Bolts, lock nuts, machine screws and stainless fasteners are just a few examples of the many products that Hercules Fasteners offers. As an experienced ISO-certified distributor, Hercules has been supplying all manner of standard and metric fasteners as well as many other products since 1985. Machine Screws . Used with either a tapped hole or nut in everything from electronics to power tools. Shoulder screws , also known as shoulder bolts and stripper bolts, are machine screws with an integral shoulder or journal between the head and thread.

With the world's leading Ball Screw , NSK has been contributing to industrial growth. NSK Ball Screws were developed through cutting-edge tribology (friction control technology), and NSK manufactures the largest volume in the world with its outstanding production and quality control techniques. This file type includes high resolution graphics and schematics when applicable. Of all the screws used for industrial motion control, ball screws rise to the head of the class, metric Torx Cap Screws metric Torx Machine Screws . Metric Screws Torx Metric Screws including Metric Torx Cap Screws , Metric Torx Machine Screws , Metric Torx Thread Forming Screws , Metric Torx Set Screws , Metric Nuts, Metric Washers, and Metric Torx Screwdrivers.

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, From inception Leland concentrated on domestic manufacture of Bolts, Nuts and Screws using only North American Steel and Labour herepeting herepetitors both at home and internationally. Collison-Goll has been providing custom machined products, built to customer specifications, for 70 years. From prototypes to PPAP to production, Collison-Goll heremitted to an effective, ongoing quality herepassing all precision machine parts.

Types of threads. In threaded fasteners, large amounts of friction are acceptable and usually wanted, to prevent the fastener from unscrewing. So threads used in fasteners usually have a large 60 thread angle: (a) V thread - These are used where additional friction is needed to make sure the screw remains motionless, such as in setscrews and adjustment screws ,