| 摘要 |
PROBLEM TO BE SOLVED: To provide a torque display member which makes a worker recognize proper fastening torque in response to a circumferential temperature while solving a problem that an axial force of a screw member cannot be properly managed by a conventional method which manages the axial force by fastening at target torque without taking into consideration the circumferential temperature since a relation between the axial force of the screw member and fastening torque is changed according to the circumferential temperature of the screw member.SOLUTION: A torque display member of a screw member has a partitioned region whose surface is brightly displayed in response to a circumferential temperature, and the proper fastening torque of the screw member which corresponds to the circumferential temperature is described in the partitioned region.SELECTED DRAWING: Figure 1 |
