PROFESSIONAL MANUFACTURER OF HARDWARE PRODUCTS
Jinan Meierde Industry Co., Ltd
Hex flange bolts
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Carbon Steel Hex Flange Bolt – Plain, ZP, YZP, HDG, Black
Product Overview
Our Carbon Steel Hex Flange Bolt is designed with an integrated flange that works like a built-in washer. This provides a larger bearing surface, better load distribution, and reduces the need for a separate washer during installation. Manufactured from high-quality carbon steel, it is available in multiple finishes—Plain, Zinc Plated (ZP), Yellow Zinc Plated (YZP), Hot Dip Galvanized (HDG), and Black—to meet different corrosion resistance and appearance requirements.
Key Features
Integrated hex flange design for improved load distribution
Eliminates the need for a separate washer in many applications
Hex head allows easy tightening with standard wrench or socket
Made from durable carbon steel for high strength
Available in Plain, ZP, YZP, HDG, and Black finishes
Suitable for indoor, outdoor, and heavy-duty applications
Custom sizes, grades, threads, and coatings available
Specifications
| Item | Details |
|---|---|
| Product Name | Carbon Steel Hex Flange Bolt |
| Material | Carbon Steel |
| Grade | 4.8 / 8.8 / 10.9 / 12.9, or as requested |
| Standard | DIN 6921, ISO 4162, JIS B1189, ASME B18.2.1, or customized |
| Size | M5–M24 / 1/4"–1", or customized |
| Length | 10–300 mm / 1/2"–12", or customized |
| Thread | Metric coarse/fine, UNC, UNF, BSW |
| Head Type | Hex flange head |
| Flange Type | Serrated / non-serrated |
| Drive | Hex wrench / socket |
| Finish | Plain, ZP, YZP, HDG, Black |
Finish Options
Plain – Bare steel, lightly oiled. Suitable for indoor use, welding, or painted assemblies.
ZP (Zinc Plated) – Clear/blue-white zinc coating. Good general corrosion resistance for indoor applications.
YZP (Yellow Zinc Plated) – Yellow zinc coating. Better corrosion resistance, commonly used in automotive and machinery.
HDG (Hot Dip Galvanized) – Thick zinc coating. Excellent for outdoor, marine, and heavy construction applications.
Black – Black oxide, black phosphate, or black zinc. Decorative finish with mild corrosion resistance.
Applications
Construction and structural steel
Machinery and equipment assembly
Automotive and transportation
Solar mounting systems
Fencing and guardrails
Bridges, towers, and infrastructure
Agricultural equipment
General engineering and maintenance
Product message
Jinan Western Industrial park, Jinan City, Shandong Province
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