3/8 x 5 Alloy Steel Socket Head Shoulder Screw (Stripper Bolt) with Nylon Insert supports serviceable machine designs that need a pivot, spacer, guide, or stop surface in one socket-head part. In stripper-bolt service, the shoulder sets motion or stand-off while the threaded end secures the assembly into the tapped member. That nylon insert helps the screw resist backing out during cyclic shock, vibration, or press operation without implying permanent locking.
Use this size for tooling plates, fixture nests, guide bushings, and repeatable locating details when the drawing calls for a bearing shoulder plus a retained threaded end. Alloy steel suits strength-focused tooling, but the part should be kept oiled or indoors when exposure is a concern. For joints torqued once and left alone, compare plain Alloy Steel Socket Head Stripper Bolts.
Cold Headers has supplied specialty socket fasteners since 1962, with practical support for hard-to-find stripper bolt sizes. Need the pellet in a non-catalog size or a different location? In-house pelletizing means we can do that. Check the shoulder fit, threaded-end engagement, head clearance, and pellet location when comparing this part to an existing screw.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
