Guides & Technical Knowledge
Decision guides and technical explainers for thread insert selection — written by the engineering team that manufactures them.
The guides hub collects selection decisions in one place: which repair technology, which standard, which material. Each guide compares options honestly and ends with a direct engineering channel for your specific case.
Guides
Helicoil vs Time-Sert: Wire Insert or Solid Repair Insert?
Structure, installation, strength, reusability and cost — plus application-based selection table.
MS21209 vs NASM21209: What Changed?
Designation history, interchangeability and citation practice for drawings and POs.
Free-Running vs Screw-Locking
The functional-type decision inside the wire insert family, with a comparison table.
Tangless vs Tanged Coils
Installation, FOD and removal differences — when tangless pays for itself.
Topic Request?
Want a guide on a specific comparison or parameter table? Engineering writes it.