18-8 Stainless Steel Shoulder Bolts (Stripper Bolts)

18-8 stainless steel shoulder bolts, commonly called stripper bolts, are precision fasteners featuring a smooth, accurately sized shoulder between the head and threaded section. The shoulder functions as a bearing surface, pivot point, guide, or spacer, allowing moving components to rotate or slide while the threaded portion secures the assembly. The internal hex drive permits installation where external wrench clearance is limited.

18-8 stainless steel is commonly selected for applications requiring general corrosion resistance in environments exposed to ordinary moisture, humidity, or routine washdown. Shoulder bolts are widely used in dies, fixtures, automation equipment, machinery, tooling, conveyor systems, guide mechanisms, pivot assemblies, rollers, cams, linkages, and other applications requiring controlled movement and accurate component positioning.

Unlike conventional cap screws, shoulder bolts are designed around the precision shoulder diameter and shoulder length rather than relying solely on the threaded section. Proper selection should consider shoulder diameter, shoulder length, thread size, threaded length, bearing requirements, mating-component tolerances, available installation access, and overall assembly design.

Cold Headers supplies 18-8 stainless steel shoulder bolts in a broad range of shoulder diameters, shoulder lengths, and thread sizes, including uncommon and difficult-to-source configurations. Individual product pages provide verified dimensional information to help engineers and purchasing professionals specify the correct fastener for demanding industrial applications.

Why Use an 18-8 Stainless Shoulder Bolt?

• Precision shoulder: Provides a smooth bearing surface for rotating or sliding components.
• Internal hex drive: Allows installation where external wrench clearance is limited.
• 18-8 stainless construction: Offers general corrosion resistance for many industrial environments.
• Accurate positioning: Commonly used for pivots, guides, rollers, cams, fixtures, and moving assemblies.
• Exact-size selection: Product pages provide verified shoulder diameter, shoulder length, thread size, and additional dimensional information where available.

Selecting the Correct Shoulder Bolt

Begin by confirming the required shoulder diameter, shoulder length, and thread size. Review the bearing surface requirements, mating-component tolerances, available installation access, and expected operating conditions before selecting a shoulder bolt. Final material selection should reflect the mechanical and environmental 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 sizes, uncommon shoulder lengths, and difficult-to-find shoulder bolts without unsupported inventory claims.

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.