Introduction
DIN 975 withdrawn replaced by DIN 976
B7 Grade / IS - 2388
Thread bolt is also known as stud .Studs provide the ability to obtain much more accurate torque values, because the studs don't twist during tightening as bolts do. Because the studs remain stationary during nut tightening, the studs stretch in one axis alone, providing much more even and accurate clamping forces.
Steel Grades: 4.6, 8.8, 10.9, 12.9
All measurements are in mm
| Thread size D | Length | Weight kg/1000pcs | |
| M2 | M2-0.4 | 1000±10 | 18.7 |
| M2.5 | M2.5-0.45 | 1000±10 | 30 |
| M3 | M3-0,5 | 1000±10 | 44 |
| M3.5 | M3.5-0.6 | 1000±10 | 60 |
| M4 | M4-0.7 | 1000±10 | 78 |
| M5 | M5-0.8 | 1000±10 | 124 |
| M6 | M6-1.0 | 1000±10 | 177 |
| M8 | M8-1.25 | 1000±10 | 319 |
| M10 | M10-1.5 | 1000±10 | 500 |
| M12 | M12-1.75 | 1000±10 | 725 |
| M14 | M14-2 | 1000±10 | 970 |
| M16 | M16-2 | 1000±10 | 1330 |
| M18 | M18-2.5 | 1000±10 | 1650 |
| M20 | M20-2.5 | 1000±10 | 2080 |
| M22 | M22-2.5 | 1000±10 | 2540 |
| M24 | M24-3 | 1000±10 | 3000 |
| M27 | M27-3 | 1000±10 | 3850 |
| M30 | M30-3.5 | 1000±10 | 4750 |
| M33 | M33-3.5 | 1000±10 | 5900 |
| M36 | M36-4 | 1000±10 | 3900 |
| M39 | M39-4 | 1000±10 | 8200 |
| M42 | M42-4.5 | 1000±10 | 9400 |
| M45 | M45-4.5 | 1000±10 | 11000 |
| M48 | M48-5 | 1000±10 | 12400 |
| M52 | M52-5 | 1000±10 | 14700 |