Flush-fit fasteners without compromise. Conical seats machined into your sheet metal for flat-head screws, rivets, and recessed hardware — zero protrusion, maximum precision.
Our countersinks are machined with precisely controlled depth stops to ensure every flat-head fastener sits perfectly flush — no rock, no proud surface, no finishing required afterward.
Depth is held to ±0.003″, and seat concentricity is maintained so screws don't "lean" or require torque correction during assembly.
Two standard seat angles cover the full range of inch and metric flat-head fasteners. We machine both in the same order — specify per-hole if your design requires it. Preview the cone, through-hole, and remaining land in the countersink geometry calculator, or see every seat we tool and the thinnest gauge each one fits in the countersink size chart.
Countersinking is available across all our standard sheet metals. Thickness requirements vary — we check your geometry at quoting and flag anything that needs revision.
A few simple DXF rules make countersinks come out perfectly the first time, every time.
Every alloy, finish, and gauge we countersink in-house. Each thickness shows the largest flat head that still leaves land under the cone at that gauge, and the angle it runs on — click any chip for the full spec sheet.
Upload your DXF and call out your countersink holes. Instant quoting available — no setup fees, no minimums.
