Multijackbolt tensioners save time, space, and money when it comes to oversized bolts. Multijackbolt tensioners (MJT) are heavy-duty bolt-tightening devices that engineers use on critical equipment, ...
A bolt that loses its clamping force is next to useless, and many of today’s common methods for securing bolts fall in that same category, according to the engineers at Nord-Lock Inc., Muskegon, Mich.