S-91829A533 10-32 MS51575-17, NASM51575 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for long-term reliability in harsh environments
• Precise alignment and smooth rotation thanks to the precisely machined shoulder with ±0.002" length tolerance
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty applications
• Secure, vibration-resistant fastening achieved through Class 2A thread fit and 10-32 UNF fine threads
• Easy installation and removal with standard socket head design for efficient assembly operations
• Regulatory compliance assurance meeting MS51575-17 specifications, RoHS 3, and REACH requirements
• Consistent dimensional accuracy with controlled shoulder diameter tolerance (-0.001" to 0") for reliable performance

Professional Applications & Engineering Value

This 18-8 stainless steel shoulder screw delivers critical engineering value in precision assemblies where alignment accuracy and corrosion resistance are paramount. The passivated finish provides enhanced protection against chemical exposure and oxidation, while the 10-32 UNF fine threads with Class 2A fit ensure secure fastening in high-vibration environments. The precisely controlled shoulder diameter and length tolerances (±0.002") enable exact component positioning in machinery, automotive systems, and electronic enclosures. With 70,000 psi tensile strength, this fastener maintains structural integrity under substantial loads, making it ideal for pivoting mechanisms, rotating assemblies, and precision instruments where dimensional stability is critical.

Specification Summary & Compliance

Manufactured to exacting standards, this shoulder screw features 10-32 UNF fine threads with Class 2A thread fit for precision engagement. The shoulder maintains tight dimensional control with diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002". Compliant with MS51575-17 specifications, the fastener meets rigorous industrial requirements. Environmental compliance is assured through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) adherence, confirming the absence of restricted substances for global market acceptance.