Specification for general purpose Acme screw threadsWhat is BS 1104 Acme screw thread specifications about? The Acme screw thread is extensively used for a variety of purposes and the need has been established for a range of threads for different classes of work. BS 1104 discusses standards for acme screw threads used for general engineering purposes. Four classes of threads are provided designated 2G, 3G, 4G and 5G. BS 1104 recommends a standard series of diameters and associated pitches for general

Purposes of health summary records

Special applications (for instance tram systems) can require different demands and need to be agreed upon between customer and supplier

the tests described in ISO 1217 are considered equivalent alternatives

to and through equipment elements and structures

but not a guarantee

Connector shielding accessories

test methods and performance criteria for point heat detectors for use in fire detection and fire alarm systems for buildings (see BS EN 54-1:1996)

uncertain or approximate dates

External business or technical specialists

BS EN 14351-2 ensures that internal pedestrian doorsets products are safe and effective at the point of use

that is without its packaging

3– Specification for claw-to-gate distance in spool-loading cinematograph equipment about