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 stock caused by standard screws, and goodbye to worn our screw holes on panels or hatches that are regularly removed for access. Our washers prevent this issue, and leave a meticulous "finished" look on any project. It's little details like these washers that set a good job apart from a great job. Not only do these washers prevent splitting, but they also create a smooth, finished look that will leave your project looking pristine. The combination of washer and screw applies force like a pan or round head screw, but is counterbored to a flush position. The screw head and exposed washer rim will be at the same level, resulting in a seamless finish. These washers are a game-changer for renovations, external trim repairs, pulling in heavy boat planks, and fine furniture. They allow you to pull warped trim or planking into place with long screws without worrying about the countersunk head of your screw splitting the timber. When used on access hatches or a cabin sole, the hatch can be unscrewed and then re-fastened without wearing out the surrounding timber. We recommend using a forstner bit or brad-point drill for the counterbore hole to ensure a clean finish with no tear-out, and the recommended bit sizes are below. Specially manufactured for us here at Fair Wind Fasteners, these silicon bronze flush mount countersunk washers are perfect for adding that finishing touch to your project. Also Available in 316 Stainless Steel! Works with any standard Flat or Oval head wood screw with 82° countersink heads. Bronze Countersunk Washer Dimensions SIZE FITS SCREW SIZE DRILL SIZE OUTER DIAMETER INNER DIAMETER DEPTH #6 #6 5/16" 0.306" (~5/16") 0.154" (5/32") 0.122" (1/8") #8 #8 3/8" 0.367" (~3/8") 0.187" (3/16") 0.156" (5/32") #10 #10 7/16" 0.432" (~7/16") 0.216" (7/32") 0.156" (5/32") #12 #12 15/32" 0.473" (~15/32") 0.244" (31/128") 0.168" (11/64") #14 #14 or 1/4" 17/32" 0.543" (~17/32") 0.269" (17/64") 0.200" (13/64")
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