SPACER TUBE WITH GUIDING INDENTS

摘要

A one-piece spacer tube for receiving a fastener includes a tubular wall defining a central bore therebetween and a plurality of guiding indents integrally formed in the wall. The indents are arranged in pairs that are longitudinally spaced along the length of the wall. The guiding indents include guiding surfaces that project radially inwardly into the central bore to guide a fastener extending through the central bore.