Button Head Cap Screws

What is Button Head Cap Screws?

Button head cap screws are a type of fastener that features a cylindrical head with a low-profile dome-shaped top and a flat bearing surface underneath. The head is wider and flatter than the heads of other types of screws, such as pan head or round head screws, which makes button head cap screws ideal for applications where a low-profile head is needed, such as in furniture assembly or electronics.

Button head cap screws are typically made from materials such as steel, stainless steel, or titanium, and are available in a range of sizes and thread types to suit various applications. They can be installed using a hex key or Allen wrench, and are commonly used in conjunction with threaded inserts or tapped holes.

Button Head Cap Screws Specifications

Button head cap screws are fasteners that have a rounded, low-profile head with a flat top surface and a cylindrical shank. These screws are commonly used in applications where a low profile is desirable, such as in electronic devices, machinery, and furniture.

The specification for button head cap screws typically includes the following information:

1. Thread size: This refers to the diameter of the screw's shank and the pitch of the threads. Common thread sizes for button head cap screws include M3, M4, M5, and M6.

2. Length: This refers to the overall length of the screw, including the head. Button head cap screws are available in a range of lengths, typically measured in millimeters.

3. Material: Button head cap screws can be made from a variety of materials, including steel, stainless steel, and aluminum. The material chosen will depend on the specific application and the desired properties of the screw.

4. Finish: The finish of the screw can be important for aesthetics and corrosion resistance. Common finishes include zinc plating, black oxide, and plain (uncoated) finish.

5. Strength class: This refers to the strength of the screw and is typically expressed using a numerical grade or class. Common strength classes for button head cap screws include 8.8, 10.9, and 12.9.

6. Drive type: Button head cap screws can be driven using a variety of tools, including hex keys (Allen wrenches), torx drivers, and slotted or Phillips screwdrivers.

Button Head Screw Sizes

•  #00 - 4"
•  M1.2 - M100

•  DIN 7380 / ISO 7380

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