A 230-piece assorted case of zinc penny repair washers covering 8 sizes, from 3/16″ to 3/8″ inner diameter. BZP finish for corrosion resistance. Compartmented carry case included. Handy for maintenance trades, site work and the van.
Zinc penny repair washers might not be the most glamorous item on your order sheet, but they are the kind of thing you really notice when you run out. This mixed case pack gives you 230 pieces across 8 sizes, covering inner diameters from 3/16″ up to 3/8″, with a choice of outer diameters at each size. The bright zinc plate (BZP) finish keeps corrosion at bay, which matters when these are going into fences, outbuildings, sheeting, or anywhere else that sees weather.
The washers come in a Kit-Master case with individual compartments for each size. It sounds like a small thing, but when you are fishing around in the bottom of a toolbox on a cold morning, having everything sorted and labelled makes a real difference. The case is splash-proof, stacks neatly with similar cases, and is easy enough to sling in a van drawer or site bag without everything ending up in a pile.
Where Zinc Penny Repair Washers Get Used
The large outer diameter is the whole point of a repair washer. It spreads the clamping load over a wider area than a standard washer, which means you can pull a fastener down firmly without it disappearing through soft or damaged material. That makes these useful in situations where the substrate has a bit of movement in it, or where the fixing hole has seen better days.
Typical Applications on Site
Roofing and cladding fixings, securing sheet materials, repairing damaged fixing points in timber, attaching signs and panels, and general maintenance work where a wider bearing surface is needed. They are also popular with hobbyists and in light engineering, though on a building site they tend to earn their keep on repair and refurbishment jobs where the original fixing is no longer doing the job it was meant to.
Having a mixed pack like this in the van means you are covered for most common sizes without needing to know in advance which one you will need. The breakdown is: 3/16″x1″ (50), 3/16″x1.1/2″ (20), 1/4″x1″ (50), 1/4″x1.1/2″ (20), 5/16″x1″ (50), 5/16″x1.1/2″ (20), 3/8″x1.1/2″ (10), and 3/8″x2″ (10). Smaller sizes are weighted toward the higher quantities, which reflects how these tend to get used in practice.
Pro Tip: When using repair washers on soft or weathered timber, nip up by hand first to check the washer is sitting flat before applying full torque, as a canted washer under load can split already-compromised material.
Penny repair washers are used across a wide range of trades and tasks wherever a standard washer would not provide enough bearing area. Common situations include securing corrugated or profiled sheeting, patching fixing points on gates and fencing, attaching inspection covers, and any repair job where the original hole has enlarged or the surrounding material has softened. They are also a reliable standby for maintenance engineers, handymen, and property maintenance contractors who need to carry a range of sizes without pre-ordering for specific jobs.
Best For
Sheet material fixings
Fence and gate repairs
Roofing and cladding
Enlarged or damaged fixing holes
General site maintenance
Van stock and call-out repairs
Available Sizes
3/16" x 1" (50 pieces)
3/16" x 1.1/2" (20 pieces)
1/4" x 1" (50 pieces)
1/4" x 1.1/2" (20 pieces)
5/16" x 1" (50 pieces)
5/16" x 1.1/2" (20 pieces)
3/8" x 1.1/2" (10 pieces)
3/8" x 2" (10 pieces)
Key Features
Bright zinc plate (BZP) finish
Corrosion resistant
230 pieces across 8 sizes
Compartmented Kit-Master carry case
Splash-proof case
Stackable storage
Not suitable for: Not suitable for structural or high-load applications where engineered load-rated washers are required. These are imperial-sized washers and will not match metric fastener specifications directly.
Select the washer size that matches your bolt or screw shank diameter for the inner measurement, then choose the outer diameter based on how much bearing area you need. For soft or punky timber, go for the larger outer diameter where possible. Slide the washer onto the fastener before driving, make sure it sits flat against the surface, and tighten to a firm but controlled torque. Over-tightening on soft materials will pull the washer through and defeat the purpose entirely.
Identify the fastener shank size and select the matching inner diameter washer.
Choose the outer diameter based on the condition and softness of the material being fixed.
Thread the washer onto the bolt or screw before inserting.
Offer the fastener up to the fixing point and check the washer sits flat on the surface.
Tighten firmly by hand first to confirm alignment, then apply tool torque gradually.
Stop tightening when the washer is seated firmly without distorting or pulling into the material.
Are these washers suitable for outdoor use?
Yes. The bright zinc plate (BZP) finish provides a reasonable level of corrosion resistance for general outdoor use, including fencing, gates, and external sheeting. For prolonged exposure in coastal or very damp environments, a stainless or hot-dip galvanised washer would give longer-term performance.
Are the sizes in this pack imperial or metric?
The sizes are imperial, with inner diameters listed in fractions of an inch (3/16", 1/4", 5/16", 3/8"). They are commonly used with imperial bolts and screws. If you are working with metric fasteners, check the equivalent diameter before ordering to make sure you get a proper fit.
These penny repair washers are manufactured in steel with a bright zinc plate (BZP) electroplated finish, providing corrosion protection suitable for general internal and external use. The large outer-to-inner diameter ratio is the defining characteristic of a repair washer, distributing clamping loads over a wider footprint than a standard flat washer. Sizes follow imperial fractional measurements and cover the most commonly encountered fastener shank diameters in maintenance and repair work.
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