[THE FACT FIVE] THE "MUSCLE NUT" WILL NOT DAMAGE THE BOLT WHEN TAKEN OFF.

  • * Though the spring coil twines around bolt strongly, the Muscle Nut will not damage the bolt at all when unscrewed and taken off.
  • * The Muscle Nut may be unscrewed to be taken off by applying higher force than the spring coil's force that was designed to prevent from loosening.
  • * The bolt itself may be reused repeatedly.

[THE FACT SIX] "MUSCLE NUT" RECEIVED A PATENT IN MAY 2010.

Patent
JPN Patent No. 4514067
  • * In May of 2010, we have received a patent on Muscle Nut (as "Muscle Nut with a Conical Disc Spring")
  • * Because of the nature of coil spring, it has a slack like in the staring wheel of an automobile.
  • * The disc spring will eliminate the slack.
  • * In the test performed by JQA, a disc spring was used.
  • * However, general users do not require loosening prevention strength in such level, disc springs are not normally supplemented in the product.

FAQ on Muscle Nut

  • Q1. What is the standard used for tightening torque in the test?
  • A1. The reference value for tightening torque in the vibration test data and the torque table were provided by courtesy of Tohnichi Mfg. Co., Ltd.
  • Q2. Can the size of Muscle Nut be manufactured in special orders?
  • A2. Yes. Muscle Nuts are manufactured in standard size of M8~M24; however, we will be glad to meet your specific needs. Please contact us with particulars of your required size.

Usage Notes

The Muscle Nut is using a coil spring to prevent from loosening, thus, once taken off, the coil may not be reused. Use new Muscle Nut for a replacement.

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