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$15.99
sourcing map 50 Pcs Flat Washers, M5 x 10 x 1mm Copper Sealing Washers, Metric Sealing Ring Gasket (T3 Copper, Annealing Process)
★★★★★
$15.99
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About this item
- Package Contents: 50 pieces of M5 flat washers. Inner Diameter: 5mm, Outer Diameter: 10mm, Thickness: 1mm.
- T3 Copper Annealing Process: Annealing is a heat treatment process applied to copper, particularly T3 copper, to soften and make it more workable. Copper construction ensures resistance to wear, rust, and corrosion, reducing the need for frequent maintenance and replacement.
- Function: Copper washers are designed to provide a wider bearing surface for bolts, screws and nuts, used to carry the load of threaded fasteners over a larger surface area. This helps prevent damage to the connecting material and reduces the risk of concentrated force.
- Easy to Use: Flat washers are commonly used under bolts or nuts to secure bolts with a smaller diameter than the washer hole to provide a smooth bearing surface and reduce the possibility of the fastener loosening due to contact with uneven surfaces.
- Wide Application: Suitable for various repairs and installations in most mechanical industries such as automobiles and ships, and are also suitable for parts replacement of various pumps, oil pan plugs, office equipment, automation equipment, and electronic equipment. Also suitable for most furniture, DIY handmade projects, etc.
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What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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