Pernos atornillados - Parte 2 - Recomendaciones para pernos de alta calidad

Dibujos dimensionales y diagramas técnicos

1828_MenVLC_BS-2693-2.jpg

Dimensiones clave y parámetros técnicos

Dimensions in mm - source BS 2693-2

Publication date: 08/1964

Screw Thread

d

1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2

Nr of threds per inch

20 18 16 14 13 12 11 10 9 8 7 7 6 6
Major diameter Hardness>160 hb Max 0.247 0.308 0.369 0.4305 0.492 0.554 0.614 0.736 0.86 0.9835 1.107 1.232 1.356 1.481
Min 0.2408 0.302 0.3626 0.4233 0.4846 0.546 0.6056 0.727 0.8502 0.9727 1.0952 1.22 1.341 1.467
Hardness>160 hb Max 0.247 0.309 0.371 0.433 0.495 0.558 0.6195 0.744 0.8685 0.9935 1.118 1.243 1.368 1.493
Min 0.2408 0.303 0.3646 0.4258 0.4876 0.5495 0.6111 0.735 0.8587 0.9827 1.1062 1.2312 1.3538 1.4788
Nonferrous metal Max 0.247 0.309 0.371 0.433 0.495 0.558 0.6195 0.744 0.8685 0.9935 1.118 1.243 1.368 1.493
Min 0.2408 0.303 0.3646 0.4258 0.4876 0.5495 0.6111 0.735 0.8587 0.9827 1.1062 1.2312 1.3538 1.4788
minor diameter Max 0.1932 0.2508 0.3053 0.3579 0.4140 0.4695 0.5233 0.6378 0.7503 0.8594 0.9640 1.0890 1.1477 2.3127