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| Brand Name : | YONGBIAO |
| Model Number : | Hexagon Bolt with Washer Assemblies |
| Certification : | ISO9001 |
| Price : | Negotiation |
| Payment Terms : | TT |
| Supply Ability : | 5000000 Tons/Year |
| Delivery Time : | 7-25Days |

High Strength Phillips Hex Head With Lock And Plain Washer
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



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| Company Info. |
| NINGBO YONGBIAO FASTENER CO.,LTD |
| Verified Supplier |
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