Features:: Made of 304 stainless steel, wear-resistant and corrosion-resistant, has excellent rust and oxidation resistance, and can be used for a long time. Wear resistance: locking threaded steel wire sleeves can lock the screw in the threaded hole, so that the screw will not loosen when subjected to shock and vibration, which is better than ordinary locking devices. Anti-slip: the thread is deep, not easy to slip, and has a certain elasticity, which can make the thread force more uniform, eliminate the deviation of the thread and screw hole between the thread pitch and the tooth profile, and can absorb vibration, thereby increasing the strength of the branch connection and fatigue resistance. Wide range of applications: suitable for high voltage switchgear, hydraulic machinery, tobacco machinery, microwave communication, auto parts, air separation equipment, coal machinery, power machinery, textile and chemical machinery, etc. Package contains: 150 pcs. Thread, packed in plastic box, in many sizes, easy to use. Specifications:Material: Stainless Steel Box Size: Approx. 125x65x2 2mm/4.92x2.56x0.87inch Note:1. Please allow 1-2cm errors due to manual measurement, please make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included:20pcs M3 0.5x1.5D20pcs M4 0.7x1.5D20pcs M5 0.8x1.5 D10pcs M6 1.0x1.5D5pcs M8 1.25x 1.5D20pcs M3 0.5x3D20pcs M4 0.7x3D20pcs M5 0.8x3D10pcs M6 1.0x3D5 pcs M8 1.25x3D