Quote History Quoted:
You gotta hit the sweet spot on tightening the nuts before installation. Too loose and the nut will just spin. Too tight and the nut won't rotate at all. The distance (gap) shown in the install pdf is spot on.
My experience has been: once the nut makes it's 90 degree turn and "locks" into place, you still have to continue to turn the bolt an entire rotation before everything tightens up.. The way it's presented, makes it seem like the process is complete once the nut has been turned 90 degrees. It isn't.
This has been my experience, YMMV.
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Once the nut rotates 90 degrees in position you torque the bolts down to the specified value as listed in the
MLOK instalation tips information re posted below...
MLOK TORQUE SPECS
• For attaching metal accessories to metal hand guards: 35 in/lbs
• For attaching polymer or metal accessories to polymer hand guards: 15 in/lbs
• For attaching polymer accessories to metal hand guards: 15 in/lbs
• The installation torque values are not minimums, they are recommended limits.
The nylon patch compound may slightly affect the torque reading if using an in/lb torque wrench.
• Using a small hex wrench should prevent over-tightening. Remember that the recoil lugs
are doing most of the work, and excessive torque on the nuts is not required.
IF YOU DON’T HAVE AN IN/LB TORQUE WRENCH, HERE ARE SOME TORQUE GUIDELINES:
35 in-lb using the long arm of an L-wrench (short end in screw)
• Standard 2-5/16” wrench
- Apply 15 lb to the end of the wrench
-Approximately 1/4” deflection at the end of the wrench
• Long 3-13/32” wrench
- Apply 9 lb to the end of the wrench
- Approximately 1/2” deflection and the end of the wrench
15 in-lb using the long arm of an L-wrench (short end in screw)
• Standard 2-5/16” wrench
- Apply 6.5 lb to the end of the wrench
- Approximately 3/16” deflection at the end of the wrench
• Long 3-13/32” wrench
- Apply 4 lb to the end of the wrench
- Approximately 1/4” deflection and the end of the wrench
15 in-lb using the short arm of an L-wrench (long end in screw)
• Apply maximum force achievable by hand