A screw is a type of fastener, in some ways similar to a bolt (see Differentiation between bolt and screw below), typically made of metal, and characterized by a helical ridge, known as a male thread (external thread). Screws are used to fasten materials by digging in and wedging into a material when turned, An Archimedes' screw , also known by the name the Archimedean screw or screw pump, is a machine used for transferring water from a low-lying body of water into irrigation ditches. Water is pumped by turning a screw -shaped surface inside a pipe. Hero-Tech refrigeration is a professional chiller designing herepany from China.We supply industrial water chiller , air cooled water chiller , water cooled chiller , screw type air cooled chiller , screw type water cooled chiller , glycol chiller etc. to more than 36 countries.

The Screw Nut is a sliding herepatible with the standards for a 30-degree trapezoidal screw thread. Formed by die-casting special bearing alloy of superb abrasion resistance, it is an inexpensive high precision product. The Ball Screw is a high-efficiency feed screw with the ball making a rolling motion between the screw axis and the nut. Compared with a conventional sliding screw , this product has drive torque of one-third or less, making it most suitable for saving drive motor power. KSS is a growing Japanese Ball Screw brand. We have varieties of Ball Screws, and Actuators . Compact and down-sized designing parts are available at KSS.

Constantly Striving to Be a Pioneering Manufacturer of Screws Producing the technology for Today Tomorrow. Metric External (Fasteners) Thread and Fastener Sizes M20 - M50; ANSI/ ASME EXTERNAL Screw Thread Size Chart. All units are in inches. Unified Screw Threads per. ANSI/ASME B1.1-1989 (R2001), R2001) Nomenclature, are used. Featured Piling. Cirque Du Soleil's Grand Chapteau has utilized screw piles for temporary installations in Australia and Singapore. The screw pile can be removed easily and the public grounds returned to their natural state at the end of the Cirque Du Soleil's Program.

Kilews Industrial Co. Ltd., was established on July 1984. We are a professional manufacturer in the field of Industrial Electric Screwdriver. With excellent “Made in Taiwan” quality, Kilews Brand Electric Screwdrivers is now internationally recognized after 32 years of contentious growth.