What is the difference between button head and flange button head screws?

The flange button head variant has an integral washer-like flange beneath the dome head, providing a larger bearing surface that distributes clamping force over a wider area. This eliminates the need for a separate flat washer and is especially useful when fastening to soft materials or oversized holes.

Where can I get Unbrako button head screws in Noida?

Shri Narayan Machinery LLP in Sector 9, Noida stocks Unbrako button head and flange button head socket screws. Call +91-9811104037 for stock checks and quotations.

Unbrako

Button Head Socket Screws: Unbrako ISO 7380

Name: Button Head Socket Screws: Unbrako ISO 7380
Brand: Unbrako

Where a fastener stays visible, Unbrako button head socket screws do the job neatly: a low dome roughly 60% the height of a standard cap screw head, wide enough to spread bearing load, with a hexagon socket for proper torque. Class 10.9 alloy steel with black oxide covers M3 to M12 to ISO 7380-1, and the flange variant (ISO 7380-2) builds in a washer-like bearing surface for soft materials and oversized holes. The smooth contour has no sharp edges, which is why enclosure builders, furniture fitters, and medical equipment manufacturers pick them for panels people touch. For structural joints, step up to Class 12.9 cap screws; buttons are for light-to-medium duty where looks and low profile matter. Stocked at Sector 9, Noida; WhatsApp for price.

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Available — pickup today from Sector 9, Noida

Same-day Delhi NCR dispatch · call to confirm stock on your exact model

Property Class: 10.9Material: Alloy Steel, Quenched & TemperedFinish: Black Oxide (standard)Head Type: Low-profile dome (button head) with hexagon socket

Key Features

Low-profile dome head, reduced protrusion vs. standard socket head cap screws

Wide head diameter distributes bearing load over larger area

Hexagon socket drive for clean appearance and high torque capability

Alloy steel with black oxide finish, attractive industrial appearance

Available in standard button head and flange button head variants

Flange variant eliminates need for separate washer

Smooth dome contour, no sharp edges, safe for contact surfaces

E-Code traceability on all Unbrako fasteners

Technical Specifications

Property Class	10.9
Material	Alloy Steel, Quenched & Tempered
Finish	Black Oxide (standard)
Head Type	Low-profile dome (button head) with hexagon socket
Drive Type	Hexagon socket (Allen key)
Thread Class	6g (metric)
Size Range	M3, M4, M5, M6, M8, M10, M12
Head Height	Approximately 60% of standard socket head cap screw head height

Applications

The Button Head Socket Screws is used across a wide range of industrial applications:

Consumer and commercial equipment, visible fasteners requiring clean appearance
Electronic enclosures and control panels, low-profile, attractive mounting
Furniture and architectural fittings, decorative yet functional fastening
Medical equipment housings, smooth dome prevents snagging on clothing or tubing
Conveyor guides and machine guards, low-profile prevents interference
Aluminium extrusion assemblies, T-slot mounting with button heads
Automotive interior trim, visible fasteners on dashboard and console assemblies
Robotics and automation, end-effector covers and guard panels

Industries Served

Electronics & ElectricalMedical EquipmentAutomotiveFurniture & ArchitecturalConsumer EquipmentGeneral Engineering

Need Button Head Socket Screws? Get the Best Dealer Price

As your Unbrako dealer, Shri Narayan Machinery LLP offers competitive pricing on the full Button Head Socket Screws range. Call us for availability and your best quote.

Request Quote on WhatsApp Call +91-9811104037

C-101, Sector 9, Noida, Uttar Pradesh 201301 | Unbrako Dealer

Frequently Asked Questions: Button Head Socket Screws

Unbrako button head screws are Property Class 10.9 while standard SHCS are Class 12.9. The button head has a lower profile and smaller socket, which limits its tensile capacity. For critical structural applications, use socket head cap screws. Button heads are best for light-to-medium duty work where appearance and low profile matter.

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