150PCS 304 Stainless Steel Helical Thread Inserts M3-M8 1.5D 3D

Stainless steel thread inserts for reinforcing threads in soft materials like aluminum and magnesium. These helical screw thread inserts avoid stripping and extend the service life of threaded connections. Ideal for applications requiring frequent disassembly or high vibration resistance. The coiled wire design distributes load evenly and reduces thread wear.To install, drill and tap the host material to the specified size. Press or screw the insert into place using standard tools. For damaged threads, these inserts provide a quick repair solution without requiring part replacement. The elastic design absorbs vibration and avoids loosening under dynamic loads.Package includes 150 pieces of stainless steel threaded inserts. No installation tools included.Installation requires proper drilling and tapping tools. Thread engagement length affects pull-out strength. Check thread compatibility before installation. Stainless steel may exhibit slight magnetic properties due to cold working.Specification:Material: Stainless steel 304Color:SilverSize (inner diameter*installed pitch*installed length) M3*0.5*1.5D (20PCS)M4*0.7*1.5D (20PCS)M5*0.8*1.5 D (20PCS)M6*1*1.5D (10PCS)M8*1.25*1.5D (5PCS)M3*0.5D*3D (20PCS)M4*0.7*3D (20PCS)M5*0.8*3D (20PCS)M6*1*3D (10PCS)M8*1.25*3D (5PCS)Weight: 110g / 3.9oz (approx.)Size:12.5*6.5*2.2cm(4.92*2.56*0.87in)Package list:150 * Threaded InsertsNote:Installed length= #D means number x diameter, for example,M3*0.5*1.5D has installed length = 1.5D = 1.5 x 3 = 4.5mm(0.06 x 0.12 = 0.18in).

• Thread Protection: Our stainless steel thread inserts avoid thread break in soft materials like aluminum and magnesium ensuring reliable connections and extended service life
• Enhanced Strength: The coiled wire design distributes load evenly across threads reducing pitch deviation and absorbing vibration for superior screw retention
• Vibration Resistance: Helical structure with built-in elasticity minimizes screw loosening even in high-vibration applications requiring security
• Easy Maintenance: Damaged threads can be restored instantly by installing these inserts allowing continued use of existing workpieces without replacement
• Complete Sizing Kit: Includes 150 pieces covering M3-M8 sizes with both 1.5D and 3D lengths for versatile application across various projects