Precision Punch Retaining Catch

The Precision Punch Retaining Catch is a heavy locating stamping that positions a component during assembly and then holds it captive. It is blanked from SPCC or SGCC, with 304 stainless steel and thickened carbon steel as upgrade materials. Thickness is 1.2 / 1.5 / 2.0 mm across a 1.0–3.5 mm range. Positioning accuracy is the defining property: slot symmetry is held within 0.08 mm and the working fit gap is 0.05–0.1 mm, tunable to the mating tolerance. Static pull-out resistance is at least 80 kg, upgradable for heavier equipment. Yellow zinc passivation is standard, with a 60 μm outdoor powder-coat option, and the catch shape, limit step and mounting-ear structure are all developed from the customer drawing.

For a locating catch, a few hundredths of a millimetre error throws the whole assembly off, so the buyer is paying for repeatable position, not just raw strength. Die control that holds slot symmetry to ≤0.08 mm and the fit gap to 0.05–0.1 mm makes the catch seat in the same place on every component, which is what lets it run on automated or repeat assembly without adjustment. Because the gap is precision-adjustable and the pull-out rating can be reinforced, one catch design can be matched to tighter tooling or a heavier load class rather than redesigned from scratch.