BCP Fasteners #10 x 1/2″ Stainless Steel EPDM Sealing Washers – 500 Pack – Rubber Bonded Washers for Metal Roofing, Sheet Metal, Siding, Roof Screws – Leak-Proof, Corrosion Resistant (BCP861)
$22.99
Price: $22.99
(as of Oct 13, 2025 08:19:43 UTC – Details)
Product description
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Customer Reviews
4.7 out of 5 stars 563
4.7 out of 5 stars 563
4.7 out of 5 stars 563
4.7 out of 5 stars 563
4.7 out of 5 stars 563
Price
$8.55$8.55 $27.15$27.15
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$9.25$9.25 $22.99$22.99
Inside Diameter
1/4″ 1/4″ 1/4″ 7/32″ 7/32″
Outside Diameter
5/8″ 5/8″ 5/8″ 1/2″ 1/2″
Thickness
.145″ .145″ .145″ .14″ .14″
Quantity
100 500 1,000 100 500
Date First Available : December 6, 2018
Manufacturer : BCP Fasteners
ASIN : B07L5R8VT9
Best Sellers Rank: #11,576 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #2 in Sealing Washers
Customer Reviews: 4.7 4.7 out of 5 stars 563 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Package of 500 pieces
EPDM rubber (Neoprene) is an extremely durable synthetic rubber membrane
Inside Diameter 7/32″ | Outside Diameter 1/2″ | Thickness .14″
Passivated finish with an A70 durometer hardness
304 stainless steel for long life corrosion resistance
Customers say
Customers find these washers to be of good quality, with one noting their suitability for outdoor exposure, and appreciate their functionality, sealability, and value for money. They fit perfectly and are expected to last for years, with one customer mentioning their effectiveness in protecting against corrosion between aluminum and steel. While customers like the size, some find them “teeny-tiny.”
9 reviews for BCP Fasteners #10 x 1/2″ Stainless Steel EPDM Sealing Washers – 500 Pack – Rubber Bonded Washers for Metal Roofing, Sheet Metal, Siding, Roof Screws – Leak-Proof, Corrosion Resistant (BCP861)
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$22.99
DONALD BOND –
Great value.
Great price. Great quality.
brian parks –
Great for metal sheds
I use these when building my metal sheds. The plastic ones provided with the shed rot and crack within a few years and start to leak. These function great and last for years. They fit perfect and are very cheap. They may not look as great as the plastic ones provided but it’s their function that matters to me.
Frank B. –
Washer
Good product !
Evergreen Services –
very pleased and does the job.
Arrived quickly and is exactly what I needed.Â
Stephen D. Wall –
Tiny and expensive.
Itty-bitty, teeny-tiny, At number eight, about one-eighth the size you might have expected. Still, good wuality, if a bit pricey.
Dr. Darin –
Saved My Project
Saved my bacon on my outdoor kitchen gazebo roof install.
Lee Golebieski –
Product performed as advertised
Product performed as advertised.
RTG –
Works as expected
I am using these on my aluminum fishing boat to prevent water leaks where I have 1/4-20 bolts through the hull. They give a tight seal around the bolt and the surface. I had to grind a flat spot on the washers for some applications and they held up well under the stress of my grinding wheel. Excellent product.
Risoterm Isolantes Termicos LTDA –
Prezados,Compramos recentemente o lote de arruelas de neoprene com componente especificado como aço inoxidável.No entanto, após a instalação e em curto perÃodo de uso, identificamos que o material está oxidando (enferrujando), o que não condiz com as propriedades esperadas do aço inox.