FREQUENTLY ASKED QUESTIONS

What Certifications Does Helical Wire Hold?

Each and every order fulfilled at Helical Wire is accompanied by comprehensive, complimentary certification. While other companies only provide this documentation when requested, and for a fee, Helical Wire understands OEMs and distributors require documents such as ISO certification and melting source to maintain current files. This certification ships with every order at no additional charge. Click on the samples below for the type of certification you will receive from Helical Wire, Inc. .

What are helical wire inserts? What are they used for?

Helical Wire inserts are commonly referred to as “screw thread” inserts. These inserts make it possible to securely join two mechanical components together without the risk of a screw “backing out” due to friction, use or fatigue.

In addition, screw thread inserts are crafted from a variety of materials and finishes that are denser than parent materials to ultimately strengthen tapped holes in lightweight materials and alloys. This creates a secure joint with reduced weight and improved corrosion resistance which is vitally important for aircraft, military hardware, medical devices and technology.

How are helical wire inserts installed?

There are essentially four steps involved in a helical wire installation:

  • Step 1: Drill the hole
  • Step 2: Tap the drilled hole to create threads
  • Step 3: Load an insert into a hand installation tool and install
  • Step 4: Break of the tang mechanism
  • The hole is now ready for permanent, secure joining

What is a tap used for?

Helical Wire provides a full line of S.T.I. Taps- which create threads in a drilled hole. These threads then engage the insert when inserted into the parent material.

Why is gauging a hole important in the helical wire installation process?

Gauging a hole helps verify that the diameter of the hole is correct for the installation of the insert. Helical Wire recommends our customers calibrate gauges on a regular basis as an over-used gauge can produce inaccurate results, thereby lessening the accuracy of the reading.

What is the best way to gauge a hole?

When gauging tapped holes that have been thoroughly cleaned or may have a protective finish applied, be sure to gauge the entire depth of the tapped hole. Using your Go-No Go gauge, the Go member must run freely through entire depth of hole. The No-Go member must not exceed 2 ½ turns into tapped hole.