OO M20 Form 'B' Flat Washers Zinc Plated


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


Part No: M20-FW-ZFB

TIK Products

£0.12
Excl VAT: £0.10
31 Packs
In Stock

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


Part No: FM20-FW-ZFB5

TIK Products

£1.22
Excl VAT: £1.02
10120 Packs
In Stock

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


Part No: FM20-FW-ZFB

Fixings Megastore

£2.77
Excl VAT: £2.31
1012 Packs
In Stock

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


Part No: HX20-FW-ZFB

HX Fixings

£4.60
Excl VAT: £3.83
3 Days

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


Part No: FM20-FW-ZFBB

Fixings Megastore

£65.16
Excl VAT: £54.30
1 Packs
In Stock

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


Part No: HX20-FW-ZFBB

HX Fixings

£15.14
Excl VAT: £12.62
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 TypeFlat Form B
Internal Diameter21mm
External Diameter37mm
Thickness2mm
FinishZinc Plated
Washer SpecificationBS4320B