BS 4174 17

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Tapping screws, cross recessed pan headInformation restricted to registered users: Login | Register now for a 14 day free trial

Dimensions in mm - source BS 4174 Table 17 Cross recess pan head self tapping screws
Publication date: 10 / 1972
Ø thread size	dk max	dk min	k max	k min	recess nr.	t min	t max	r nom	Type Z m ref.
2.2	4.24	3.94	1.35	1.14	1	1.22	1.62	3.35	2.44
2.9
3.5
3.9
4.2
4.8
5.5
6.3

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin, Germany.
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Standard BS 4174 17