From all of us here at Metric, we wish you a happy and safe Labor Day.
 
We will be closing Friday 08/29/2025 at 1pm in our respective time zones and closed Monday 09/01/2025.


Due to the increasing tariffs on steel and imports from Europe and China, all prices are subject to change.
 

Metric Lock Washers


Metric lock washers are locking fasteners designed to prevent threaded fasteners, such as bolts and screws, from becoming unfastened. These washers prevent fasteners from unfastening by providing extra security against vibration and torque. There are many different types of lock washers; however, they all serve the same underlying purpose: to “lock” fasteners in place. While the most popular style of standard lock washers is the split washer, other styles include curved spring, serrated, high collar, or star lock washers.

At Metric & Multistandard, we supply a variety of metric lock washers to meet any requirements. Browse our comprehensive product catalog to view our full selection. Shop for more lock washers below. Request a quote today to begin your order.

Lock Washer Types from Metric & Multistandard

Standard Lock Washers

Standard lock washers, also known as split lock washers or round helical lock washers, are commonly used with hex head cap screws and hex nuts. These fasteners are ideal for general-purpose applications to prevent loosening from vibrations. We offer standard lock washers in a variety of sizes, ranging from 2mm to 72mm in diameter. Materials include:
  • Zinc-plated steel
  • Stainless steel
  • Bronze

Curved Spring Lock Washers

Curved spring lock washers are designed to help prevent loosening using a spring force. Their superior resistance to vibration is increasing their demand for high-stakes vibration applications. Available in diameters ranging from 2mm to 10mm, we offer curved spring lock washers in:
  • Steel zinc
  • Stainless steel

High Collar Lock Washers

High collar lock washers provide increased security against high vibrations and torque, and are often used with machine screws or socket head cap screws. With small outer diameters, they can fit in tight spaces and rely on friction to prevent loosening. Our selection of high collar lock washers ranges in diameter from 3mm to 42mm. Available materials include:
  • Black steel
  • Steel zinc
  • Stainless steel

Serrated Lock Washers

Serrated lock washers feature serrated teeth that grab onto the fasteners’ mating surface to prevent loosening. Especially useful for high-vibration environments involving machinery, vehicles, or appliances, these washers dig into the material being fastened to resist rotation. Available in diameters ranging from 2mm to 30mm, we offer serrated lock washers in:
  • Zinc-plated steel
  • Stainless steel

Star Lock Washers

Star lock washers are similar to serrated lock washers in that they feature serrated teeth that prevent loosening. However, star lock washers are available with both internal and external teeth, which can dig into both the material being fastened and the fastener itself. Ideal for high-vibration applications, we supply star lock washers with diameters ranging from 2mm to 30mm and in materials including:
  • Steel zinc
  • Stainless steel

Contact Metric & Multistandard for Metric Lock Washers

As a top supplier of metric fasteners and hardware, Metric & Multistandard is your go-to source for metric lock washers. We are proudly ISO-certified, demonstrating our commitment to supplying quality metric products. With over 5 US locations and a branch in Germany, we provide nationwide and international shipping to supply you with the metric fasteners you need, anywhere in the world.
Contact your nearest location to learn more. Request a quote to get started on your order today.

Metric and Multistandard Components Corp.

Metric and Multistandard Components Corp. is the oldest and most experienced fastener supplier of Metric Fasteners and industrial components.  Metric & Multistandard stocks over 48,000 high-quality metric fasteners and industrial components at all five of our locations.  Metric & Multistandard sales staff is technically trained to thoroughly understand the metric fasteners and industrial components that we sell.  Please click request a quote here.  To speak to a sales representative and learn more about Threaded Fasteners, please select one of our 5 US locations or 1 European location below to contact us.