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$14.99
sourcing map 12pcs 5/16" Black Flat Washer for M8 Screw, Steel Metal Washers 8mm ID 18mm OD 5mm Length for Industrial, Screws Bolts
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$14.99
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About this item
- Black metal washer is a commonly used sealing material that can be used as a cylinder washer for automotive engines. Flat washers, used for connecting various industrial equipment such as valves, pipe lines, etc. The use of black metal washers at the connection points of heavy machinery components, such as bearings and transmission devices, helps to improve sealing and durability.
- 5/16 inch black steel washer fit for M8 screws or bolt, with size: 8 x 18 x 5 mm / 0.31 x 0.71 x 0.2 inch (ID x OD x H); Material: Carbon Steel; Color: Black; Style: Unthreaded; Applicable Screw Size: M8
- Outstanding Durability: Made from carbon steel, the screw washer provides high strength and resistance to wear, making it suitable for high-pressure applications. Corrosion Resistance: Flat washer, the black finish not only gives it an aesthetic appeal but also provides added protection against rust and corrosion, enhancing its longevity. Easy to Install: With the non-threaded design, this metal washer is great to fit M8 screws and bolts, making the installation quick and simple.
- 1. Slide the washer over the bolt or screw. 2. Use the appropriate tool to tighten the bolt or screw. 3. Ensure the washer fits snugly on the bolt/screw to ensure a secure connection. 4. Black steel washers can be used to enhance the sealing effect at the interfaces of household appliances such as gas stoves and water heaters.
- Please make sure the washer is used with appropriate bolts to ensure proper fit and functionality.
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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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