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80° Recess countersunk head screws, type ZInformation restricted to registered users: Login | Register now for a 14 day free trial
1757_eEVBnQ_bs-4174-9.jpg

Dimensions in mm - source BS 4174 Table 9 80° Recess countersunk head screws, type Z:

Publication date: 10 - 1972

Ø thread size
dk min
dk max
k nom
t min
t max m nom recess nr.
ST 2.2
3.73 4.37 1.3 1.19 1.6 2.4 1
ST 2.9
4.95 5.71 1.7 1.85 2.26 3.05 1
ST 3.5
ST 4.2
ST 4.8
ST 5.5
ST 6.3
ST 8



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