S-97768A279 10-24 ASME B18.3 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
- Superior corrosion resistance with 18-8 stainless steel construction and black oxide finish, ideal for harsh industrial environments
- Precise component alignment ensured by the 1/4" shoulder diameter with tight tolerance control for reduced assembly play
- High load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Secure, non-slip installation featuring a knurled socket head with hex drive for reliable torque transmission
- Consistent thread engagement through Class 3A thread fit and UNC coarse threading for vibration resistance
- Extended service life supported by Rockwell B55 hardness and compliance with ASME B18.3, RoHS 3, and REACH standards
- Versatile 3" shoulder length accommodates various material thicknesses in assemblies requiring precise spacing
Professional Applications & Engineering Value
This 10-24 UNC shoulder screw is engineered to address critical alignment and durability challenges in precision machinery, automation systems, and heavy-duty equipment. The 18-8 stainless steel core, enhanced with a black oxide finish, provides excellent resistance to corrosion and wear, reducing maintenance frequency in humid or chemically exposed settings. The 3" shoulder length and 1/4" shoulder diameter with controlled tolerances ensure accurate component positioning, minimizing misalignment and eccentric loads that can lead to premature failure. Combined with a Class 3A thread fit and coarse UNC threads, it offers reliable fastening under dynamic stresses, making it ideal for rotating assemblies, pivoting joints, and structural frames where high tensile strength and shear resistance are paramount.
Specification Summary & Compliance
This shoulder screw adheres to Class 3A thread fit and UNC thread standards for precision threading. Shoulder diameter tolerance is maintained between -0.004" to -0.002", while shoulder length tolerance is controlled from -0.005" to 0.005" to ensure consistent performance. Manufactured in compliance with ASME B18.3 specifications, it is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety regulations for industrial use.
