GB5783 Class8.8 Zinc Galvanized Hex Head Bolt For Machinery

Brand Name:YongBiao
Certification:ISO9001/16949
Model Number:Hex Bolt
Minimum Order Quantity:10000
Delivery Time:7-25days
Payment Terms:T/T
Contact Now

Add to Cart

Verified Supplier
Location: Ningbo Zhejiang China
Address: No.1 Lufeng Industrial Park, Wuxiang Town, Yinzhou District, Ningbo City, Zhejiang, China
Supplier`s last login times: within 1 hours
Product Details Company Profile
Product Details

GB5783 Class8.8 Zinc Galvanized Hex Head Bolt For Machinery


1.Products Details:

Hexagon head galvanized bolts are a type of fastener with a six-sided (hexagonal) head, designed for secure and reliable joining of components in various applications. They undergo a galvanization process—coating with a layer of zinc—to enhance their durability and resistance to environmental factors.


2.Key Features:

- Hexagonal Head Design:

Allows easy tightening and loosening using standard wrenches or sockets, ensuring efficient installation and maintenance.
- Galvanized Coating:

The zinc layer acts as a protective barrier, significantly improving corrosion resistance, making them suitable for outdoor, humid, or industrial environments where exposure to moisture, chemicals, or weathering is common.
- High Strength:

Typically made from carbon steel (e.g., 8.8 grade) or alloy steel, providing strong clamping force for structural and mechanical connections.
- Versatility:

Widely used in construction, automotive, machinery, electrical equipment, and infrastructure projects due to their compatibility with nuts and various materials (metal, wood, etc.).
- Cost-Effective Protection:

Galvanization offers long-term corrosion resistance at a relatively low cost compared to other protective treatments like stainless steel.


3.Technical Parameters of Hex Bolt with lock and plain washer

dM3M4M5M6M8M10M12(M14)M16(M18)M20(M22)M24
P0.50.70.811.251.51.75222.52.52.53
aMAX1.52.12.433.754.55.25667.57.57.59
MIN-------2-2.5-2.5-
cMAX0.40.40.50.50.60.60.60.60.80.80.80.80.8
MIN0.150.150.150.150.150.150.150.150.20.20.20.20.2
daMAX3.64.75.76.89.211.213.715.717.720.222.424.426.4
dwGrade AMIN4.65.96.98.911.614.616.619.622.525.328.231.733.6
Grade BMIN--6.78.711.414.416.419.22224.827.731.433.2
eGrade AMIN6.077.668.7911.0514.3817.7720.0323.3526.7530.1433.5337.7239.98
Grade BMIN--8.6310.8914.217.5919.8522.7826.1729.5632.9537.2939.55
kd22.83.545.36.47.58.81011.512.51415
Grade AMIN1.882.683.353.855.156.227.328.629.8211.2812.2813.7814.78
MAX2.122.923.654.155.456.587.688.9810.1811.7212.7214.2215.22
Grade BMIN--3.263.765.066.117.218.519.7111.1512.1513.6514.65
MAX--3.744.245.546.697.799.0910.2911.8512.8514.3515.35
k1Grade AMIN1.31.92.352.73.64.355.1266.97.98.69.610.35
Grade BMIN--2.282.633.544.285.0566.87.88.59.510.3
rMIN0.10.20.20.250.40.40.60.60.60.60.810.8
sMAX5.57810131618212427303436
Grade AMIN5.326.787.789.7812.7315.7317.7320.6723.6726.6729.6733.3835.38
MIN--7.649.6412.5715.5717.5720.1623.1626.7629.163335

4.Certificate Display

5.Production Process

6.Packaging and shipping Details

China GB5783 Class8.8 Zinc Galvanized Hex Head Bolt For Machinery supplier

GB5783 Class8.8 Zinc Galvanized Hex Head Bolt For Machinery

Inquiry Cart 0