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Plain Stainless Steel Crinkle Locking & Anti-Vibration Washer, M4, A2 304

Temporarily out of stock - back order for despatch 11/12/2020, delivery within 6 working days from desptach date
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Price 1 Bag of 100


(exc. VAT)


(inc. VAT)



RS Stock No.:
COO (Country of Origin):
Bag(s)Per BagPer Unit*
1 - 4PHP310.14PHP3.101
5 - 9PHP302.50PHP3.025
10 - 29PHP294.31PHP2.943
30 +PHP285.57PHP2.856
*price indicative

A2 Stainless Steel

RS PRO Stainless Steel Plain Washers
From the trusted RS PRO Brand, these stainless steel crinkle 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 from A2 stainless steel, they have an element of corrosion resistance that ensures long life and suitability for some specialistic environments such as food production.

How do they work?

RS PRO crinkle washers have advantages over plain washers in that they provide an element of locking and vibration resistance in a fastener, while still fulfilling the purposes of a plain washer, namely spacing and distributing load between the fastener and material and prevent the wear and distortion of installation surfaces over time.

Available in the following sizes;

428-616 is an M2 A2 Stainless Steel Crinkle Washer
428-622 is an M2.5 A2 Stainless Steel Crinkle Washer

428-638 is an M3 A2 Stainless Steel Crinkle Washer

428-650 is an M4 A2 Stainless Steel Crinkle Washer

428-666 is an M5 A2 Stainless Steel Crinkle Washer

428-672 is an M6 A2 Stainless Steel Crinkle Washer

428-688 is an M8 A2 Stainless Steel Crinkle Washer

428-767 is a 7/16 in A2 Stainless Steel Crinkle Washer

428-773 is a 1/2 in A2 Stainless Steel Crinkle Washer

Features and Benefits

Crinkle Washers


RS PRO crinkle washers are a useful addition to any fastener assembly. They decrease the surface load when joining materials, and they're unique shape allows for a degree of vibration protection over time. You can use them to make maintenance easier by allowing for smoother loosening and tightening of components. Crinkle washers are commonly used in many electronic, food, chemical and construction applications.

What is the difference between a crinkle washer and a wave washer?

Wave and crinkle washers are often confused as they look quite similar, but they wave washers are shaped differently and used as spring washers, while crinkle washer are more suitable for spacing applications.


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.

For Screw/Bolt SizeM4
Washer TypeCrinkle
Inside Diameter4.36mm
Outside Diameter7.99mm
MaterialStainless Steel
Stainless Steel TypeA2 304