When it comes to designing and building a product, every detail matters. From the type of fastener you choose to the shape of its head and the threading that goes with it, every decision you make affects the strength, durability, and aesthetics of your finished product.
Screws are no exception. There are a wide variety of different screw types available in the market, with each featuring its own advantages and disadvantages. For instance, some screw heads have wider load-bearing surfaces than others that help them resist loosening. Others are designed to be installed in a countersunk hole, allowing them to sit flush with the surface of their host material. And still, others have a more compact profile to allow them to be used in tight spaces where head height is limited.
A Button Head Cap Screw, or Socket Button Screw, is one such screw that offers a combination of features from various other heads. Its rounded head contains a socket to fit a wrench for turning and a button for a driver, similar to a pancake head screw or hex socket cap screw. Its lower profile makes it a good choice for applications with low clearance and its larger load-bearing surface is helpful for applications that require a high amount of clamping force.
McMaster-Carr carries Button Head Socket Cap Screws in a variety of sizes and finishes, including 304 and 316 stainless steel, black oxide, oil, mechanical zinc and zinc-bake Cr+3. They also come with an optional tamper-resistant hex drive, making them more difficult to remove without the correct tool. Button Head Cap Screw