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BS 4185-9:1976
Specification. Machine tool components. Levelling screws, nuts and seating plates (British Standard)
Dimensions and materials for the metric series of screws for use with foundation (holding down) bolts and their related lock nuts and bolts. Nominal diameter only of the associated foundation bolts. Recommendations for thickness of flange with which levelling screws should be installed, for grouting foundation bolts and for maximum static load for levelling screws.
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British Standards Institution [bsi]
British Standards Institution [bsi]