Alloy steel socket shoulder screws, commonly known as stripper bolts, with nylon insert combine a precision-machined shoulder with a factory-installed nylon locking element that provides prevailing torque during installation. The smooth shoulder serves as a bearing surface, guide, pivot, or spacer for moving components, while the threaded portion secures the assembly and the nylon insert helps resist thread loosening caused by vibration, repeated motion, and dynamic loading.
These fasteners are widely used in dies, tooling, fixtures, molds, automation equipment, robotics, conveyor systems, indexing mechanisms, rollers, guide assemblies, cams, linkages, packaging machinery, and OEM equipment where accurate positioning and controlled component movement are required. The internal hex drive allows installation in confined spaces while maintaining a compact assembly and providing convenient serviceability.
Manufactured from alloy steel, these socket shoulder screws are intended for demanding industrial mechanical applications. Proper fastener selection should consider shoulder diameter, shoulder length, thread size, threaded length, bearing requirements, mating-component tolerances, installation access, and operating conditions. The nylon insert provides prevailing torque but should not be considered a substitute for proper joint design or installation practices.
Cold Headers supplies alloy steel socket shoulder screws (stripper bolts) with nylon insert in a broad range of shoulder diameters, shoulder lengths, and thread sizes, including uncommon and difficult-to-source configurations. Individual product pages provide verified shoulder dimensions, thread specifications, head dimensions, hex socket size, and additional engineering information to support accurate product selection.
Begin by confirming the required shoulder diameter, shoulder length, and thread size. Review bearing requirements, mating-component tolerances, installation clearance, operating conditions, and the desired level of prevailing torque before selecting a fastener. Final selection should reflect the functional and mechanical requirements of the assembly.
Cold Headers Inc. has supplied specialty industrial socket fasteners since 1962. Our catalog helps engineers, distributors, maintenance teams, and purchasing professionals locate exact shoulder dimensions, uncommon sizes, and difficult-to-find socket shoulder screws (stripper bolts) with nylon insert without unsupported inventory claims.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
