S-90298A852 5/8"-11 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 passivated finish for extended service life in harsh environments
- Precise component alignment through Class 3A thread fit and ±0.001" shoulder diameter tolerance ensuring reliable assembly
- High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Secure installation and removal with 3/8" hex drive and knurled head design for superior grip and torque transmission
- Industry-standard compatibility meeting ASME B18.3 specifications for consistent quality and interchangeability
- Environmental compliance with RoHS 3 and REACH standards for safe use across regulated industries
- Optimized shoulder design featuring 4 1/4" shoulder length with ±0.005" tolerance for precise spacing and rotational control
Professional Applications & Engineering Value
This 5/8"-11 UNC shoulder screw delivers exceptional engineering value in precision machinery and industrial equipment. The 18-8 stainless steel construction with passivated finish provides reliable corrosion resistance, while the Class 3A thread fit ensures vibration-resistant fastening in high-stress applications. The 4 1/4" shoulder length with tight tolerances enables accurate component positioning in rotating assemblies, jigs, and fixtures. The knurled head and 3/8" hex drive facilitate secure installation in confined spaces, making it ideal for manufacturing equipment, automation systems, and precision instruments where dimensional accuracy and durability are critical.
Specification Summary & Compliance
This shoulder screw features precision UNC coarse threads with Class 3A thread fit and maintains shoulder diameter tolerance of -0.001" to 0.001" with shoulder length tolerance of -0.005" to 0.005". Manufactured in compliance with ASME B18.3 standards and certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant for environmental safety and regulatory adherence.
