S-94035A306 1/4"-20 MS51576-28, NASM51576 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, ideal for harsh industrial environments.
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under high stress.
- Precise alignment and secure fit due to the precisely machined shoulder (5/16" diameter, 3/4" length) with minimal tolerances.
- Easy installation and removal using a standard 5/32" hex drive socket head, ensuring efficient assembly and maintenance.
- Wide compatibility with 1/4"-20 UNC coarse threads (Class 2A fit), making it suitable for various industrial fastening applications.
- Regulatory compliance with RoHS 3 and REACH, ensuring safety and environmental standards are met for global use.
- Proven reliability by meeting the stringent MS51576-28 specification, guaranteeing consistent quality and performance.
Professional Applications & Engineering Value
This precision shoulder screw is engineered from 18-8 stainless steel with a passivated finish to combat corrosion in demanding settings like machinery, automotive assemblies, and electronic enclosures. The 1/4"-20 UNC coarse thread and Class 2A fit provide secure, vibration-resistant fastening, while the smooth socket head with a 5/32" hex drive allows for easy torque application in confined spaces. The precisely toleranced shoulder (5/16" diameter, 3/4" length) ensures accurate component alignment, reducing wear and improving operational longevity in industrial applications. With high tensile strength and compliance to MS51576-28, it delivers dependable performance where precision and durability are critical.
Specification Summary & Compliance
This shoulder screw features a 1/4"-20 UNC thread with Class 2A fit for standard coarse-thread applications, ensuring dimensional accuracy and ease of assembly. The shoulder maintains precise tolerances (diameter: -0.001" to 0", length: 0" to 0.002") for reliable fit. It conforms to MS51576-28 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), meeting environmental and safety standards for industrial use.
