| 摘要 |
Shank portions (32, 34) of a bolt (28) fit through an opening (22) in a base member (14). A bolt head (30) fits within a shallow socket (24) in a first side of the base member (14). The first side (18) of the base member (14) is placed against a support member (12) and is welded in place (16). The tubular end (48) of a post member (10) is moved endwise into an trepan groove (26) as the post (10) is rotated to first make and then tighten a screw connection (34, 40) between an insert (38) in the post member (10) and a threaded portion (34) of the bolt (28). The bolt (28) and insert (38) are made from a hard metal. The base member (14), the suppport member (12) and the post member (10) are constructed from a soft metal.
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