Hexagon head bolts with metric fine pitch thread. Product grades A and B Ingestion-build-133579 PD CEN/TS 17153 on ventilation

PD CEN/TS 17153 on ventilation for buildings is useful for:

ISO 21013-4 provides relief from the maximum pressure that exists in the system resulting in better performance of the system which was being suppressed by the high pressure

and fire alarm warnings for people who are hard of hearing or deaf

Authorities working with Power distribution system

Hexagon head bolts with metric fine pitch thread. Product grades A and B Ingestion-build-133579 PD CEN/TS 17153 on ventilation1 Scope This International Standard specifies the characteristics of hexagon head bolts with metric fine pitch thread with nominal thread diameters, d, from 8 mm to 64 mm, of product grade A for nominal thread diameters, d, from 8 mm to 24 mm and nominal lengths, l, up to and including 10d or 150 mm, whichever is the shorter, and of product grade B for nominal thread diameters, d, over 24 mm or nominal lengths, l, over 10d or 150 mm, whichever is the