Purpose of LockwireLock Wire

What is Lock Wire? Lock wire is a crucial safety tool for ensuring mechanical stability. Bolts, screws, nuts and other types of fasteners will eventually loosen over longer periods of time. This especially occurs in applications that produce high levels of vibrations. Applications like sports cars, aircraft turbine engines and even weaponry can benefit greatly from the implementation of safety wire.

Lock wire’s central purpose is the prevention of loosening for nuts, bolts, and other fasteners. This tool essential ties two or more parts to one another, so they remain as secure as possible. Safety wiring prevents the loosening of fasteners by counteracting it with more tightening.

The common application method for the installation of safety wire involves twisting two strands of wire together with a “Double Twist” configuration. The single-strange installation method is more applicable in situations with closely-spaced fasteners. The number of fasteners lock wire can secure depends on how many are within reach of 24 inches of wire.

Additionally, it is important to avoid using safety wire for applications that involve excess chafing, tension or fatigue outside of the wire’s intended tightening function.

Lock Wire Application Methods

Performing safety wire installation involves choosing one of two methods. The double-twist method is the most typical of the two, while the single-wire method is more useful for nuts, bolts and other fasteners in closely-grouped configurations. Single-wire applications also include parts for electrical systems or hard to reach places.

For the double-twist application method, the diameter of the wire depends on the type of fasteners. Parts with hole diameters exceeding .045 inch require wiring of .032 inch in diameter.

Those with hole diameters between .045 and .062 inch and spacing of fewer than 2 inches between each part require wire double-strand wire of .020 inch in diameter.

However, the single-wire method requires the use of the largest wire that can fit in the fasteners hole.

Additionally, aluminum wire of .031 inch diameter, copper wire of .020 inch diameter and similar types of wire function as seals on specific forms of equipment. This includes portable fire extinguishers, first-aid kits, emergency valves and equipment with similar construction.

Malin Co. Safety Wire Products

Malin Co. functions as a valuable resource of effective lock wiring products for various industries. Our products can reliably maintain the security and tightness of fasteners. Malin Co. lock wire is a positive locking device, which helps maintain safety standards in aerospace, automotive and many other applications.

We color code each of our lock wire products with recyclable, polyethylene containers:

  • Blue canisters contain Malin’s famous Stainless-steel lock wire.
  • Yellow canisters contain Inconel lock wire.
  • Organ canisters contain oxidized Inconel safety wire.
  • Red canisters contain Monel lock wire.

Polyethylene safety wire canisters also don’t degrade like paper canisters. Furthermore, our lock wire canisters will protect your lock wire from grease formation and corrosive materials.

In addition, we offer our safety wire products in spools, coils and bulk purchase options to fulfill each customer’s packaging needs.

Products We Offer:

Stainless Steel Aerospace Safety Wire- Standard materials of stainless steel type 302/304 ASTM A 580, 305 and 316 stainless are available upon request.

Inconel Aerospace Lock Wire

Oxidized Inconel Aerospace Safety Wire

Monel Aerospace Lockwire

Copper & Brass Breakaway Wire- Our copper and brass breakaway wire is available in 1 & 5-pound spools. However, other packaging options are available:

  • Custom spools
  • Bulk spools
  • Bobbins
  • Boxed coils
  • Bulk coils
  • 1/4-pound Handi-Pak coils

General & Industrial Wire

  • Aluminum
  • Brass
  • Nickel
  • Nickel Silver
  • Stainless Steel (302, 303, 304, 304L, 316, 316L, 410, 430)
  • Phosphorous Bronze
  • Nitinol
  • Copper
  • Chromel carbon (black, galvanized)
  • Inconel
  • Monel
  • Titanium

We can quote other materials upon request.

Safety Wire and Lock Wire Applications: