Cross Recessed Blue-White Zinc Plated Hex Head Bolt with Spring
& Flat Washers
1.Products Details:
This assembly is a pre-configured fastening solution combining
three components:
1. Cross Recessed Hexagon Head Bolt: Features a hexagonal shank for
wrench tightening and a cross-shaped recess (Phillips drive) for
screwdriver compatibility, offering dual-tool accessibility.
2. Spring Washer: A helical washer that provides tension and
vibration resistance, preventing loosening under dynamic loads.
3. Flat Washer: A thin circular washer placed between the bolt head
and the surface, distributing pressure evenly and protecting the
material from damage.
2.Key Features:
- Saves time by eliminating separate component handling during
installation.
- Spring washer reduces loosening in high-vibration environments
(e.g., automotive, industrial machinery).
- Flat washer prevents bolt head indentation on soft materials
(e.g., wood, aluminum).
- Hex head + cross recess allow flexibility in installation tools.
3.Technical Parameters of Hex Bolt with lock and plain washer
d | M4 | M5 | M6 | M8 |
a | MAX | 1.4 | 1.6 | 2 | 2.5 |
b | MIN | 38 | 38 | 38 | 38 |
h | 0.8 | 1 | 1.6 | 1.6 |
H | 2.75 | 3.25 | 4 | 5 |
dc | 9 | 10 | 12 | 16 |
d2 | 6.78 | 8.75 | 10.71 | 13.64 |
4.Certificate Display
5.Production Process
6.Packaging and shipping Details