Screw; SCM435; Hex Socket Shoulder; F3

Engineered for precision and reliability, the Screw; SCM435; Hex Socket Shoulder; F3 combines top-grade alloy steel with a purpose-built shoulder to keep moving parts perfectly aligned. The SCM435 material delivers high tensile strength after heat treatment, making this shoulder screw ideal for heavy-use fixtures, jigs, and machinery where accurate positioning matters.

Key advantages

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  High-strength SCM435 alloy steel provides excellent load-bearing performance and durability in repetitive cycles.
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  Hex Socket Shoulder design ensures secure installation with a low-profile drive and a precise, unthreaded shoulder that guides movement.
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  Defined F3 variant denotes a specific size/class in your machining spec, ensuring you pair the right shoulder dimensions with your application.
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  Predictable alignment thanks to the unthreaded shoulder surface that reduces play between components.
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  Reliable retention with a robust cross-section and thread engagement that withstands vibration in demanding environments.

Ideal use cases

This shoulder screw excels in fixtures, guide rails, pivoting arms, and positioning stages where precise location and smooth travel are critical. Use it to demarcate a stop point in automation, align tool holders, or keep rotating components centered without binding.

Installation and tips

• Before installation, verify that the hex socket size matches your Allen key to prevent rounding.
• Ensure the screw shoulders seat flush against the mating surface to maintain accurate alignment.
• Use appropriate lubricants and clean threads before assembly to facilitate smooth assembly and disassembly.
• Follow your engineering drawings for the correct F3 variant dimensions and thread engagement length.

Why choose SCM435 Hex Socket Shoulder Screw F3

Compared to general-purpose fasteners, this screw's combination of a strong SCM435 core and a precision shoulder delivers repeatable positioning, improved wear resistance, and a longer service life in fatigue-prone settings. It’s a practical choice for workshops, machine shops, and OEMs designing fixtures and automation cells where reliability matters as much as performance.

Ready to lock in precise alignment and durable performance? Add this Screw; SCM435; Hex Socket Shoulder; F3 to your cart and experience dependable geometries in every cycle.