Machine Screws
stainless steel | carbon steel | alloy steel | specials
Slotted Csk head screws from ITA Fasteners require its hole of insertion to be pre-drilled. It also requires a washer to be kept in its place and withstand the effect of small moments and vibrations. It is available in stainless steel, carbon steel, and alloy steel to bear more wear and tear while also making it more corrosion resistant. The application of these screws mainly lies in the fastening of machine components, tools, and electronic components.
Since they are slotted, a screwdriver can be used to insert and remove these screws without damaging the surface of operation. The countersunk assembly is uniquely designed to make adjustments easy for you. These screws are an excellent choice for when the head of the screw needs to sink into the material thoroughly. They bring a good amount of versatility to the table as they can be used on a wide range of joints irrespective of its location in the assembly.
DIN 963
Metric: M2 to M6
Inches: 1/8” to 2BA
Legend:
d1- the nominal diameter of the thread
k - head height
n - groove width
t - groove depth
dk - head diameter
L - length of bolt
Makings:
Steel: 4.8
Stainless: A2,A4
Plastic: Plastic Pa
Non Ferrous: Brass
Thread:6g
Notes:
Table according to DIN 963:
dimensions in mm
| Thread d | M1 | M1,2 | M1,4 | M1,6 | M2 | M2,5 | M3 | (M3,5) | M4 | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | 0,25 | 0,25 | 0,3 | 0,35 | 0,4 | 0,45 | 0,5 | 0,6 | 0,7 | 0,8 | 1 | 1,25 | 1,5 | 1,75 | 2 | 2 | 2,5 | 2,5 | |
| a | max. | 0,5 | 0,5 | 0,6 | 0,7 | 0,8 | 0,9 | 1 | 1,2 | 1,4 | 1,6 | 2 | 2,5 | 3 | 3,5 | 4 | 4 | 5 | 5 |
| b | min. | full thread | 15 | 16 | 18 | 19 | 20 | 22 | 25 | 28 | 34 | 40 | 46 | 52 | 58 | 64 | 70 | ||
| dk | nominal=max. | 1,9 | 2,3 | 2,6 | 3 | 3,8 | 4,7 | 5,6 | 6,5 | 7,5 | 9,2 | 11 | 14,5 | 18 | 22 | 25 | 29 | 33 | 36 |
| min. | 1,76 | 2,06 | 2,46 | 2,86 | 3,5 | 4,4 | 5,3 | 6,14 | 7,14 | 8,84 | 10,57 | 14,07 | 17,57 | 21,48 | 24,48 | 28,48 | 32,38 | 35,38 | |
| k | max. | 0,6 | 0,72 | 0,86 | 0,96 | 1,2 | 1,5 | 1,65 | 1,93 | 2,2 | 2,5 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| n | nominal | 0,25 | 0,3 | 0,3 | 0,4 | 0,5 | 0,6 | 0,8 | 0,8 | 1 | 1,2 | 1,6 | 2 | 2,5 | 3 | 3 | 4 | 4 | 5 |
| max. | 0,31 | 0,36 | 0,36 | 0,46 | 0,56 | 0,66 | 0,86 | 0,96 | 1,06 | 1,26 | 1,66 | 2,06 | 2,56 | 3,06 | 3,06 | 4,07 | 4,07 | 5,07 | |
| min. | 0,45 | 0,5 | 0,5 | 0,6 | 0,7 | 0,8 | 1 | 1 | 1,2 | 1,51 | 1,91 | 2,31 | 2,81 | 3,31 | 3,31 | 4,37 | 4,37 | 5,37 | |
| r | max. | 0,1 | 0,12 | 0,14 | 0,16 | 0,2 | 0,25 | 0,3 | 0,35 | 0,4 | 0,5 | 0,6 | 0,8 | 1 | 1,2 | 1,4 | 1,6 | 1,8 | 2 |
| t | min. | 0,2 | 0,25 | 0,28 | 0,32 | 0,4 | 0,5 | 0,6 | 0,7 | 0,8 | 1 | 1,2 | 1,6 | 2 | 2,4 | 2,8 | 3,2 | 3,6 | 4 |
| max. | 0,3 | 0,35 | 0,4 | 0,45 | 0,6 | 0,7 | 0,85 | 1 | 1,1 | 1,3 | 1,6 | 2,1 | 2,6 | 3 | 3,5 | 4 | 4,5 | 5 | |
| x | max. | - | - | - | 0,9 | 1 | 1,1 | 1,25 | 1,5 | 1,75 | 2 | 2,5 | 3,2 | 3,8 | 4,4 | 5 | 5 | 6,3 | 6,3 |
