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Button Head Screw with Washer (Button Head Screw w/ Washer)
product description
A fastener with a round button head and built‑in washer, used for stable surface fastening.
Product Features
- Large head contact area, even pressure distribution
- Built‑in washer prevents damage and improves sealing
- Smooth appearance, easy installation
- Good anti‑loosening performance
Technical Parameters
Button Head Screw with Washer (Button Head Screw w/ Washer), also known as flange bolts, are designed to provide a larger bearing surface without the need for a separate washer. These fasteners are commonly made from stainless steel, offering excellent corrosion resistance and durability in demanding environments. The integrated flange or wide washer head distributes the load more evenly across the surface, reducing the risk of damage to the material being fastened. Button head socket cap screws with a built-in flange are ideal for applications requiring a clean appearance, strong clamping force, and enhanced stability. Their large bearing surface makes them especially useful in sheet metal, automotive, and machinery assemblies.
1.Drive: Hex socket, Phillips, Torx
2.Material: Carbon steel, stainless steel
3.Surface: Zinc plating, black oxide
4.Thread specification: M2–M10
5.Strength grade: 4.8, 8.8, 10.9