BS A 273:1978

Specification for gauging practice for 100° countersunk head fasteners for flushness control|Flushness tolerances, Dimensional tolerances, Countersunk fasteners, Fasteners, Gauges, Measuring instruments, Dimensional measurement, Heads (fasteners), Aircraft components, Air transport engineering, Bolts, External-thread fasteners, Threaded fasteners, Rivets, Threadless fasteners, Dial gauges Click the banner to get it at ONLY: GBP98.00