W.M. Berg manufactures precision thumb nuts. Thumb nuts are used in applications where a fastener needs to be adjusted and secured to a finger tight degree. W.M. Berg clearly forms precise knurls to help lock the parts in place. Common applications for thumb nuts are panel mounts, home hardware, tension adjustment hardware and other electrical applications. W.M. Berg uses the highest quality 303 stainless steel to manufacture our precision thumb nuts and ensures there are no thickness variations or burrs. W.M. Berg precision thumb nuts are all of the knurled style and come in a variety of tap sizes and lengths to fit your individual needs. W.M. Berg will also custom engineer thumb nuts for your applications if you contact our expert engineers and technicians with your specifications.