Flat Washer, For Screw Size 5/16", Steel Black Oxide Finish, 25 PK MPN:42620
Flat Washer, For Screw Size 5/16", Steel Black Oxide Finish, 25 PK
For heavy-duty applications requiring extra support, our 5/16in flat washers are the ideal solution. Made from C1010 steel with a black oxide finish, these oversized washers provide maximum strength and durability. With an inside diameter of 0.344in and an outside diameter of 3/4in, they fit securely around 5/16in screws, while the extra thickness of 0.188in ensures a secure hold. Suitable for use in machinery, equipment, and industrial settings, these washers withstand temperatures up to 400°F. Their compact packaging makes them easy to store and transport, making them a reliable choice for a variety of heavy-duty applications.
Top product features:
- Extra Thick design provides increased stability and support for screws
- Black Oxide Finish provides corrosion resistance and durability
- Oversized Inside Diameter accommodates larger screw heads for easier installation
Top product applications:
- General purpose fastening in construction and building applications
- Automotive repair and maintenance
- Heavy machinery assembly and repair
Extra Thick Oversized Washer, Flat Washer Type Standard, Dimensional Standards TCMAI, Material Steel, Material Grade/Class C1010, Finish Black Oxide, For Screw Size 5/16 in, Inside Diameter 0.344 in, Outside Diameter 3/4 in, Maximum Thickness 0.188 in, System of Measurement Inch, Minimum Thickness 0.172 in, Color Black, Made in North America Made in North America, Material Quality Standards Not Applicable, Maximum Temperature 400 Degrees F, Pack Size Small Pack, Thickness Tolerance +/-1/64 in
Additional Information
- Country of Origin: US
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: PK
- Package Length: 6.00
- Package Width: 1.40
- Package Height: 1.00
- Package Weight: 0.45
Product info last updated on March 23, 2026 5:16am UTC
Category: Washers