Since founded in 1965, HWASHIBOLT IND.CO.,LTD. has focused on special bolts as a leading company in the special bolts industry.
Recognized for its world-class technical ability and superiority in the special and engineered bolts industry, HWASHIBOLT IND. has participated in large-scale global energy projects including combined cycle power plants, nuclear power plants, and offshore plants in 22 countries over five continents, and enhanced the reputation of Korean bolts.
Based on its accumulated skills, HWASHIBOLT IND. is soaring as a global company. Currently, this company is supplying fastener products to domestic and foreign power plants (GE Power, Siemens, and Doosan Heavy Industries), three major shipbuilding companies (Daewoo Shipbuilding & Marine Engineering, Samsung, and Hyundai), and major oil companies including Shell, BP, Exxon Mobil, Chevron, and Total. In addition, HWASHIBOLT IND. is producing and supplying products tailored to meet the needs of its clients in compliance with various standards including ANSI, ASTM, ASME, GE, SIEMENS, DIN, KS, BS, and ISO.
Turbine Casing Bolts
These are supplied to many power plants in the country. Turbines are divided into two parts and connected with bolts. Many turbines require accommodating to high temperature and high pressures, and using the bolts produced by this company. The supplied items include THRU STUD, TAP STUD, COUPLING SET, DOWEL PIN, SLOTTED NUT, COVERED NUT, and ROUND NUT.
The major customers for these products include GE, SIEMENS, and MITSUBISHI.
Gas Turbine Rotor Bolt
This bolt is used to penetrate into and fasten the compressor discs of turbines rotating in high temperatures and high speed. It has the highest difficulty level amongst all turbine fasteners, so product safety and quality are very important.
This bolt is mainly used in the marine plant industry. As a close partner with leading heavy industries in the country, it has supplied many bolt products for a long time including FPSO, SUBMARINE, F-LNG, JACK-UP RIG, DRILLSHIP, and SEMISUBMERSIBLES (semisubmersible drilling rigs). The supplied products include STUD BOLT, HEX BOLT, HEX NUT, WASHER, and U-BOLT.
12-Point Screw has similar threaded configuration to hex bolts except the head unit. Depending on its service environment, it is designed to be used in higher loading applications by providing a larger contact area in the head unit.
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