Screw Machined Compression Limiters by The Gent Machine Company are plain or non-threaded bushings designed to protect plastic parts from cracking by withstanding the pressure induced by the tightening of screws or bolts.  Designs may include knurl finishes and/or undercuts depending on the application requirements.

Compression Limiters from Vogelsang Fastener Corporation are a cost-effective alternative to a machined part or cut to length tube.  Seams may be fully closed, closed ID, closed OD, or fully open, all with the gap maintained to specified tolerances.