The first question is what you need the washer to do. Flat washers are the everyday choice for load spread, penny washers suit softer material or a slotted hole, and spring washers are used where you want some resistance against loosening. Material matters too. Stainless steel washers are the usual pick outdoors or where corrosion will show, while rubber washers are for sealing rather than load spread.
Metpro Shakeproof Washer - M20 Steel BZP
M20 steel shakeproof washer with BZP finish
Forgefix Flat Washer Form B - M20 Zinc Plated Bag of 10
M20 zinc plated Form B flat washers, pack of 10
Forgefix Forgepack Flat Washer - M6 x 40mm zinc plated S 6 pack
M6 x 40mm zinc plated flat washers in a 6-pack
ForgeFix Flat Washer Form B - M16 Zinc Plated Bag of 10
M16 zinc plated flat washer, Form B to DIN 125, pack of 10
Timco Form A Washer - M20 BZP
Form A washer, M20, bright zinc plated, box of 100
RW3 MCA Rubber Inlet Washers - 2.0"
2-inch black rubber inlet washer for plumbing applications
Fibre Washer 82075656 - 1/2"
Red fibre washer, 1/2 inch (12.7mm)
Fast-PAK Cup Washers - No. 10 Chrome
No. 10 chrome cup washer for fixing applications
Repair/Mudguard/Penny Washer BZP - M8 x 50 100 Pack
M8 x 50mm bright zinc plated penny washer, pack of 100
Mudguard Washer BZP - M12X40MM
M12 mudguard washer BZP, 30mm OD, 40mm size, 1.5mm thick
Start with the fixing and the space you’ve got. Then decide whether you need simple spacing, a wider bearing face, or something that keeps the joint settled. The call usually comes down to head size, hole size, and whether the fixing is going into timber, sheet, or a softer face that can crush. Stainless steel washers are the usual pick where corrosion is a concern. Zinc plated or galvanised options suit less exposed work. If the joint keeps moving, you need a different answer than if you just want a clean, even seat.
Flat washers are the everyday pick when you just need load spread and a clean bearing face. Penny washers and fender washers come in when the hole’s too generous or the material is softer and you want more coverage.
Spring washers still get used where you want a bit of resistance against working loose, but they’re not the answer to every vibration problem. For more exposed jobs, stainless steel washers usually get the nod. Zinc plated and galvanised washers are more common on lighter-duty work where you’re balancing cost against exposure.
If you’re matching the rest of the fixings, keep the Nuts, Bolts & Washers range in view.
Material is usually the first call. Stainless steel washers suit jobs that need a firmer face and better day-to-day durability, but you do carry a bit more weight in the bag than with lighter options.
Mild steel washers are the cheaper, everyday pick where the fixing isn’t taking much abuse. They’re fine for lighter duty work, but they’re not the first choice if the job is going to see harder use.
Rubber washers are the one to use when you need a bit of give or sealing rather than just a hard bearing face. They change how the fixing behaves, not just how it looks.
Size still matters as much as the material, so check the bolt and the hole before you order. If you’re buying with the rest of the fixings, Bolts and Multipacks are usually the next two decisions.
Once you’ve picked the washers, the next call is what else is going into the fixing run and what finish the job needs around it. If you’re building out the assembly, bolts are the obvious follow-on. Check the head style and length before you order the rest. A washer won’t make up for the wrong bolt spec.
For bigger quantities, multipacks usually make more sense than piecing it together. They keep the same size across the job and cut down on mixed boxes and a return trip.





















