The DS9093RA Lock Ring is a stainless-steel fastener that provides an inexpensive method for firmly attaching an iButton? to any item with a pre-punched hole. The iButton is inserted through the hole and is restrained by the flange on the iButton. The DS9093RA Lock Ring is crimped onto the portion of the iButton that protrudes through the hole.

The optional DS9093RB Flange Enlargement is a thin, stainless-steel washer that provides additional surface area to improve retention of the iButton in materials that are very thin or flexible. The DS9093RB is formed with a slight dome to improve the gripping force exerted onto the pre-punched material. The domed side of the washer should face the flange of the iButton, the flat side should face the material.