5/8 x 2 1/4 Alloy Steel Socket Head Shoulder Screw (Stripper Bolt) with Nylon Insert provides a shoulder-bearing surface for guided components and a nylon insert for added thread retention. The shoulder provides the controlled interface, the 1/2-13 threaded end retains the part, and the socket head keeps installation access available from the top side. That nylon insert helps the screw resist backing out during cyclic shock, vibration, or press operation without implying permanent locking.
For mold components, tooling inserts, plate retainers, and guided-motion rebuilds, the shoulder can act as the controlled surface while the nylon insert helps resist backing out under cyclic motion. Thread length is nominal, so review the drawing or service record when replacing an existing die component.
Cold Headers assists with specialty socket products, replacement fasteners, and nylon-insert shoulder screw requirements. Confirm the working shoulder length, tapped-hole depth, hex key clearance, and nylon insert position during replacement sourcing.
Technical Highlights
- Shoulder Diameter: 5/8 in. nominal; 0.623 max / 0.621 min
- Shoulder Length: 2 1/4 in.
- Thread Size and Nominal Thread Length: 1/2-13 x 3/4 in.
- Head Diameter: 0.875 max / 0.853 min
- Head Height: 0.375 max / 0.365 min
- Hex Key Size: 5/16 in.
- Material: Heat-Treated Alloy Steel
- Locking Feature: Nylon insert in threaded end, providing prevailing torque
- Nylon Insert Diameter (P): 5/32 in.
- Nylon Insert Location (N): 1/4 in. (+/-1/2 pitch)
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
