DIN 7971 Slotted Pan Head Self Tapping Screws has two tips, the shape C - sharp and the shape F - blunt. They have a straight flat slot and can be fitted with a simple screwdriver. The main application of this screw is the fastening of soft materials, such as plastic such as plastic furniture assembly, fastening of plastic facing materials, soft steel grades, for example billboards, exhibition stands or small wooden structures. Screw C can be used without pre-drilling in the material. Screw DIN 7971 is made of steel with a galvanized surface and stainless steel A2. DIN 7971 complies with GOST 11650-80.
| D | 2,2 | 2,9 | 3,5 | 3,9 | 4,2 | 4,8 | 5,5 | 6,3 |
|---|---|---|---|---|---|---|---|---|
| DK | 4,2 | 5,6 | 6,9 | 7,5 | 8,2 | 9,5 | 10,8 | 12,5 |
| N | 0,6 | 0,8 | 1 | 1 | 1,2 | 1,2 | 1,6 | 1,6 |
| K | 1,35 | 1,75 | 2,1 | 2,25 | 2,45 | 2,8 | 3,2 | 3,65 |
| T min | 0,55 | 0,75 | 0,95 | 1,05 | 1,15 | 1,35 | 1,55 | 1,8 |
| Y | 2 | 2,6 | 3,2 | 3,5 | 3,7 | 4,3 | 5 | 6 |