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Homepage>BS Standards>49 AIRCRAFT AND SPACE VEHICLE ENGINEERING>49.030 Fasteners for aerospace construction>49.030.01 Fasteners in general>BS A 297:1987 Specification for internal drive, offset cruciform recess (Torq-Set(R)) for rotary fastening devices. Metric series
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immediate downloadReleased: 1987-03-31
BS A 297:1987 Specification for internal drive, offset cruciform recess (Torq-Set(R)) for rotary fastening devices. Metric series

BS A 297:1987

Specification for internal drive, offset cruciform recess (Torq-Set(R)) for rotary fastening devices. Metric series

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Standard number:BS A 297:1987
Pages:12
Released:1987-03-31
ISBN:0 580 15841 1
Status:Standard
DESCRIPTION

BS A 297:1987


This standard BS A 297:1987 Specification for internal drive, offset cruciform recess (Torq-Set(R)) for rotary fastening devices. Metric series is classified in these ICS categories:
  • 49.030.01 Fasteners in general

This International Standard specifies maximum and minimum dimensional requirements for an internal drive recess configuration for rotary fastening devices, and for the associated drivers and gauges, for metric design. The combinations suggested herein are provided for metric shank diameters.


Specifies maximum and minimum dimensional requirements for rotary fastening devices, and for associated drivers and gauges, for metric design.