Tornillos de roscar con cabeza avellanada truncada y ranurada de 80°

Dibujos dimensionales y diagramas técnicos

1748_28SUd3_bs-4174-14.jpg

Dimensiones clave y parámetros técnicos

Dimensions in mm - source BS 4174 Table 14 80° slotted truncated raised countersunk head tapping screws:

Publication date: 10 - 1972

Ø thread size
dk min
dk mx
k max
k min
t nom
n min
n max f nom
ST 2.2
3.73 4.37 0.91 0.71 0.94 0.58 0.79 0.64
ST 2.9
4.95 5.71 1.19 0.96 1.22 0.79 0.99 0.84
ST 3.5
6.2 7.09 1.5 1.22 1.5 0.99 1.22 1.02
ST 4.2
7.42 8.43 1.78 1.47 1.8 1.14 1.37 1.22
ST 4.8
8.64 9.78 2.06 1.73 2.08 1.27 1.52 1.4
ST 5.5
9.88 11.13 2.34 1.98 2.39 1.402 1.7 1.6
ST 6.3
11.48 12.88 2.72 2.34 2.77 1.63 1.9 1.83
ST 8 14.43 16.13 3.4 2.95 3.48 1.83 2.13 2.29