Lockbolts With Pintails


Lockbolts with pintails are structural fasteners used in place of traditional nut and bolt applications for longer term reliability, significantly improved vibration resistance and greatly improved installation processing speed. Furthermore, unlike nut and bolt installations where torque is required on bothe the nut and bolt to create a reliable installation, lockbolts can be set from a single point on the collar side of the application.
Unlike pintail-less lockbolts, lock bolts with pintails have a break point on the pin that separates upon the completion of the installation sequence. This spent pintail section either falls to the floor or is collected in a containment process if such a process is included within the installation tooling system.
Lockbolt breakpoints are typically defined by a section on the lockbolt pin that has a reduced diameter to ensure a consistent break point. However, there are multi-grip lockbolts that are designed to avail multiple breakpoints for varied application thicknesses.
Where a nut is used to set a traditional bolt, a lock bolt collar or sleeve is used to set a lockbolt. A lockbolt collar is swaged and pulled onto the lockbolt pin and the break point on the pin occurs after the collar has been set.
While lockbolts provide an extremely efficient process, specialized tooling is required for this installation system.
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