainless steel for excellent corrosion resistance.
  • Sized for M4 fasteners with 4.3 mm inside diameter and 9.0 mm outside diameter.
  • 0.8 mm thickness (Form A) ensures a consistent fit in standard assemblies.
  • Plain finish supports clean installation and high compatibility.
  • Conforms to DIN 125A standard, simplifying specification and sourcing.
  • Ideal for use where durability and environmental resilience are required.

Optimised for Reliable Assembly and Load Distribution

Designed to sit between the bolt head or nut and the material surface, this robust washer helps distribute clamping forces over a wider area, reducing stress and surface deformation. It offers high chemical and marine-environmental resilience, making it suitable for outdoor, food-processing, marine, or chemical installations.

What to Seal with this Washer?

  • Load and stress distribution under M4 bolts in machines, panels, and frames.
  • Assemblies exposed to moisture, salt, or corrosive environments (marine, offshore, chemical).
  • Precision-machined equipment, instrumentation, and control enclosures.
  • Food-industry or hygienic-zone fastening.
  • Preventing material indentation or wear under repeated fastener cycles.
  • OEM and industrial production environments.

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RS PRO Datasheet(Technical Reference)
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Fasteners Selection Guide 56 Pages(Technical Reference)
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RS Pro Datasheet(Technical Reference)

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FAQs

Yes. We ship 189-636 Internationally to many countries around the world.
Yes. You can also search 189-636 on website for other similar products.
We accept all major payment methods for all products including ET14011323. Please check your shopping cart at the time of order.
We use our internationally recognized delivery partners UPS/DHL. Collection of ET14011323 can also be arranged for the customer by international shipments through contacting our customer support team. Additionally, you can also search"RS Pro" products on our website by using Enrgtech's Unique Manufacturing Part Number ET14011323.
You can order RS Pro brand products with 189-636 directly through our website or call us at +44 (0) 3303 800 157 or email our support team at sales@enrgtech.co.uk.
Yes. Our products in Washers category are shipped in lowest possible time.
You will get a confirmation email regarding your order of Stainless Steel Plain Washer, 0.8mm Thickness, M4 (Form A), A4 316. You can also check on our website or by contacting our customer support team for further order details on Stainless Steel Plain Washer, 0.8mm Thickness, M4 (Form A), A4 316.