S-97345A747 1/2"-13 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
- Exceptional mechanical strength delivering 70,000 psi tensile strength and 35,000 psi shear strength for heavy-duty applications
- Precise Class 3A thread fit ensures reliable engagement and vibration resistance in demanding assemblies
- Convenient installation and removal with 5/16" hex socket drive and knurled head for improved grip
- Accurate shoulder positioning with 3/4" shoulder length and tight diameter tolerances for consistent component alignment
- Industry-standard compliance meeting ASME B18.3 specifications for guaranteed interchangeability and performance
- Environmental regulation adherence with RoHS 3 and REACH compliance for safe use in regulated industries
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw delivers critical engineering solutions where precision alignment and corrosion resistance are paramount. The 1/2"-13 UNC coarse thread with Class 3A fit provides superior holding power in high-vibration environments like rotating machinery, while the precisely machined shoulder maintains accurate component positioning in assemblies. The hex socket drive and knurled head enable secure installation in confined spaces, reducing assembly time. Ideal for industrial equipment, automotive fixtures, and precision manufacturing jigs, this shoulder screw eliminates the need for separate spacers and provides reliable performance in corrosive or high-stress applications.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit and shoulder diameter tolerance of -0.004" to -0.002" for precision assembly. Thread specifications conform to 1/2"-13 UNC coarse thread standards with right-hand orientation. Full compliance with ASME B18.3 manufacturing specifications ensures dimensional consistency. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for hazardous substance restrictions.
