We have been advised that on Monday 23rd May, our power supply will be turned off for maintenance upgrades by UK Power Networks. This will last all day.

Whilst our staff will be processing orders, answering emails and taking calls while working from home, our trade counter in Maidstone ME17 4BA will be closed for the day.


M3 Form 'B' Flat Washers Zinc Plated


M3  Form  'B'  Flat  Washers  Zinc  Plated
  • Form B flat washers are thinner than the heavier duty form A type washers.
  • They are zinc plated for resistance to corrosion, and conform to BS4320 standards.
  • Washers provide a smooth surface for the nut or bolt to bear on, making it less likely to loosen as a result of an uneven fastening surface.
  • The main purpose of a washer is to distribute the load under a bolt head or the nut face.

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When out of stock, any availability times are estimates and dependent upon supplier stock. Items without a lead time have no confirmed status and may take up to 12 weeks to arrive.
Image Product + Brand Price Availability Qty

M3 Form 'B' Flat Washers Zinc Plated (Pack of 1)


Product Code: M03-FW-ZFB

TIK Products

£0.02
Ex VAT: £0.02
3020 Packs
In Stock

M3 Form 'B' Flat Washers Zinc Plated (Pack of 10)


Product Code: FM03-FW-ZFB10

TIK Products

£0.00
Ex VAT: £0.00
Out Of Stock

M3 Form 'B' Flat Washers Zinc Plated (Pack of 12,000)


Product Code: FM03-FW-ZFB

Fixings Megastore

£18.53
Ex VAT: £15.44
Out Of Stock
  • Form B flat washers are thinner than the heavier duty form A type washers.
  • They are zinc plated for resistance to corrosion, and conform to BS4320 standards.
  • Washers provide a smooth surface for the nut or bolt to bear on, making it less likely to loosen as a result of an uneven fastening surface.
  • The main purpose of a washer is to distribute the load under a bolt head or the nut face.

Zinc coatings prevent oxidation of the protected metal to create a longer lasting finish. It does this by forming a barrier and by acting as a sacrificial anode if this barrier is damaged. Zinc oxide is a fine white dust that (in contrast to iron oxide) does not trigger a breakdown of the substrates surface integrity as it is formed. The zinc oxide, if left intact, can act as a barrier to further oxidation, in a way similar to the protection afforded to aluminum and stainless steels by their oxide layers.

Fastener Specifications
Washer Type Flat Form B
Internal Diameter 3.3mm
External Diameter 7mm
Thickness 0.25mm
Finish Zinc Plated
Washer Specification BS4320B