Machined 651 silicon bronze construction: Delivers superior durability and corrosion resistance for marine and woodworking applications
Flush countersunk design: Ensures screw heads and washer rims are at the same level for a seamless, professional finish
Prevents wood splitting: Allows long screws to be used without damaging timber, ideal for access hatches and panels
Compatible with standard wood screws: Works with any flat or oval head wood screw for versatile project use
Easy installation: Countersunk hole fits standard drill bit for clean, tear-out-free results
Summarized by Shop
Introducing our one-of-a-kind machined washers that we had made specially for us here at Fair Wind Fasteners. Made of 651 Silicon Bronze, the same alloy as our cut thread bronze wood screws, these bronze CSK washers are the perfect finishing touch for your woodworking and boatbuilding projects. Say goodbye to the frustration of split stoc
Material
651 silicon bronze
Washer Form
Flat
Pattern
Solid
Available Sizes
Multiple (see description for details)
Recommended Tools
Forstner bit or brad point drill
Summarized by Shop
5.0
32 ratings
5
4
3
2
1
Bronze Countersink cups
We have implemented these as a regular piece of hardware in our work. Big fan, we stock 8’s, 10’s, 12’s now as regular inventory.
B
BS · May 30, 2026
Nobody better !
Recently placed a couple of orders. The quality of the fasteners was more than impressive. The only thing better was the customer service and attention to detail in ensuring everything was right. Can't give enough praise.
F
F · April 11, 2026
Finally, The Fasteners I Was Searching For
We are reupholstering a MCM chair and adjustable ottoman for son. There was one countersunk washer left from the 2 original. Nothing online matched the style of it until I found Fair Wind. The quality and finish are superb. Service too!