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Button Cap Screw
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Window Concrete Screw
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CSK Cap Screw
CSK Cap Screw

Button Cap Screw

Button Cap Screws are socket-drive fasteners with a rounded low-profile head used for secure fastening and clean appearance. They are manufactured to ASTM, DIN, and ISO standards in alloy steel, stainless steel, carbon steel, or brass. With high tensile strength and corrosion-resistant finishes, they are suitable for structural, mechanical, and decorative uses. The internal hex drive ensures easy installation while maintaining a neat, tamper-resistant look in assemblies. They are widely used in machinery, automotive, furniture, electronics, and general engineering applications.

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Description

Premium Quality Button Cap Screw Supplier in Dubai, UAE

Unifastener Industries LLC is a reliable supplier and manufacturer of premium-quality Button Cap Screws in Dubai, UAE. The company specializes in industrial fastening solutions designed for machinery assemblies, engineering projects, automotive systems, furniture manufacturing, and heavy-duty industrial applications. Button Cap Screws, also known as Button Head Socket Cap Screws, are specially designed threaded fasteners featuring a low-profile rounded head with an internal hex socket drive. These screws provide a clean appearance, secure fastening performance, and high torque transmission while maintaining a smooth surface finish. Manufactured using high-grade materials and advanced production standards, Button Cap Screws provide excellent strength, corrosion resistance, durability, and reliable long-lasting fastening performance in demanding industrial environments.


Standards:
– ASTM A574 (alloy steel socket-head cap screws)
– ASTM F835 (alloy steel button head cap screws)
– DIN 7380 (button head socket cap screws)
– ISO 7380 (button head socket screws)
– ISO 898-1 (mechanical properties of fasteners – carbon/alloy steel)

Grades:
– Alloy steel (quenched and tempered – high strength)
– Stainless steel A2 / A4 (AISI 304 / 316 for corrosion resistance)
– Carbon steel (standard duty)
– Brass (light-duty decorative use)

Material Options:
– Alloy steel (black oxide finish)
– Carbon steel (zinc plated, HDG, or nickel plated)
– Stainless steel (polished or brushed finish)
– Brass (polished decorative applications)

Size Range:
– Diameter: M3 to M24 (1/8″ to 1″)
– Length: 6mm to 200mm
– Drive: internal hex/Allen drive

Types:
– Standard button head cap screw
– Low-profile button cap screw
– Stainless steel button cap screw
– Tamper-resistant button cap screw (pin-in-hex)

Properties:
– Rounded low-profile head provides smooth, snag-free finish
– Internal hex drive allows installation in limited spaces
– High tensile strength (especially alloy steel versions)
– Suitable for both functional and decorative applications

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

Add-ons:
– Can be supplied with matching washers and nuts
– Available in bulk contractor packs or retail kits
– Certification/test reports (mechanical and coating properties) available on request

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