S-90311A144 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 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
- Permanent anti-loosening protection through nylon patch thread locker that maintains integrity from -50° to 250°F
- Precision alignment and secure positioning with Class 3A thread fit ensuring tight tolerances and reduced vibration failures
- Enhanced grip and tool engagement from the knurled socket head design, preventing slippage during installation
- High mechanical strength delivering 70,000 psi tensile strength and 35,000 psi shear resistance for demanding applications
- Industry-standard compliance meeting ASME B18.3 specifications with RoHS 3 and REACH environmental regulations
- Optimized shoulder design providing consistent bearing surfaces and precise component spacing in assemblies
Professional Applications & Engineering Value
Engineered for precision mechanical assemblies, this 10-24 UNC shoulder screw solves critical alignment and vibration challenges in industrial equipment. The 316 stainless steel material provides exceptional corrosion resistance for marine, chemical processing, and food manufacturing applications where environmental factors degrade ordinary fasteners. The permanent nylon patch thread locker ensures maintained clamp force under thermal cycling and dynamic loads, eliminating the need for secondary locking mechanisms. With its knurled socket head and precise Class 3A thread fit, this shoulder screw delivers reliable performance in rotating machinery, precision instruments, and automated systems where vibration resistance and positional accuracy are paramount.
Specification Summary & Compliance
This shoulder screw features precision Class 3A thread fit with UNC coarse threading and meets ASME B18.3 manufacturing specifications. The shoulder diameter maintains tight tolerances of -0.004" to -0.002" with shoulder length tolerance of ±0.005". Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for regulated industries and international markets.
