Knurled Head Thumb Screws
Knurled Thumb Screws are ASME standards specific, in diameters ranging from #6-32 to 1/4" in. These fasteners are installed with your fingers and are used to hold light covers in place and other ornamental products.
Brass is an alloy made of copper and zinc. The color of brass can vary from dark to light based on the zinc content; more zinc content produces lighter brass. Brass is prized for its corrosion resistance, however it is quite soft so it is not suitable for all applications. Brass conducts electricity and is also a good conductor of heat. It is often used in pipes, weather stripping, trim, radiators, musical instruments, and firearms.