Questions & Answers
Stainless steel bolt grades
High-strength stainless steels: A4-70, A4-80, A2-70, A2-80.
Low-carbon steels: A4L, A2L.
Austenitic steels: A4, A2.
Stainless steel bolt weight chart
| Diameter (M) | Length, mm | Weight of 1 piece, g | Pieces in 1 kg |
| M5 | 20 | 1.8 | 555 |
| M5 | 30 | 2.4 | 417 |
| M6 | 20 | 3.5 | 285 |
| M6 | 30 | 4.8 | 208 |
| M6 | 40 | 6.0 | 167 |
| M8 | 20 | 7.5 | 133 |
| M8 | 30 | 10.5 | 95 |
| M8 | 50 | 15.5 | 65 |
| M10 | 30 | 19 | 53 |
| M10 | 50 | 30 | 33 |
| M10 | 70 | 41 | 24 |
| M12 | 40 | 43 | 23 |
| M12 | 60 | 62 | 16 |
| M12 | 80 | 82 | 12 |
| M16 | 50 | 115 | 8–9 |
| M16 | 80 | 170 | 6 |
Stainless steel bolt standards
GOST standards:
GOST 11738-84;
GOST 7805-70;
GOST 7798-70.
International standards:
ISO 7380;
ISO 4762;
ISO 4014;
ISO 4017.