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Flange Washer Bolt
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Flange Washer Bolt

Flange Washer Bolts are hex head bolts with an integrated flange base that distributes load and prevents damage to surfaces. They are manufactured to ASTM, DIN, and ISO standards in carbon steel, stainless steel, alloy steel, or brass. The built-in washer reduces assembly time and ensures secure fastening without the need for separate washers. Available in serrated and non-serrated types with various coatings, they provide strength, corrosion resistance, and vibration resistance. They are widely used in automotive, machinery, construction, furniture, and general engineering applications.

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Description

Premium Quality Flange Washer Bolt Supplier in Dubai, UAE

Unifastener Industries LLC is a reliable supplier and manufacturer of premium-quality Flange Washer Bolts in Dubai, UAE. The company specializes in industrial fastening solutions designed for automotive, machinery, engineering, fabrication, construction, and heavy-duty industrial applications. Flange Washer Bolts are specially designed fasteners featuring an integrated washer-like flange under the bolt head. This flange helps distribute load evenly, reduces surface damage, and provides enhanced fastening stability without the need for a separate washer. Manufactured using premium-grade materials and advanced production standards, Flange Washer Bolts provide excellent strength, corrosion resistance, durability, and reliable fastening performance in demanding industrial environments.


Standards:
– ASTM A307 (carbon steel bolts – general purpose)
– ASTM A325 / A490 (structural bolts – heavy-duty applications)
– ASTM F568M (mechanical properties of carbon/alloy steel fasteners)
– DIN 6921 (hexagon flange bolts)
– ISO 4162 (hex flange bolts with washer face)

Grades:
– Carbon steel (Grade 4.6, 5.6, 8.8, 10.9, 12.9)
– Stainless steel A2 / A4 (AISI 304 / 316 for corrosion resistance)
– Alloy steel (quenched & tempered for high-strength applications)

Material Options:
– Carbon steel (plain, zinc plated, hot-dip galvanized, black oxide)
– Stainless steel (natural polished or brushed finish)
– Brass (decorative/light-duty applications)

Size Range:
– Diameter: M6 to M24 (¼” to 1″)
– Length: 12mm to 200mm
– Thread types: metric (DIN/ISO) and UNC/UNF (ASTM/ANSI)

Types:
– Standard hex flange washer bolt (DIN 6921)
– Serrated hex flange bolt (for anti-slip applications)
– Non-serrated smooth flange bolt
– Stainless steel flange bolt

Properties:
– Integrated flange acts as a washer, distributing load over a larger area
– Reduces need for separate washer, speeding up assembly
– Serrated type provides anti-loosening function under vibration
– Available in both fine and coarse thread options

Coating Options:
– Zinc electroplated (clear, yellow, or black)
– Hot-dip galvanized (ASTM A153 / DIN EN ISO 1461)
– Black oxide finish
– Nickel or chrome plated
– Stainless steel natural finish

Add-ons:
– Can be supplied with matching nuts (hex, flange, or lock type)
– Available in contractor bulk packs or retail hardware kits
– Certification/test reports (mechanical & coating) available on request

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