Snap tri-clamp, bolt-free (printable, ½ to 4 in) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/snap-tri-clamp-bolt-free/  (CC BY 4.0)
Basis: Xem Studio design (v7), tested on a 2 in printed joint
Catalog version: 2026-10-20

Sizes: see table below
- A two-piece tri-clamp clamp with no bolt: each half carries a flush arm whose hooked claw drops into a notch on the other half only when the halves meet — clipped or not, nothing in between. Open with a butter knife in the V at the arm tip.
- Prints flat with no supports: every downward face is 45° or steeper, both outer edges carry the same R7 round.
- Sized for the printable 45° tri-clamp ferrules and a standard silicone gasket (closes on a 2.0 mm compressed stack). One clamp per flange: ½ and ¾ in share the 25 mm flange, 1 and 1½ in the 50.5 mm flange.
- The STEP/STL pack (all six sizes) is $0.25; AI agents pay with x402 (USDC) at /api/buy/snap-tri-clamp-pack. The dimension sheet here is free.

size  clamp OD  width  print footprint (one half)
½–¾ in (25 mm flange)  43.0 mm  16.0 mm  42.3 × 26.4 mm
1–1½ in (50.5 mm flange)  68.5 mm  22.5 mm  67.5 × 42.3 mm
2 in (64 mm flange)  82.0 mm  23.3 mm  80.8 × 50.7 mm
2½ in (77.5 mm flange)  95.5 mm  24.1 mm  94.1 × 59.1 mm
3 in (91 mm flange)  109.0 mm  24.9 mm  107.4 × 67.5 mm
4 in (119 mm flange)  137.0 mm  27.5 mm  135.0 × 84.9 mm

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Xem Studio: Snap tri-clamp design — web — Publisher's page; dimensions are facts — https://xemstudio.com/

Xem Studio scan: not needed; this is a published standard. The sheet is the geometry.
API: https://xemstudio.com/api/geometry?object=snap-tri-clamp-bolt-free