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M12 Form G Flat Washer BS 4320G Galvanised Steel

Product code: WG4320-M12-HDG
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M12 Form G Flat Washer BS 4320G Galvanised Steel | Vital Parts
M12 Form G Flat Washer BS 4320G Galvanised Steel | Vital Parts
M12 Form G Flat Washer BS 4320G Galvanised Steel | Vital Parts
M12 Form G Flat Washer BS 4320G Galvanised Steel | Vital Parts
M12 Form G Flat Washer BS 4320G Galvanised Steel | Vital Parts
M12 Form G Flat Washer BS 4320G Galvanised Steel | Vital Parts
Quantity
Unit Price
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2 - 99 £0.14 £0.17
100 - 249 £0.12 £0.15
250 - 499 £0.10 £0.12
500 + £0.07 £0.09
£0.17 / each
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Product Specifications WG4320-M12-HDG
Size M12
Internal Diameter 14.0mm
Outside Diameter 36.0mm
Thickness 3.0mm
Standard BS 4320 G
Material Galvanised Steel
Shield Check

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Order by 4pm (UK) for same day dispatch (Monday – Thursday, 2pm Friday). Next Day or Standard Delivery available via DHL or Royal Mail.

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Product Description

 

M12, Form G Flat Washer, 36.0mm OD, 14.0mm ID, 3.0mm Thick, BS4320G, Galvanised Steel | Vital Parts – WG4320-M12-HDG

Improve joint reliability using our Form G Flat Washer, engineered to spread load, protect surfaces and support secure clamping in bolted assemblies. Manufactured to BS4320G from Galvanised Steel, this washer is sized for M12 fasteners with an 14.0mm internal diameter and an 36.0mm outside diameter. With a 3.0mm thickness, it is ideal for general engineering, maintenance and construction applications across the UK where consistent bearing support is required.

What Are Form G Flat Washers?

Form G flat washers are general-purpose load-spreading washers specified to BS 4320 Form G. Fitted under bolt heads or nuts, they help distribute tightening forces over a wider area to reduce surface damage, minimise embedment and improve clamp stability. The galvanised finish supports use in exposed and outdoor assemblies where additional corrosion resistance is beneficial.

Applications and Key Industries

These Form G washers are commonly used across the UK where secure bolted joints are required and surface protection matters. Typical applications include site maintenance, structural steelwork, agricultural equipment, general fabrication and plant engineering.

Key Features

  • BS 4320 Form G standard: Consistent washer dimensions for dependable assembly fit.
  • Load distribution: Helps reduce surface marking and improves clamping performance.
  • Galvanised steel protection: Practical corrosion resistance for external and site use.
  • Stable bearing surface: Supports nuts and bolt heads on softer or coated materials.

Product Specifications

  • Size: M12
  • Internal Diameter: 14.0mm
  • Outside Diameter: 36.0mm
  • Thickness: 3.0mm
  • Material: Galvanised Steel
  • Standard: BS 4320 G

Benefits

  • Supports consistent clamp load: Helps maintain joint integrity when correctly installed.
  • Protects mating surfaces: Helps prevent damage to painted, plated or softer materials.
  • Improves assembly quality: Helps compensate for uneven contact areas.
  • Practical UK trade choice: Suitable for maintenance, repair and production environments.

Why Buy from Vital Parts?

Vital Parts supplies quality components for trade and industry with dependable stock and customer support.

  • UK based customer support team
  • Same-day dispatch on stocked lines
  • Free product samples on request
  • Trade pricing available with a Business Account

Call Vital Parts Today

For expert advice, free product samples and same-day dispatch, call our England based customer support team on 01233 713 581. Register for your Vital Parts Business Account to unlock credit payment terms, preferential delivery options, exclusive trade pricing and a dedicated account manager.

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