Bhalla Fasteners is the leading manfacturer of Metric DIN 963 are slotted drive flat countersunk head machine screws. Design of din 963 metric machine screws for metal to metal applications require a pre-drilled hole with a mating metric nut for the screw to thread into. Din 963 screws are usually fully threaded with machine threads and a blunt point.Depending on the diameter of the screw to be used the recommended pre-drilled hole sizes vary but should be slightly larger in diameter than the major (maximum) thread diameter. These screws are available in zinc plated steel . Metric flat countersunk heads have a flat top surface and a cone-shaped bearing surface with a head angle of approximately 90°. They are used for applications where the head must be flush with the mating surface of the substrate.
Steel Grades: 4.6, 4.8, 8.8
Finish: Self, Black, Bright Zinc, Hot Dip Galvanized
d1 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M16 | M20 |
d2 | 3.8 | 4.7 | 5.6 | 7.5 | 9.2 | 11 | 14.5 | 18 | 22 | 29 | 36 |
k | 1.2 | 1.5 | 1.65 | 2.2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 |
n | 0.5 | 0.6 | 0.8 | 1 | 1.2 | 1.6 | 2 | 2.5 | 3 | 4 | 5 |
t min. | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.2 | 1.6 | 2 | 2.4 | 3.2 | 4 |
Metric Series | Appox Count Per 50kg. | ||||||||||
Dia | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M16 | M20 |
Length | |||||||||||
3mm | 495050 | 285714 | |||||||||
4mm | 420168 | 242718 | 171821 | ||||||||
5mm | 364964 | 211864 | 149254 | 73964 | |||||||
6mm | 328947 | 187970 | 131926 | 66313 | 41322 | ||||||
8mm | 259067 | 153374 | 107066 | 55556 | 34483 | 22831 | |||||
10mm | 216450 | 129534 | 90090 | 47170 | 29412 | 19685 | 9940 | ||||
12mm | 186567 | 112108 | 77760 | 40984 | 25641 | 17301 | 8818 | 5214 | |||
14mm | 163399 | 98619 | 68399 | 36496 | 22831 | 15385 | 7937 | 4717 | |||
16mm | 145773 | 88183 | 60976 | 32680 | 20492 | 13850 | 7205 | 4310 | |||
18mm | 131234 | 79745 | 55066 | 29762 | 18587 | 12658 | 6605 | 3968 | |||
20mm | 72780 | 50201 | 27174 | 17007 | 11601 | 6090 | 3676 | 2404 | |||
22mm | 66934 | 46296 | 25126 | 15723 | 10730 | 5656 | 3425 | 2252 | |||
25mm | 59666 | 40984 | 22523 | 14085 | 9634 | 5107 | 3106 | 2049 | 1048 | ||
28mm | 37037 | 20325 | 12723 | 8741 | 4673 | 2841 | 1880 | 967 | |||
30mm | 34722 | 19157 | 12019 | 8224 | 4386 | 2688 | 1779 | 919 | 552 | ||
35mm | 16722 | 10504 | 7184 | 3846 | 2370 | 1577 | 818 | 495 | |||
40mm | 14881 | 9276 | 6378 | 3425 | 2119 | 1416 | 740 | 450 | |||
45mm | 8306 | 5727 | 3086 | 1916 | 1282 | 671 | 410 | ||||
50mm | 7519 | 5203 | 2809 | 1748 | 1174 | 617 | 379 | ||||
55mm | 2577 | 1608 | 1082 | 569 | 350 | ||||||
60mm | 1484 | 1004 | 530 | 327 | |||||||
70mm | 967 | 463 | 287 | ||||||||
80mm | 776 | 413 | 256 | ||||||||
90mm | 373 | 231 | |||||||||
100mm | 338 | 211 |