| 摘要 |
PROBLEM TO BE SOLVED: To provide a bolt confirming jig capable of easily comparing the length and the diameter of an inspection-objective bolt visually with a sample bolt of a reference. SOLUTION: This bolt confirming jig 1 is provided with a plate 2 and a vertical sheet 3 fixed perpendicularly to the plate 2, a plurality of kinds of sample bolts 4 is implanted with a substantially same interval in a portion sided to the vertical sheet 3 in the plate 2, and inspection holes 6 fit in with a stem part engraved with a thread of the inspection-objective bolt are formed in a position adjacent to the sample bolts 4. The inspection-objective bolt of which the length and the diameter are unknown is fitted into the inspection hole 6 near to the sample bolt 4 considered as same to the inspection-objective bolt, the inspection-objective bolt is judged as same to the sample bolt when the inspection-objective bolt is fit in vertically to the inspection hole 6 and when a height thereof is same to the sample bolt 4, and is judged not to be same when the length is different or the inspection-objective bolt falls down or comes down. COPYRIGHT: (C)2005,JPO&NCIPI
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