Galvanized steel
Stainless steel A2
Brass + nickel
| d | 1.6 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 7 | 8 |
| dk | 3 | 3.8 | 4.7 | 5.6 | 6.5 | 7.5 | 8.3 | 9.2 | 10.2 | 11 | 12.5 | 14.5 |
| k | 0.96 | 1.2 | 1.5 | 1.65 | 1.93 | 2.2 | 2.35 | 2.5 | 2.75 | 3 | 3.5 | 4 |
| n | 0.4 | 0.5 | 0.6 | 0.8 | 0.8 | 1 | 1 | 1.2 | 1.2 | 1.6 | 2 | 2 |
DIN 97 metric countersunk head screws are fasteners used for fastening wood to wood or for screwing into soft plastic.
The sharp-edged threaded part ensures efficient penetration and connection of surfaces.
The DIN 97 self-tapping screw has a straight slot and is made of galvanized steel, as well as A2 stainless steel and brass.
Analogous to DIN 97:
GOST 1145-80 – countersunk head screws with a core diameter of 1.6 to 10 mm.
Marking
d – diameter of the screw rod
d k – diameter of the countersunk screw head
k – head height
n – width of the straight spline