DIN 608 and GOST 7786-81 – standards for bolts with a countersunk head and a low square head, accuracy class C.
DIN 608 bolts are available in two thread diameters, M10 and M12. Bolts have a small range of lengths, which limits their use in furniture manufacturing and mechanical engineering.
Ploughshare bolts in accordance with GOST 7786-81 have a wider range of sizes than DIN 608, which allows them to be used in the assembly of agricultural tillage equipment such as plows, cultivators and harrows, and they can also be used in construction equipment to fasten bulldozer blades, excavator bucket teeth and furniture assembly.
| Параметр | DIN 608 | ГОСТ 7786-81 |
| d - номінальний діаметр різьблення, мм | М10, М12 | від М5 до М20 |
| d k – діаметр головки, мм | 19, 24 | від 9 до 35 |
| f – висота головки, мм | 9, 11 | від 4 до 15 |
| l - довжина болта, мм | від 25 до 50 | від 20 до 200 |
| v - розмір сторони квадратного підголовка, мм | 10, 12 | від 5 до 20 |
| Клас міцності | 4.6, 8.8, 12.9 | 3.6, 4.6, 4.8, 5.6, 5.8, 8.8 |