S-91273A647 3/8"-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, ideal for harsh industrial environments
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
- Precise shoulder positioning with 3/8" diameter and tight tolerances for accurate component alignment
- Secure hex socket drive with 3/16" hex size and knurled head for non-slip installation and removal
- Fine UNF thread (3/8"-24) provides superior holding power and vibration resistance in precision assemblies
- Durable black oxide finish enhances wear resistance and provides additional corrosion protection
- Full regulatory compliance with RoHS 3 and REACH standards for global market acceptance
Professional Applications & Engineering Value
This 3/8"-24 UNF shoulder screw delivers exceptional engineering value in precision mechanical assemblies where component alignment and rotational accuracy are critical. The 18-8 stainless steel construction combined with black oxide finish provides superior corrosion resistance for demanding environments including manufacturing equipment, automation systems, and precision instruments. The knurled hex socket head ensures secure tool engagement during installation, while the precisely machined 3/8" shoulder diameter maintains accurate bearing surfaces and component positioning. With Class 2A thread fit and UNF fine threads, this shoulder screw prevents loosening under vibration and maintains consistent clamping force in high-performance applications across aerospace, automotive, and industrial machinery sectors.
Specification Summary & Compliance
This precision shoulder screw features 3/8"-24 UNF fine threads with Class 2A thread fit for consistent engagement and reliable performance. The shoulder maintains tight dimensional tolerances with diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". Manufactured from 18-8 stainless steel with Rockwell B55 hardness, it delivers 70,000 psi tensile strength and 35,000 psi shear strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications.
