Cross-recessed (+) pan head P=4 (SW+JIS compact W assembled) machine screw
:
SUNCO
A spring and small flat washer are embedded in the pan head screw with a shape that prevents them from falling off.
Drawing
*The L dimension corresponds to the number at the end of the part number. L dimension tolerance: "+0 -0.6"
Specifications Table
| Nominal thread size | Machine Screw Main Body | Plain washer D1 x T | Spring lock washer | a | ||||
|---|---|---|---|---|---|---|---|---|
| dk | k | Cross-recessed | d1 (Maximum) | |||||
| Cross-recessed number | m (Reference) | |||||||
| M2 | 3.5 | 0 -0.4 | 1.3 +/- 0.1 | 1 | 2.2 | 4.3 x 0.4 | 4 | 2.1 |
| M2.3 | 4 | 0 -0.4 | 1.5 +/- 0.1 | 1 | 2.4 | 4.6 x 0.4 | 4.6 | 2.5 |
| M2.6 | 4.5 | 0 -0.4 | 1.7 +/- 0.1 | 1 | 2.6 | 5 x 0.5 | 4.8 | 2.7 |
| M3 | 5.5 | 0 -0.5 | 2 +/- 0.15 | 2 | 3.6 | 6 x 0.5 | 5.5 | 3.0 |
| M3.5 | 6 | 0 -0.5 | 2.3 +/- 0.15 | 2 | 3.9 | 7 x 0.5 | 6.2 | 3.4 |
| M4 | 7 | 0 -0.5 | 2.6 +/- 0.15 | 2 | 4.2 | 8 x 0.5 | 7 | 4.4 |
| M5 | 9 | 0 -0.6 | 3.3 +/- 0.15 | 2 | 4.9 | 10 x 0.8 | 8.5 | 5.4 |
| M6 | 10.5 | 0 -0.7 | 3.9 +/- 0.2 | 3 | 6.3 | 11.5 x 0.8 | 11.5 | 6.9 |
| M8 | 14 | 0 -0.8 | 5.2 +/- 0.2 | 3 | 7.8 | 16 x 1.2 | 14.5 | 8.4 |