M20 Form 'B' Flat Washers Zinc Plated


M20  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.
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M20 Form 'B' Flat Washers Zinc Plated (Pack of 1)


Product Code: M20-FW-ZFB

TIK Products

£0.06
Ex Tax: £0.05
31 Packs
In Stock

M20 Form 'B' Flat Washers Zinc Plated (Pack of 5)


Product Code: FM20-FW-ZFB5

TIK Products

£0.91
Ex Tax: £0.76
11590 Packs
In Stock

M20 Form 'B' Flat Washers Zinc Plated (Pack of 50)


Product Code: FM20-FW-ZFB

Fixings Megastore

£3.07
Ex Tax: £2.56
1715 Packs
In Stock

M20 Form 'B' Flat Washers Zinc Plated (Pack of 100) [BS 4320B]


Product Code: HX20-FW-ZFB

HX Fixings

£4.97
Ex Tax: £4.14
3 Days

M20 Form 'B' Flat Washers Zinc Plated (Pack of 1,800)


Product Code: FM20-FW-ZFBB

Fixings Megastore

£72.80
Ex Tax: £60.67
Out Of Stock

M20 Form 'B' Flat Washers Zinc Plated (Pack of 1,500) [BS 4320B]


Product Code: HX20-FW-ZFBB

HX Fixings

£44.94
Ex Tax: £37.45
3 Days
  • 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 21mm
External Diameter 37mm
Thickness 2mm
Finish Zinc Plated
Washer Specification BS4320B