| 摘要 |
A fastener assembly for use in producing an accurate tension indicating fastener unit of the type including a rotary fastener member, a conical-like spring washer preassembled thereto and gauge member preassembled between the bearing surface of the fastener and the spring washer so as to be pinched therebetween upon compression of the washer under a predetermined load. The invention is also concerned with a method of accurately calibrating such a fastener unit. |
