S-91273A618 5/16"-24 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 corrosion resistance with 18-8 stainless steel construction and black oxide finish, ideal for harsh industrial environments
- High tensile strength of 70,000 PSI ensures reliable performance under heavy loads and mechanical stress
- Precise 1" shoulder length with tight tolerances provides accurate alignment and smooth rotation in assemblies
- Fine UNF threading (5/16"-24) with Class 2A fit delivers secure fastening and vibration resistance
- Knurled socket head with hex drive allows for easy installation and removal, even in confined spaces
- Compliance with RoHS 3 and REACH regulations guarantees safe, environmentally responsible use in global markets
- Minimum shear strength of 35,000 PSI supports durability in high-shear applications
Professional Applications & Engineering Value
This 5/16"-24 UNF shoulder screw is engineered to address critical alignment and durability challenges in industrial applications. The 18-8 stainless steel material, combined with a black oxide finish, provides superior corrosion resistance, reducing maintenance in moist or chemically aggressive settings. The 1" shoulder length with precise tolerances ensures exact component positioning, minimizing wear and misalignment in machinery, automotive, and precision equipment. The fine UNF threading and Class 2A thread fit enhance grip and vibration resistance, making it ideal for high-stress assemblies where reliability is paramount. Its socket head design with knurling facilitates quick servicing, saving time in production and maintenance cycles.
Specification Summary & Compliance
This shoulder screw features a Class 2A thread fit for consistent engagement, with a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005" to ensure dimensional accuracy. It adheres to UNF thread standards (5/16"-24) and is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting safe and sustainable industrial use.
