Finish fixings neatly and protect fittings with our range of Washers, Covers & Caps. These small but essential components help improve strength, reduce wear, and give a cleaner overall finish across building, installation and maintenance work. Whether you’re tightening bolts and screws, spacing fixings correctly, or covering exposed heads for a tidier appearance, choosing the right washer or cap helps achieve a more secure and professional result.
Washers are commonly used to spread load, prevent damage to surfaces, and reduce the risk of fixings loosening over time. Covers and caps are ideal for protecting fixings from dirt, moisture and corrosion while also improving appearance—especially in visible areas or external environments. They’re widely used across timber, metalwork, fencing and general construction projects where durability and neat presentation matter.
For best results, match washer sizes to the correct bolt or screw diameter and select covers or caps suited to the location and finish you want. Whether you’re replacing worn components or completing a new installation, having the right accessories makes the job quicker and more reliable.
Shop online today for washers, covers and caps with delivery and collection available.
The 50 x 50 x 10mm Square Plate Washers - Zinc Plated - Bag 10 is a washer designed to spread load, improve clamping performance and help protect the fixing surface.
The 50 x 50 x 12mm Square Plate Washers - Zinc Plated - Bag 10 is a washer designed to spread load, improve clamping performance and help protect the fixing surface.
The M10 Flat Washers - Light Duty - Zinc Plated - Bag 100 is a washer designed to spread load, improve clamping performance and help protect the fixing surface.
The M10 x 25mm Penny Washers - Zinc Plated - Bag 10 is a washer designed to spread load, improve clamping performance and help protect the fixing surface.
The M10 x 40mm Repair Washers - Zinc Plated - Bag 10 is a washer designed to spread load, improve clamping performance and help protect the fixing surface.
The M12 Flat Washers - Light Duty - Zinc Plated - Bag 100 is a washer designed to spread load, improve clamping performance and help protect the fixing surface.
The M12 x 25mm Penny Washers - Zinc Plated - Bag 10 is a washer designed to spread load, improve clamping performance and help protect the fixing surface.
The M12 x 40mm Repair Washers - Zinc Plated - Bag 10 is a washer designed to spread load, improve clamping performance and help protect the fixing surface.
The M6 Flat Washers - Light Duty - Zinc Plated - Bag 100 is a washer designed to spread load, improve clamping performance and help protect the fixing surface.
The M6 x 25mm Penny Washers - Zinc Plated - Bag 10 is a washer designed to spread load, improve clamping performance and help protect the fixing surface.
The M8 Flat Washers - Light Duty - Zinc Plated - Bag 100 is a washer designed to spread load, improve clamping performance and help protect the fixing surface.
The M8 x 25mm Penny Washers - Zinc Plated - Bag 10 is a washer designed to spread load, improve clamping performance and help protect the fixing surface.
Builders merchant depots across Leicestershire and Rutland
Three William Hercock depots in Melton Mowbray, Leicester and Oakham supply trade professionals and DIY customers with building materials, timber and landscaping supplies.
Collect from your nearest yard or have it delivered straight to site with HIAB and Moffett offload.
Trade and publicEvery depot is open to trade professionals and DIY customers
Collect or deliveredCollection from any branch or local delivery
HIAB and MoffettCrane and forklift offload straight to site
Rated up to 4.8★ on GoogleFrom 160+ customer reviews across our three depots
Opening hours
The same at all three depots
Monday – Friday7:30am – 5:00pm
Saturday8:00am – 12:00pm
SundayClosed
Bank holiday hours may differ. Please call your branch to check.
What every depot offers
Whichever branch is closest, you get the same service.
Bulk bags and pallet quantitiesOrder by the bag, the bulk bag or the full pallet.
Fast local delivery with HIAB and MoffettCrane and truck-mounted forklift offload, straight to site.
Trade accounts with credit facilitiesCredit terms and trade pricing. Open a trade account
Expert advice from an experienced teamHelp choosing materials and working out quantities.
Reliable stock availabilityKey product ranges kept in stock at every branch.
Open to trade and publicBuilders, contractors and DIY customers all welcome.
Need help with your project?
Our depot teams can help you choose materials and work out quantities.