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Quick Release Pins Retaining Washers

 (5 product groups)

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Indexing Plungers - Flanged

Essentra's range of Flanged Index plungers have a flange with screw holes for extra fastening. They are ideal for use on thin materials.

Series Code :SR6571

Locking Bolts - Cylindrical Support

Locking Bolts - Cylindrical Support

Series Code :SR6566

Retaining Washers

A Plastic Retaining Washer is primarily used to hold screws and bolts in place during assembly and have a design that grips the outside of screw or bolt shank. Also known as an Anti Loss Washer, they provide insulation, cushioning and spacing. They help insulate fastening assemblies from moisture and electricity.

This washer range includes options with internal and external teeth with a tapered design. The washer easily slides on to the screw (or bolt) and is retained by the screw once assembled. The washer cold forms and fully enters the pitch of the screw to provide sealing.

These washers allow for preliminary mounting of the screw (or bolt) before securing with a nut. They are ideal when pre-assembly of the screw and washer is required. They also help reduce assembly time and cost.

The range includes material options that provide corrosion, abrasion and chemical resistance.

  • Materials: Polycarbonate (PC), Polyamide 6.6 (PA) and High Density Polyethylene (HDPE)
  • Colour: Natural

Spring Plungers - Pull Ring/Hand-Retractable

Spring Plunger with a Pull Ring that is also hand-retractable. The design features Nickel Plated housing and a Stainless Steel Pin.

The pull ring provides a convenient way to lift the plunger. These plungers are ideal for locating, positioning and securing. Common applications include gym equipment, such as weights apparatus.

Thread sizes include M6, M8, M10 and M12.

  • Housing Material: Nickel Plated Steel
  • Pin Material: Stainless Steel


Series Code :SR5407

Threaded Captive Washers

This range of Captive Washers has a very shallow thread on the inside diameter. This means they can be screwed on, and once past the threads they will not separate from the captive screw or bolt.

How to install a captive screw and washer assembly;
1) Place the captive screw into the panel hole.
2) Thread the washer on to the screw, beyond the threaded part of the screw, which retains the screw in the panel.

The washers are made from Stainless Steel that provides good resistance to corrosion and machinability. The material is a popular choice for construction and automotive applications.

  • Captive Washers has a very shallow thread on the inside diameter.
  • Once past the threads they will not separate from the captive screw or bolt.
  • Screw mounted.
Material: 303 Stainless Steel, 316 Stainless Steel Series Code: SRP0168