BS 1127 is a British standard that discusses screwing dies and dies nuts. BS 1127-1 is the first part of the multi-part series that outlines the general dimensions of hand-operated and machine-operated screwing dies to manufacture hand- and machine-operated circular screwing dies and hand-operated die stocks of the correct size.
These dimensions, established as a function of the thread diameter and pitch, are the following:
BS 1127-1 also gives the interchangeability dimensions of hand-operated die stocks.
BS 1127-1 applies to screw dies intended for the manufacture of the following threads:
BS 1127-1 on hand- and machine-operated circular screwing dies and hand-operated die stocks are useful for:
Screwing dies is either of the two parts of a hollow, internally threaded tool used to cut a screw thread. A die nut also known as a thread chaser is used for sharpening an existing thread. It is run over threads that may have been damaged or blunted overtime to correct them to their original condition.
BS 1127-1 assist you with ISO metric threads on the coarse thread and fine thread, ISO inch threads on the “unified coarse” series (UNC) and “Unified fine” series (UNF), die stocks interchangeability dimensions, and marking of hand- and machine-operated circular screwing dies and hand-operated die stocks. This assists in manufacturing highly durable, efficient and high standard hand- and machine-operated circular screwing dies and hand-operated die stocks.
With obedience and compliance to BS 1127-1, you can enhance the efficacy of your hand- and machine-operated circular screwing dies and hand-operated die stocks.
ISO 2568:1988