Steel — 4.8; 5.8; 8.8 (galvanic zinc);
Stainless steel — A2-70; A2-80; A4-70; A4-80
Copper, brass, aluminum, polyamide PA6
| d | M1 | M1.2 | M1.4 | M1.6 | M2 | M2.5 | M3 | M3.5 | M4 | M5 | М6 | М8 | М10 | М12 | М16 | М20 |
| dk ISO/DIN | 1,9 | 2,3 | 2,6 | 3 | 3,8 | 4,7 | 5,5/5,6 | 7,3/6,5 | 8,4/7,5 | 9,3/9,2 | 11,3/11 | 15,8/14,5 | 18,3/18 | 22 | 29 | 36 |
| k ISO/DIN | 0,6 | 0,72 | 0,84 | 1/0,96 | 1,2 | 1,5 | 1,65 | 2,35/1,93 | 2,7/2,2 | 2,7/2,5 | 3,3/3 | 4,65/4 | 5 | 6 | 8 | 10 |
| b | 1) | 1) | 1) | 15 | 16 | 18 | 19 | 38 | 22 | 25 | 28 | 34 | 40 | 46 | 58 | 70 |
| n | 0,25 | 0,3 | 0,3 | 0,4 | 0,5 | 0,6 | 0,8 | 1 | 1,2 | 1,2 | 1,6 | 2 | 2,5 | 3 | 4 | 5 |
The screw din 963 with a countersunk head (straight slot) is a reliable fastening element with a metric thread applied to it (the pitch depends on the diameter of the metal product and the nominal size).
The screw with a countersunk head for a straight slot DIN 963 is indispensable in the process of production and assembly of all types of furniture, in mechanical engineering, in the design of mechanisms and equipment of various levels of complexity. It has found wide application in repair and construction activities, in all branches of the national economy and in everyday life. Requires additional components: washers, nuts and similar elements with the internal thread of the corresponding screw step rod.
Operating and technical characteristics
Screws with countersunk head din 963 for a straight slot have different sizes, raw materials and protective coating (zinc, chrome, nickel, phosphates, etc.), but all of them ensure the reliability of connections, durability, tolerance to the stated physical and/or chemical influences.
The rise angles of the screw thread have their own design features (the ratio of the rise angle and friction). Such nuances make installation sites very sensitive to systematic vibrations, shocks and force loads.
You can buy metal products manufactured according to the German din 963 standardization in various variations. Most customers appreciate the opportunity to purchase brass fasteners made of copper alloyed with zinc. Such screws are distinguished by their high strength, non-magnetism, excellent corrosion resistance, and flexibility during welding. It is worth noting that the price of this item in Kyiv is much lower than market offers.
Analogues of DIN 963:
GOST 17475-80 – countersunk head screws of accuracy classes A and B with a nominal thread diameter from 1 to 20 mm.
ISO 2009 – countersunk flat head and slotted screws (general type head). Accuracy class A.
DIN 7991 (ISO 10642) – screws with a countersunk head and an internal hexagon or with a hole for a TORX key.
Anti-vandal screws R 88112 with countersunk head with two holes, thread sizes from M3 to M6.
Marking
d – nominal thread diameter
dk – countersunk head diameter
k – head height
b – Screw thread length, min. 1) – carving to the head
n – width of the slot of the screw head