SPRING INSERTS do Thread Repair SET - 200 pieces PACKAGING 200 pieces enclosed in a convenient box with compartments. UNIVERSAL SIZES Our thread inserts are the perfect solution for those who want to repair a damaged thread quickly and efficiently. TYPES OF CARTRIDGES (01) M3 x 0.5 x 2D - 50 pieces (02) M4 x 0.7 x 2D - 40 pieces (03) M5 x 0.8 x 2D - 30 pieces (04) M6 x 1 x 2D - 30 pieces (05) M8 x 1.25 x 2D - 20 pieces (06) M10 x 1.5 x2D - 20 pieces (07) M12 x 1.75 x 2D - 10 pieces SPECIFICATIONS High Quality Stal Stainless 304 Standard thread sizes High strength and precision Designed do metal, wood and other materials High resistance to high temperature and corrosion They do not deform during assembly Acid resistant Long service life Very practical and highly functional tool Spring-loaded repair inserts designed do thread regeneration. The package contains 200 pieces of springs, which are designed do thread regeneration in the desired size. Thanks to the use of a regenerative tap, screwing the spring into the socket allows you to obtain the thread outline in the required size. The inserts do not require the use of ani glue of other chemicals, which facilitates their use and reduces repair time. Our springs are made of STAINLESS STEEL 304 so they are resistant to thermal changes. This is especially important in the case of thread regeneration in car engines, where there are high thermal loads. The use of screw holes extends the life of screw parts. Application of HELICOIL technology: It is a special insert designed do strengthen and regenerate threads in applications where high resistance and quality of workmanship are required. Allows you to form the appropriate external and internal thread. Automotive Electronics Industry Carpentry Turning Housework ...and wherever you need nam solid thread