Stainless Steel Thread Insert Kit, Metric M3-M8, 150 Pcs with Case
150 pcs stainless steel thread insert kit, in stock — a metric thread repair insert assortment M3 M4 M5 M6 M8 (10 specifications, 1.5D & 3D) in a 10-compartment storage case. Diamond-shaped stainless wire and drive tang restore stripped threads to the original bolt size. A tanged wire thread insert set with storage case for stripped thread repair for aluminum, magnesium, cast iron, automotive, machinery and DIY. Inserts only (STI tap required); OEM/ODM label, box, packaging and in-box assortment customizable.
Key Features & Callouts
Packaging,Box,Label,Assortment,Manual,Bulk & Carton...
Q: What is included in the 150-piece thread insert set?
A: 150 stainless steel tanged wire thread inserts in 10 metric coarse specifications — M3×0.5 to M8×1.25 in both 1.5D and 3D lengths — with a 10-compartment storage case. Inserts only: STI taps and installation tools are not included.
Q: What are thread inserts used for?
A: Repairing stripped, worn or damaged internal threads while keeping the original bolt size, and reinforcing threads in soft metals like aluminum, magnesium and cast iron.
Q: What is the difference between 1.5D and 3D lengths?
A: 1.5D means the insert length equals 1.5 times its nominal diameter; 3D equals 3 times the diameter — 3D inserts provide a longer thread engagement for higher load applications.
Q: Do I need special tools to install these inserts?
A: Yes. Installation requires the correct STI tap and installation tools (not included in this inserts-only kit).
Q: Are these in stock? Can we customize?
A: Yes, this kit is in stock for prompt shipment. OEM/ODM services are available: custom label, color box, barcode, instruction manual, custom sizes and quantities, and bulk packing.