Latch-On Stop Collars Latch-On Stop Collars are preferred for non-rotating applications and are available with a draw bolt or nail for installation on the casing. FEATURESOPTIONSSimple installationSlip-on stop collars use set screws, are concentric, and are preferred for rotating applicationsLatch On stop collars are hinged and use a draw bolt or nail to attach to the casingMeets or exceeds API 10D SpecificationSlip-On available with single or double row set screws and bevelLatch-On are available with set screws or draw bolts