Fastening bolt for insertion into blind bore in masonry wall has swivel holding ring and has bolt inside housing, pushing balls outward to engage in groove in blind bore in dowel in wall

摘要

The fastening bolt assembly (1) has a swivel pin (14) passing through bores (7,8) in shackle ends (5,6) forming part of a fastening ring (2). The pin passes through a bore (13) in a stepped profile housing (16). A bolt with an actuating button (18) inside the housing pushes balls (17) outward to engage in a groove in the blind bore in a dowel inserted in a blind bore in a masonry wall.