What is BS 3580 – Screw threads design guide about?
BS 3580 helps to serve as a guide to the design of load-bearing screwed connections. The aim of BS 3580 is to make designers aware of the various factors influencing the strength of such connections and to give some estimate of the effect of these factors.
This guide provided in BS 3580 relates to applications of triangular (V-form) screw threads where strength considerations have to be borne in mind. BS 3580 is intended to draw the attention of designers to the principal strength factors to be considered in following out details of a design, with some mention of measures which may be adopted to improve strengths.
Who is BS 3580 - Screw threads design guide for?
BS 3580 on screw threads design guide is useful for:
- Manufacturers and suppliers of screw threads
- Mechanical engineers
- Design engineers
- Organizations that design and maintain screw threads
- Industries where screw threads are used
- Research and development team
- Inspection bodies
- Quality control personnel
Why should you use BS 3580 - Screw threads design guide?
To a given problem of screw thread design, there may be several solutions, between which it is not possible to choose in the light of present knowledge. A threaded fasteners are designed to withstand axial loads, which may be static, fluctuating, or impactive in nature.
BS 3580 provides you with guidance which relates to behaviour at temperatures where creep and metallurgical changes are unimportant and is concerned with screwed connections. BS 3580 also guides you with form of bolt failure, tensile strength of bolt related to stress area, stripping strength, and fatigue strength screw threads.
BS 3580 introduces methods of threads production which include cold rolling, and root rolling. Cold rolling can produce bolt threads with greater strength than machined threads. Root rolling method is useful for special threads and large diameters. BS 3580 concerns torque-tension relations and the effect of thread friction on permissible tightening stresses.
Using the guidelines provided in BS 3580, you will be able to understand various factors influencing the strength of screw thread connections.