General description Stainless steel wire thread inserts are precision-manufactured, spring-shaped fasteners featuring internal and external threads. Made from high-strength, cold-rolled stainless steel wire, these inserts are designed to enhance the durability and longevity of screw holes in both metallic and non-metallic materials. They come in two types: locking and ordinary. Technical specifications Material: Stainless Steel 304 Thread Types: M3, M4, M5, M6, M8, M10, M12 Dimensions: M3 x 0.5 x 2D (50 pcs), M4 x 0.7 x 2D (40 pcs), M5 x 0.8 x 2D (30 pcs), M6 x 1 x 2D (30 pcs), M8 x 1.25 x 2D (20 pcs), M10 x 1.5 x 2D (20 pcs), M12 x 1.75 x 2D (10 pcs) Shape: Rhombic section, similar to a coil spring Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with threaded holes in metallic and non-metallic materials Includes 2 sets of screw socket thread kits Usage Insert into threaded holes to extend the service life of screw parts Available in locking and ordinary