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M4 Threaded Rod Micro Slide Carriage
A 44 x 30 x 14 mm slide carriage for small linear actuators. It is driven by M4 threaded rod through a drop-in M4 hex nut (7 mm across flats) and rides on two 4 mm guide rods set 30 mm apart. It's meant for camera sliders, gripper strokes and small robots driven by N20 or micro-stepper motors, where T8/NEMA 17 hardware is too big. Four M3 heat-set insert holes on an 18 x 10 mm pattern on top take the payload.
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