Lockbolts are useful for manufacturing and construction applications in which there is heavy vibration because they will not shake loose. They are tougher than rivets or screw joints. The swaged locking collar is what gives lockbolts their lasting strength and performance.
What are lock bolts used for?
Lock bolts are a pin & collar combo that are used when seeking a permanent vibration resistant installation in place of conventional bolt & nut.
What is a lock bolt?
1 : bolt sense 2b. 2a : a bolt or pin employing a special locking collar instead of a nut. b : a bolt for securing an adjustable part of a machine in a desired position.
What are the advantages of lock nuts?
Invented in the 1930s, lock nuts offer an easier and more cost-effective solution to protecting against vibration-related loosening. Using just one lock nut, manufacturing companies can secure multiple objects together without fear of vibrations loosening the nut.
What is a lock bolt rivet?
Also pioneered in the 1940s, the lockbolt is a two-piece fastener that combines the features of a high strength bolt and a rivet with advantages over each. … A lockbolt is similar to an ordinary rivet in that the locking collar, or nut, is weak in tension and it is difficult to remove once installed.
How does a lock bolt work?
Where nuts and bolts use a threaded screw to form the joint, lockbolts use a smooth-bore collar that is fitted over a threaded bolt. When tightened, the collar is pressed into special locking grooves on the bolt. The result allows bonding across a larger surface area, creating a locking, vibration-resistant joint.
How do Lockbolts work?
HOW DO LOCKBOLTS WORK? In the initial stages of the installation process, the tool engages and pulls on the pintail. The joint is pulled together before the conical shaped cavity of the nose assembly is forced down the collar. This progressively locks (swages) it into the grooves of the harder pin.
What is high lock bolt?
HI-LOK pins are commonly used in applications that require high tensile strength in extreme environments. … HI-LOK is a simple two-part fastener engineered to achieve in one all-purpose system the design features suiting many of today’s aerospace assembly needs.
What is a headless bolt?
a bolt with threads on both ends designed to be screwed permanently into a fixed part at one end and to receive a nut on the other.
When should you use a lock nut?
Locking nuts should be used when the screw joint consists of one or more soft materials. It is difficult to achieve and to maintain a high level of clamp load because the soft material deforms due to high surface pressure. This plastic deformation continues after the torque value has been applied to the screw.
How do you use a bolt lock nut?
- Place the lock nut against the threaded end of the bolt, just as you would place an ordinary nut. …
- Hand-tighten the lock nut until it’s securely threaded on to the bolt.
- Tighten the lock nut with a torque wrench until it reaches the specified torque.
Who invented the lock nut?
Abbott Interfast began producing Nylon Insert Locknuts, also known as nyloc nuts, in 1964 as the first licensee under US Patent No. 2,450,694 for Elastic Stop Nut Corporation of America. Since that time, we have produced millions of locknuts for all types of industries and applications.
How Lockbolt are installed?
Lockbolt installation is relatively simple. A pin is placed through the pre-drilled holes to join two pieces of material. The pin has a head chosen to suit the application, such as a rounded head, countersunk head, or extra wide head for softer material to prevent pull-through.
What are the different parts of a door lock called?
The main parts of a door lock are the cylinder, bolt, box and strike plate. It’s useful for any DIY-er to know how things around the home operate.