Through Hardened Screw Tool steel is a type of carbon alloy steel that is well-matched for tool manufacturing, such as hand tools or machine dies. Its hardness, resistance to abrasion and ability to retain shape at increased temperatures are the key properties of this material. Tool steel is typically used in a heat treated condition which provides increased hardness. Several grades have additional resistance to corrosion due to added chemical properties such as vanadium. Also, with certain grades the manganese content is restricted in order to minimize the potential of cracking while water quenching. We use several different tool steel material, including JYG1, JYG2, JYG3 ... JYG6. After series of quench & annealing process, to achieve high toughness & hardness, they are especially suitable for high wearing materials and production processing. Technical Parameters Product Name: Through Hardened Screw Material :JYG1, JYG2, JYG3 ... JYG6 Suitable Machine: Injection / Bakellite Machine Available Size: Φ14 - 120mm, Length < 3,000mm Process Method: Quenching &Annealing Surface Hardness: 62-65 HRC Advantages High toughness and hardness Application General plastics & engineering plastics with below 70% glass fibre filling. -------------------------------- Ningbo Jinyi Precision Machinery Co., Ltd. (since 1992) 158 Qiancheng Road, Zhenhai District, Ningbo 315207, China Email: info@jinyiscrew.com www.jinyi-machinery.com www.jinyi-precision.com