S-94361A384 5/8"-18 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional tensile strength of 140,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Precise Class 3A thread fit provides superior engagement and vibration resistance, maintaining assembly integrity in demanding environments.
- Black oxide finish offers enhanced corrosion resistance and a non-reflective surface, ideal for machinery and equipment requiring durability.
- Knurled head texture improves grip during manual installation and removal, facilitating easier maintenance without specialized tools.
- Alloy steel construction with Rockwell C32 hardness delivers excellent wear resistance and longevity, minimizing replacement needs and downtime.
- Fine UNF threads allow for tighter fastening in precision assemblies, ensuring secure connections in critical components.
- Compliance with RoHS 3 and REACH standards guarantees environmental safety and regulatory adherence, supporting sustainable manufacturing practices.
Professional Applications & Engineering Value
This 5/8"-18 UNF shoulder screw is engineered to address common industrial challenges, such as misalignment and shear stress in rotating assemblies. Made from alloy steel with a black oxide finish, it resists corrosion and wear in harsh conditions like automotive or machinery systems. The Class 3A thread fit and fine thread spacing ensure precise, vibration-resistant fastening, reducing maintenance needs. Its shoulder diameter of 3/4" and length of 1/2" provide stable pivoting and alignment in linkages, bushings, and gears, enhancing overall equipment reliability. Ideal for industrial applications requiring high strength and durability, this screw supports efficient, long-term performance.
Specification Summary & Compliance
This shoulder screw adheres to Class 3A thread fit tolerances for superior precision, with a UNF thread type and right-hand direction. Dimensions include a shoulder diameter of 3/4" (tolerance: -0.004" to -0.002") and shoulder length of 1/2" (tolerance: -0.005" to 0.005"). It complies with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel and REACH (EC 1907/2006) standards, ensuring environmental and safety regulations are met.
