engineering recuitment BPSC AE Mock Test 2025 Design of Machine Elements Power Screws Design of Screw and Nut
In screw threads drawing, SQ 40 × 3 indicates:
1
metric threads with major diameter 40 mm and pitch 3 mm
2
square threads with minor diameter 40 mm and width 3 mm
3
square threads with nominal diameter 40 mm and pitch 3 mm
4
square threads with minor diameter 40 mm and pitch 3 mm