Flush-fitting fasteners start with the right hole. Add countersinks to either side of your sheet metal parts during production.
MADE IN TEXAS.
SHIPPED NATIONWIDE.
Choose the angle that matches your fastener specification
The most common countersink angle. Standard for flat-head machine screws (ANSI/ASME B18.6.3). Use this when working with standard flat-head fasteners.
Available on top or bottom side of the materialUsed for metric flat-head screws (DIN 965 / ISO 10642) and some specialized aerospace fasteners. Choose this when your hardware specifies a 90° seat.
Available on top or bottom side of the materialEverything you need to know about our countersinking service.
Base price applies per order. Specify outer diameter in mm or inches when configuring.
Cross-section view of a countersunk hole showing key dimensions
Countersinks give you flush, professional fastener installations.
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