bs 3692-2001 speccification for bolt and nut
TRANSCRIPT
![Page 1: BS 3692-2001 Speccification for Bolt and Nut](https://reader030.vdocuments.mx/reader030/viewer/2022012403/54f4fcd24a7959b53d8b49df/html5/thumbnails/1.jpg)
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NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW
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2/3 H minI
Depth ofbasic threadH
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1/10 H maxI
Completely and partiallydecarburized zone
Non - decarburized zone
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30°
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see Clause 8
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45°
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see Clause 17
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30°
30°
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30°
Countersink dasee clause 10.2.2
120 ± 10 chamfer
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Small end of thread = nom.effect dia. of nut minus0.02 mm approx. on 3 mmdia. up to 0.12 mm approxon 39 mm dia.
Large end of thread = coursefit max. effect dia. of nut plus0.035 mm approx. on 3 mm dia.up to 0.12 mm approx. on 39 mm dia.
Dia. of gauging surfaceequal to the minimumacross distance flats of nut
Thread tapered atan included angleof approx. 0.5º
Nut to begauged
Feeler gauge equalto squareness tolerance(max.)
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Hardened and tempered test plate
D = d with limits to Class D11 (BS 1916)
Hardened and tempered mandrel
Load
d≥
D
d
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