Locking wire offers a quick and effective way to secure fasteners. Also known as safety wire, it consists of flexible metal wire. You can wrap locking wire around bolts, screws, pins and other fasteners to prevent them from loosening. If you’re planning to use locking wire, though, you should consider the following tips.
Choose the Right Size
You should choose locking wire in the right size. Locking wire is available in different diameters, ranging from 0.02 to 0.04 inches. Thick locking wire is strong and more durable, but thin locking wire is typically easier to work with.
Twist Tightly
Be sure to twist the locking wire tightly around the base of the fasteners with which you intend to use it. If it’s loose, it won’t hold or support the fasteners. Locking wire is designed to reinforce fasteners and prevent loosening. You can install it by twisting it around the base of the fasteners. Ensuring the locking wire is wrapped tightly around the fasteners will reinforce them so that vibration-related loosening doesn’t occur.
Don’t Overtighten
While you should create tight twists with the locking wire, don’t make the mistake of overtightening it. Overtightening will result in excess tension. Over time, this tension can weaken the locking wire and increase the risk of breakage.
Don’t Reuse
Always use new locking wire. Used locking wire may have kinks or frayed strands, which can weaken its integrity. If you reuse it, the locking wire may fail. You can avoid problems such as this by err on the side of caution and opting for new locking wire.
Use Locking Wire Pliers
Rather than trying to install it by hand, use locking wire pliers. As the name suggests, locking wire pliers are designed specifically for locking or safety wire. Using them, you can effortlessly install locking wire.
6 to 8 Twists Per Inch
A good rule to follow when installing locking wire is to aim for six to eight twists per inch. For every 1 inch of locking wire, for instance, you should make six to eight twists. Fewer twists will result in a loose fit. Too many twists, on the other hand, will create excess tension.
Anchor Properly
Another tip to follow when using locking wire is to anchor it properly. Locking wire should be anchored to a solid and secure point. Most fasteners with which it’s used have a pre-drilled hole in the center. You can anchor the locking wire by running it through these holes.
