Galvanized Fasteners

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Galvanized Fasteners

Galvanized fasteners are known as hot-dip galvanized Bolts and Nuts that have been coated with a layer of zinc to help protect them from corrosion. The galvanization process involves applying a protective zinc coating to the surface of the fastener, which creates a barrier that helps prevent moisture and other corrosive elements from reaching the metal underneath. Galvanized fasteners are commonly used in outdoor applications or in environments where they may be exposed to moisture or corrosive substances.

Normal Spangle, Skinpassed Spangle, Regular Spangle, Minimized Spangle

DX51D, DX52D, DX53D, DX54D, S220GD, S250GD, S280GD, S320GD, S350GD, S550GD

  • AISI
  • ASTM
  • DIN
  • JIS
  • GB
  • BS

Diameter: 10mm-64mm, or as customer’s requirement

Length: 10mm-64mm or customer’s requirement

Customize: Available

  • Cold Rolled
  • Hot Rolled, etc.

Available, welcome to get 5% discount!

A) Packaging Details: Standard export seaworthy packing: 3 layers packing. The inside is kraft paper, the middle is water plastic film and the ouside Galvalume steel sheet/plate to be covered by lockable steel strips, with inner coil sleeve or as customer demands.
B) Delivery Time: 30-50 days, 7 days for stock goods.
C) Loading Port: Shanghai, Tianjin, Qingdao.
D) Offer Ability: 5000MT/Per Month.
E) MOQ: 1 ton.

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Galvanized Fasteners Supplier & manufacturer

As a professional integrated steel product production and trading enterprise, Gnee Group manufactures high-quality fasteners standard Threaded Rods, bolts, nuts, stud bolts, and washers. Precision-manufactured and subject to strict quality control, our galvanized fasteners offer excellent corrosion protection and durability, making them suitable for a variety of outdoor and highly corrosive environment applications.

HIGH-QUALITY MATERIALS: Our galvanized fasteners are manufactured from high-quality carbon steel or alloy steel to ensure product strength and durability.

Strict Quality Control: We use advanced production equipment and strict quality control measures to ensure that every piece of galvanized fasteners meets the highest standards.

Specifications of Galvanized Fasteners
Standard:ASME/ANSI B18.2.1, IFI 149
DIN 931, DIN 933, DIN 960, DIN 961, ISO4014, ISO 4017
Size:1/4″ – 3″, M1.6 – M42
MaterialCarbon Steel
GR.2: Q195, Q235
GR.5: 35K,45K,40Cr
GR.8: 40Cr,35CrMo,42CrMo
Stainless Steel
SS304, SS316, SS410
Grade:SAE J429 Gr 2,5,8
ASTM A307 Gr. A
DIN 931/933/960/961 Class 4.8,5.8,6.8,8.8,10.9,12.9
ISO 4014/4017 Class 4.8,5.8,6.8,8.8,10.9,12.9
SS304, SS316, , SS410
Thread:UNC, UNF, M
Finish:Plain, Zinc Plated (Clear/Blue/Yellow/Black), Black Oxide, Nickel, Hot Dip Galvanized,
Mechanical Galvanized, Geomet, Zinc-Nickel Alloy
Package:1. Bulk in 25Kgs Carton Box, + 48 CTN wooden solid Pallet
2. Bulk in 25Kgs Carton Box, + 36 CTN wooden solid Pallet
3. According to customers demand ( Customized Label & Carton Box )
Parameters Of Hot Sale Galvanized Fasteners
ElementProduct Analysis %
Carbon SteelCarbon Boron SteelAlloy SteelAlloy Boron Steel
Carbon0.28 – 0.550.28 – 0.550.28 – 0.550.28 – 0.55
Manganese0.57 min0.57 min0.57 min0.57 min
Phosphorus0.048 max0.048 max0.040 max0.040 max
Sulfur0.058 max0.058 max0.045 max0.045 max
Silicon0.13 – 0.320.08 – 0.320.13 – 0.370.13 – 0.37
Boron0.0005 – 0.0030.0005 – 0.003
Nominal Diameter, mmTensile Strength, min, MpaYield Strength, min, MpaElongation in 4D, min, %Reduction in Area,
min, %
M12 to M368306601435
Applications Of Hot Sale Galvanized Fasteners
Features of Hot Sale Galvanized Fasteners

The zinc coating provides a protective barrier that helps prevent rust and corrosion, extending the life of the fastener and the materials it’s used with.

Galvanized fasteners are more durable than untreated fasteners, making them suitable for outdoor and high-moisture environments.

Galvanized fasteners are relatively inexpensive compared to other corrosion-resistant coatings, making them a cost-effective choice for many applications.

Galvanized fasteners are easy to process and install, making them suitable for a variety of application scenarios.

Gnee Group’s galvanized fasteners are suitable for various engineering projects such as buildings, bridges, ships, etc., providing customers with reliable solutions.

Why Choose Gnee galvanized steel Product?

If you want to find a trustable galvanized steel sheet/coil/tube/pipe/rod/profiles manufacturer, Gnee will be your best choice. 20 years of experience galvanized steel products manufacturer, certified by CE, ISO, SGS and ASTM, EN. We strictly control the quality of our galvanized steel products, using high-quality raw materials and advanced production processes to ensure that our products meet international standards and customers’ requirements.

In addition, our galvanized steel products have been successfully exported to more than 60 countries such as Singapore, Vietnam, Malaysia, Indonesia, Pakistan, UAE, and South Korea, etc. Many regular customers visit our company and factory and make multiple orders.

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What Services Does Gnee Provide?

Gnee can provide the following measurement services for galvanized steel product:

Coating Thickness: Measurement of the thickness of the zinc coating on the galvanized steel surface. This is crucial for ensuring that the steel has an adequate protective layer.

Dimensions: Checking and documenting the dimensions of the galvanized steel, including length, width, and thickness of the steel itself.

Weight: Determining the weight of the galvanized steel, which may include both the steel and the zinc coating. This is often measured in pounds or kilograms.

Surface Inspection: Examining the surface quality of the galvanized steel for any defects, imperfections, or irregularities.

Adherence to Standards: Verifying whether the galvanized steel meets specific industry or international standards for quality and performance.

Corrosion Resistance Testing: Assessing the corrosion resistance of the galvanized steel, which is a key property of the zinc coating.

Ask Measurement service

Gnee can customize the size and shape of galvanized steel products for your project according to specific project needs. The custom design of the galvanized steel product is carried out by a professional engineer and design team. Based on the requirements and constraints of the project, they will use calculation and simulation tools, combined with experience and technical knowledge, to optimize the galvanized steel products design to meet the specific needs of your engineering.

● According to the strength requirements of structural design, adjust the thickness, width, and length of galvanized steel product.
● The shape of the galvanized steel product can be designed according to the characteristics of the project.
● If you consider the convenience of installation and maintenance, we can also add openings and passages for easy access and operation in the design for areas that require frequent maintenance.

Ask Customized Services

Purchasing Gnee galvanized steel products can provide the following deep processing services. We can customize according to the specific needs of customers to meet the requirements.

Precision Cutting Service: Galvanized steel products can be custom cut to obtain the desired shape and size according to the needs of customers. For example, flame cutting, plasma cutting, laser cutting, etc., can cut galvanized steel sheet/coil/tube into required blocks, special-shaped parts.
Bending and forming: Galvanized steel products are bent and formed by stress application and appropriate processes to obtain the desired shape.
Welding service: Welding services for joining multiple pieces of galvanized steel, creating complex structures.
Punching and Perforation: Punching or perforating services for creating holes, slots, or other patterns in the galvanized steel. Meet specific assembly requirements.
Surface treatment: Additional coating or finishing processes to enhance the aesthetics or performance of the galvanized steel.

Ask Deep Processing Services

Gnee galvanized steel products can provide the following testing services through third-party testing agencies. These third-party testing services can provide independent, objective verification that galvanized steel products comply with relevant standards and regulations.

Coating Thickness Measurement: Verification of the thickness of the zinc coating on the galvanized steel surface.
Material Chemical Composition Analysis: Through chemical composition analysis, determine whether the composition of the galvanized steel products meets the standard requirements.
Mechanical Performance Test: Mechanical performance test includes tensile test, impact test, bending test, etc., which are used to determine whether the mechanical properties such as strength, toughness and ductility of products meet the specified requirements.
Corrosion Performance Test: Through the corrosion performance test, evaluate the corrosion resistance of galvanized steel products, including salt spray corrosion resistance, chemical corrosion resistance, etc.
Hardness Test: Hardness test is used to measure the hardness of galvanized steel products, and its strength and wear resistance can be evaluated according to the hardness value.
Adherence to Standards: Inspection to confirm that the galvanized steel meets specific industry or international standards for quality and performance.
Surface Inspection: Examination of the surface quality to identify any defects, imperfections, or irregularities.
Dimensional Inspection: Verification of dimensions to ensure that the galvanized steel meets the specified size requirements.

Ask Deep Processing Services

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