Cross-recessed (+) hexagon upset P=3 (SW+JIS W assembled)

Brand :
SUNCO
Caution
- Please note that if the mating part is to be prepared by the customer, it will not fit unless it is over-tapped according to the standard.
- Since hot-dip galvanizing results in a very thick coating, please select a product with the same surface treatment for the mating component.
- The product images are representative only. Specifications may vary by part number, including shape and color.
Product Description
A spring washer and flat washer are fitted to the hex head screw to prevent it from coming loose.
Drawing

Specifications Table
| Nominal thread size (d) | Pitch | K | S | Cross-recessed | Plain washer D1 x T | spring lock washer d1 (Max.) | a (Maximum value) | ||
|---|---|---|---|---|---|---|---|---|---|
| Reference dimensions | Tolerance | Reference dimensions | Tolerance | ||||||
| M3 | 0.5 | 2 | +/- 0.1 | 5.5 | 0 -0.2 | 2 | 8 x 0.5 | 5.5 | 3.0 |
| M4 | 0.7 | 2.8 | 7 | 2 | 10 x 0.8 | 7 | 4.4 | ||
| M5 | 0.8 | 3.5 | +/- 0.15 | 8 | 2 | 12 x 0.8 | 8.5 | 5.2 | |
| M6 | 1.0 | 4 | 10 | 3 | 13 x 1.0 | 11.5 | 6.3 | ||
| M8 | 1.3 | 5.5 | 13 | 0 -0.25 | 3 | 18 x 1.6 | 14.5 | 8.4 | |
| M10 | 1.5 | 7 | +/- 0.2 | 17 | 4 | 22 x 1.6 | 17.5 | 10.0 | |
| M12 | 1.8 | 8 | 19 | 0 -0.35 | 4 | 26 x 2.3 | 20.5 | 12.3 | |