S-90298A218 10-32 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 and passivated finish for long-lasting performance in harsh environments
- Precise alignment and secure positioning thanks to the 1/2" shoulder with tight diameter tolerance (-0.001" to 0.001")
- High-strength reliability with 70,000 psi tensile strength and Rockwell B55 hardness for demanding mechanical applications
- Accurate and secure fastening ensured by Class 3A thread fit and 10-32 UNF fine threads
- Easy installation and removal with hex socket drive and knurled head for improved grip
- Compliance with environmental regulations including RoHS 3 and REACH for safe use in regulated industries
- Versatile right-hand threading compatible with standard UNF components for broad application use
Professional Applications & Engineering Value
This stainless steel shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material combined with a passivated finish provides excellent corrosion resistance, making it ideal for machinery, automotive, and electronic equipment exposed to moisture or chemicals. The 1/2" shoulder length and tight diameter tolerance ensure precise component positioning, reducing wear and misalignment in rotating parts or pivoting mechanisms. With a Class 3A thread fit and 10-32 UNF fine threads, it offers secure fastening in high-vibration environments, while the socket head with hex drive allows for efficient installation in confined spaces. These features make it a reliable choice for applications requiring high tensile strength and dimensional stability.
Specification Summary & Compliance
This shoulder screw adheres to UNF thread standards with a Class 3A fit for precise thread engagement. Dimensions include a shoulder diameter of 1/4" (tolerance: -0.001" to 0.001") and shoulder length of 1/2" (tolerance: -0.005" to 0.005"). It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and suitability for industrial use.