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Description of PD 6494:1980 1980The purpose of this publication is to draw attention to the danger which can arise from the mismatch of the different thread forms and sizes in use at the present time. The responsible BSI technical committees, MEE/1, Screw threads, and MEE/60, Bolts, nuts and accessories, have considered this problem and have agreed that it should be publicized. They have also agreed to the issue of amendment slips to BS 1580 and BS 3643, drawing attention to the possibility of mismatch. Draws attention to the possibility of mismatch with the different screw thread forms available and makes recommendations to avoid this possibility.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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