| 摘要 |
<p>A resilient, axially slotted sleeve is removably mounted on the trailing threaded end portion of a fastener to be driven into hard material such as steelor concrete. The sleeve preferably includes compressible peripheral projectionsfor temporarily retaining to fastener when loaded in the mozzle of a driving tool. Having aided in guiding the fastener during driving and protected its threads from deforming and/or clogging, the sleeve is thereafter strippable from the driven fastener to enable a nut or other threaded element to be securedthereto.</p> |
