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Metal M4 M6 Carbon Steel Blue White Galvanized Hex Flange Bolt With Nut DIN6921
Product Specifications
Attribute
Value
Thread Pitch
Customized
Length
Customized
Sample
Available
Thread Type
Coarse/customized
Package
PE+Carton +Pallet
Standard
DIN
Application
Construction, Automotive, Machinery
Measurement System
INCH, Metric
Style
steel washer
Size
1/4 inch
Quantity
100
Shape
Round
Head Style
Truss, Flat
Bulk Lead Time
15~20 days
Function
Connection, Fastening
Service
Customized OEM
Thread Size
20
Usage
Fastening
Product Description
Types of Galvanization
Galvanized hex bolts are coated with zinc through two primary methods:
Hot-Dip Galvanizing (HDG)
The bolt is immersed in molten zinc (≈450°C), forming a thick, robust zinc-iron alloy layer
Provides superior corrosion resistance (up to 50+ years in mild environments)
Ideal for outdoor or marine applications
Thicker coating (50–150 μm) but may have a slightly rough surface
Electro-Galvanizing (Electroplating)
Zinc is deposited via electrolysis, creating a thin, smooth coating (5–25 μm)
Offers moderate corrosion protection, suitable for indoor or dry environments
Maintains precise thread dimensions due to thinner coating
Key Applications
Galvanized hex bolts are essential in industries exposed to moisture, chemicals, or weather:
Construction & Infrastructure: Structural steel connections (beams, bridges, towers), roofing, HVAC systems, and outdoor fixtures
Automotive & Transportation: Chassis components, trailers, and marine equipment
Energy & Utilities: Power line towers, wind turbines, and solar panel mounts
Agriculture & Marine: Farm machinery, irrigation systems, and boat fittings
General Manufacturing: Machinery assembly, pipelines, and industrial equipment
Product Images
Ordering Information
Brand Name: JS
Model Number: DIN603
Place of Origin: China
Certification: DIN603
Minimum Order Quantity: 1 PCS
Price: $0.02
Packaging Details: bag+carton
Delivery Time: 15-20 days
Payment Terms: T/T L/C
Supply Ability: 5000000PCS/WEEK
Packing & Shipping
Product Packaging:
Each metal bolt is packaged in a clear plastic bag with a label indicating size and quantity
Bags are placed in sturdy cardboard boxes with cushioning material to prevent damage
Shipping:
Shipped via standard ground shipping through trusted carrier partners
Shipping costs vary depending on destination and quantity ordered
Customers receive a tracking number to monitor shipment progress
Support & Services
Comprehensive technical support for installation, operation, and maintenance
Repair and replacement services for defective products
Training and consultation services to maximize product potential
Customized OEM services available
Frequently Asked Questions
Q: What is the Brand Name of the metal bolt?
A: The Brand Name of the metal bolt is JS.
Q: What is the Model Number of the metal bolt?
A: The Model Number of the metal bolt is DIN603.
Q: Where is the metal bolt produced?
A: The metal bolt is produced in China.
Q: Does the metal bolt have any certification?
A: Yes, the metal bolt is certified with DIN603.
Q: What is the minimum order quantity for the metal bolt?
A: The minimum order quantity for the metal bolt is 1 PCS.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2007
Total Annual:
15000000-20000000
Employee Number:
100~200
Ecer Certification:
Verified Supplier
Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of member of ... Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of member of ...