| 摘要 |
A variably amplified load indicating fastener includes a fastener detachably secured to a load indicator via a base member. The fastener has an abutment moveable by a change in length under an applied load. The load indicator includes a dial plate, a needle pivotally supported by the plate, a compensating slot, a driving slot, an elongated U-shaped element disposed in direction in which the load is applied when the fastener is in use, and a first reference mark. One side of the U is attached to the fastener. The closed end of the U is proximate to and movable by the abutment. The other side of the U extends through the compensating slot and the driving slot. The needle is coupled to the outer end of said second side. A sleeve with a second reference mark fits over the outer circumference of both the load indicator and the base member.
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