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SF-2890
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Plastic 50mm Serrated Washer Pack of 20

£6.40

No VAT added. Delivery for this item: £15.54. Standard delivery is free on orders of £240 or more. Delivery and returns

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Listed as in stock on 13 November 2026. Availability confirmed before payment.

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Quantity: Pack of 20.50mm diameter x 4mm thick plastic serrated furniture-leg washer for fitting between suitable wooden furniture legs and the underside of sofas, chairs, footstools and other upholstered furniture. The serrated surface increases grip, helping reduce movement and resist threaded legs working loose, while also protecting the underside covering from rubbing and marking. Use it for furniture manufacture, upholstery, repair and replacement work using removable threaded wooden legs and feet. Use with suitable Wooden Furniture Feet and compatible M8 fixing systems. For wooden legs requiring a M8 threaded stud, see the M8 Wood to Metal Dowel Screw. Compatible frame fixings include M8 T Nuts, M8 D Nuts and the M8 3 Point Fixing Nut. Available in: packs of 20 and 100

Full description and care

Plastic 50mm Serrated Washer for Wooden Furniture Legs

The Plastic 50mm Serrated Washer is designed to sit between a suitable wooden furniture leg and the underside of the furniture, helping provide a more secure connection while protecting the upholstery covering around the leg fixing.

Measuring approximately 50mm in diameter x 4mm thick, the washer has a serrated surface that increases friction between the adjoining components. This helps reduce movement and can help prevent threaded wooden furniture legs gradually working loose during normal use.

The washer also creates a protective layer between the top of the wooden leg and the underside of the furniture, helping prevent direct rubbing, marking and damage to upholstery fabric or base covering.

50mm Furniture Leg Washer

The broad 50mm diameter provides a useful contact area between the furniture leg and furniture base.

When used with a compatible furniture-leg assembly, the washer can help:

  • Reduce unwanted leg movement
  • Resist threaded legs working loose
  • Increase friction between the adjoining surfaces
  • Spread contact across a wider area
  • Protect upholstery fabric beneath the furniture
  • Prevent the top of the leg rubbing directly against the covering
  • Provide separation between the wooden leg and furniture base
  • Produce a neater finished furniture-leg installation

The washer is particularly useful with removable wooden sofa, chair and footstool legs where the leg tightens against the underside of the furniture.

Serrated Surface Helps Resist Movement

The serrations on the washer are an important part of its design.

Rather than presenting two completely smooth surfaces against one another, the serrated profile increases friction within the furniture-leg assembly.

When the furniture leg is tightened correctly, this additional grip can help reduce the tendency for the leg to rotate and gradually loosen through movement and everyday furniture use.

The washer should complement a sound threaded fixing rather than being used to compensate for:

  • Damaged threads
  • A loose T nut or D nut
  • Split furniture-frame timber
  • A damaged mounting plate
  • Insufficient thread engagement
  • An incorrectly sized threaded fitting

If the furniture leg continues to loosen, check the complete fixing system rather than simply tightening the leg harder.

Protect Upholstery Fabric Beneath the Furniture

Wooden furniture legs can have a relatively hard upper shoulder or fixing surface.

Without a suitable separator, this surface may press or rub directly against the fabric or base covering fitted beneath the furniture.

Over time this can cause:

  • Abrasion
  • Fraying
  • Localised tearing
  • Marking
  • Crushing of the covering
  • Damage around the threaded fixing

The 50mm plastic washer provides a protective interface between the wooden leg and furniture base, reducing direct contact between the two surfaces.

This is particularly useful on upholstered sofas, chairs and footstools where the underside fabric extends across or close to the furniture-leg mounting position.

Use it for Wooden Furniture Feet and Legs

The washer is designed primarily for use with suitable wooden furniture legs and feet.

Typical applications include:

  • Sofa feet
  • Armchair legs
  • Upholstered chair feet
  • Footstools
  • Ottomans
  • Upholstered benches
  • Bed and divan legs
  • Replacement furniture feet
  • Furniture manufacture
  • Furniture restoration
  • Upholstery repairs

Browse Status Fabrics' Wooden Furniture Feet for traditional, turned, square, tapered and timber furniture-leg options.

Not every furniture leg will require or suit a 50mm washer, so check the leg shoulder, fixing arrangement and available space before ordering.

Use with M8 Threaded Wooden Furniture Legs

Many wooden furniture legs use a M8 threaded fixing.

Where a wooden leg does not already contain a threaded stud, the M8 Wood to Metal Dowel Screw can be used to create one in a suitable timber leg.

The wood-threaded section is fitted into the wooden furniture leg, leaving the M8 machine-thread section exposed.

The serrated washer can then sit around the threaded stud between the top of the furniture leg and the underside of the furniture.

The exposed M8 thread engages with the compatible fixing mounted in the furniture frame.

This can create a complete furniture-leg assembly consisting of:

  • Wooden furniture leg
  • M8 wood-to-metal dowel screw
  • 50mm serrated washer
  • Compatible M8 furniture-frame fixing

Use with M8 T Nuts

a M8 T Nut provides a traditional four-prong threaded fixing within suitable timber furniture frames.

The M8 stud on the furniture leg passes through the serrated washer and screws into the internal M8 thread of the T nut.

As the leg is tightened, the washer becomes trapped between the top of the leg and the underside of the furniture.

This allows the washer to provide its friction and protective functions while the T nut provides the actual threaded anchor.

Use with M8 D Nuts

a M8 D Nut provides another method of creating a M8 threaded anchor within suitable timber.

Unlike a T nut, the D nut has a coarse external thread and screws directly into a correctly prepared pilot hole.

Where the furniture construction is suitable, a wooden leg with a M8 threaded stud can be fitted through the serrated washer and screwed into the installed D nut.

The washer should not interfere with the threaded stud reaching sufficient depth within the D nut.

Use with a M8 3 Point Fixing Nut

The M8 3 Point Fixing Nut provides a M8 threaded connection mounted on a broader plate secured through three fixing positions.

This can provide another suitable receiving fixing for compatible threaded wooden furniture legs.

The serrated washer can be positioned between the wooden leg and furniture base where the construction and available thread length allow.

Check the Available Thread Length

The washer is approximately 4mm thick.

Because it sits between the furniture leg and the furniture base, it occupies approximately 4mm of the available threaded-stud projection.

It is therefore important to make sure that sufficient thread remains available to engage securely with the T nut, D nut, fixing plate or other receiving fitting.

Before final assembly, check:

  • Total exposed thread length
  • Washer thickness
  • Depth of the receiving thread
  • Furniture-base thickness
  • Position of the leg shoulder
  • Required tightening position
  • Condition of both male and female threads

A furniture leg should not be left with only minimal thread engagement simply to accommodate the washer.

If insufficient thread remains, the complete fixing arrangement should be reviewed.

Correct Washer Position

The washer should sit flat and centrally around the furniture-leg fixing.

Avoid trapping the washer at an angle or allowing only part of its surface to contact the top of the wooden leg.

A correctly fitted washer should provide even contact between the furniture leg and the furniture base.

Before tightening the leg fully, check that:

  • The washer sits flat
  • The threaded stud passes centrally through the washer
  • No fabric is badly folded beneath it
  • The leg shoulder contacts the washer evenly
  • The thread engages smoothly
  • The leg reaches its correct final position

Do not overtighten the furniture leg in an attempt to flatten an incorrectly positioned washer.

Useful for Furniture Repair and Replacement Legs

Serrated washers can also be useful when replacing wooden furniture legs.

Where the original furniture used a similar washer, replacing a missing or damaged component can help restore the intended fixing arrangement.

When inspecting existing furniture, check whether the washer has:

  • Split
  • Cracked
  • Become distorted
  • Been lost during previous repairs
  • Become embedded in damaged fabric
  • Worn around the central fixing

Also inspect the threaded leg and furniture-frame fixing at the same time.

Replacing the washer alone will not repair a stripped thread or loose insert.

Compatible Wooden Furniture Legs

A number of Status Fabrics wooden furniture legs use M8 threaded fixings and can form part of a compatible furniture-leg system.

For example, the Round Tapered Wooden Leg 40mm Diameter x 150mm uses a M8 threaded fitting and can be used with a suitable washer arrangement where the furniture construction allows.

The Square Wooden Foot 70mm x 70mm x 200mm also uses a M8 threaded fixing.

Always check:

  • Leg dimensions
  • Thread size
  • Thread length
  • Washer diameter
  • Leg shoulder size
  • Furniture-frame construction
  • Required finished furniture height

The washer should be selected as part of the complete furniture-leg fixing system rather than solely by thread size.

Additional product information

50mm diameter x 4mm thick plastic serrated furniture-leg washer for fitting between suitable wooden furniture legs and the underside of sofas, chairs, footstools and other upholstered furniture.

The serrated surface increases grip, helping reduce movement and resist threaded legs working loose, while also protecting the underside covering from rubbing and marking.

Use it for furniture manufacture, upholstery, repair and replacement work using removable threaded wooden legs and feet.

Use with suitable Wooden Furniture Feet and compatible M8 fixing systems. For wooden legs requiring a M8 threaded stud, see the M8 Wood to Metal Dowel Screw.

Compatible frame fixings include M8 T Nuts, M8 D Nuts and the M8 3 Point Fixing Nut.

see the T Nuts, D Nuts & Fixings range or the wider Feet, Castors & Glides collection.

Available in packs of 20 and 100.

Range options and attributes
Quantity
Pack of 100, Pack of 20

Specifications are reproduced from supplied product data and have not been checked against a physical sample. Colours vary between screens and devices, so on-screen images may not exactly match the physical material.

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