Bucket tooth pin, also known as tooth pin or bucket tooth fixing pin, is the core connecting accessory of excavator and loader buckets. It is specifically used to lock the bucket teeth and tooth seat, and forms a complete fastening structure with snap springs and locking plates. It can withstand continuous impact, compression, and vibration during excavation operations, prevent bucket teeth from falling off or shifting, and directly ensure equipment construction safety and operation continuity. The product covers various structures such as horizontal pins, vertical pins, wedge-shaped self-locking pins, segmented step pins, standard cylindrical pins, etc. It is suitable for a full set of bucket tooth models of various brands of large, medium and small excavators and loaders, with complete size specifications and strong universality. The product uses high-strength alloy structural steel such as 40Cr and 42CrMo as raw materials, and the blank is precision forged to form a dense and crack free whole; After quenching and tempering heat treatment, the hardness is stably controlled at HRC45-50, balancing high tensile strength and impact toughness, wear resistance and deformation resistance. It is not easy to bend, fracture, or wear under heavy mining conditions. The pin body is processed by CNC precision turning, with precise outer diameter tolerance and tight fit with the bucket tooth pin hole, reducing gap shaking; The reserved card slot and step limit structure of the sales body, combined with the locking plate card spring, can achieve self-locking and anti detachment, making it difficult to loosen and move under operational vibration; The surface has undergone blackening, phosphating, quenching and hardening treatment, which is rust resistant and wear-resistant, resistant to soil, sand and gravel, and rainwater erosion, and not easy to rust and lock. After undergoing hardness testing, impact fatigue testing, and full size inspection, each product meets the mechanical performance standards and has good interchangeability. Compared to ordinary carbon steel pins, the service life of alloy steel bucket teeth pins is increased by more than 60%, significantly reducing the cost of frequent replacement and downtime maintenance on construction sites. Widely adaptable to light and heavy load conditions such as earthwork excavation, sand and gravel yards, open-pit mining, tunnel excavation, construction waste crushing, and river dredging, and suitable for a full range of engineering machinery such as Sany, Caterpillar, Komatsu, Hitachi, and Doosan. Regular standard sizes are readily available in stock, supporting customization of elongated, thickened, and special-shaped self-locking bucket teeth pins according to the model and bucket tooth drawings.