| 摘要 |
A fixing cover ( 10 ) is hexagonal in shape so as to cover a bolt head or nut (as shown schematically in FIG. 4 ). The cover ( 10 ) has a body which can be made of metal, which would normally be steel or spring steel. In the three spaced side walls ( 12 a, b, c) there are inwardly projecting indentations ( 14 a, 14 b, 14 c). |
