The 1/4-28 x 3/4 size serves shaft, hub, collar, and adjustment assemblies that need an internal hex socket set screw in 18-8 stainless steel. Cone point versions use a cone tip that can indent the mating shaft for strong axial holding in fixed settings, especially when a prepared dimple is part of the design.
Common application reviews include hubs, pulleys, and couplings. Internal hex drive access is useful in collars, hubs, knobs, and compact mechanisms where a wrench must enter from the end of the screw rather than around an external head.
18-8 stainless steel is an 18% chromium and 8% nickel austenitic stainless material referenced to ASTM F880, used for general atmosphere, moisture exposure, and clean appearance. Cold Headers has supplied specialty socket fasteners since 1962 and supports exact-size sourcing for hard-to-find socket products.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
