Rocklin, CA (PRWEB) May 19, 2015
Perfect Lock Bolt America, Inc. introduced today the Perfect Lock Bolt (PLB) today, a dual-threaded bolt and nut system engineered to reduce or eliminate self-loosening problems in the fastener industry.
The PLB consists of a dual-threaded bolt shaft and two nuts of different thread pitches. The first, or primary nut on the shaft, is a coarse thread nut. The outer, or secondary nut on the shaft, is a fine thread nut, or “lock nut.” When the PLB is subjected to a self-loosening force in any form, the primary nut moves away from the preloaded pressure along the bolt shaft faster than the secondary lock nut. Under any loosening force, the primary nut and the secondary lock nut move away from the pre-loaded pressure at different rates, creating mechanical lock between the two nuts.(…)
