Pivot screw for adjustable furniture has stepped shank with non-threaded guide tip and thread

摘要

The pivot screw for adjustable furniture has a non-threaded shaft guide tip section (12) and a shaft (13) with a larger diameter section (14) under the head. The threaded section is shorter than the thickness of the corresponding furniture section (9). The enlarged section (14) is shorter than the furniture side strut thickness (10) and has a larger diameter than the thread.