S-91259A469 10-24 ASME B18.3, ASTM A574 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 Tensile Strength – Withstands up to 140,000 psi, ensuring reliable performance in high-stress industrial applications.
- Precision Thread Engagement – Class 3A thread fit provides tighter tolerances for secure, vibration-resistant fastening in machinery.
- Corrosion-Resistant Black Oxide Finish – Extends service life by protecting against rust and wear in harsh environments.
- Knurled Socket Head Design – Enhances grip and prevents slipping during installation with a standard hex drive.
- Accurate Shoulder Diameter Control – Tight tolerance of -0.004" to -0.002" ensures precise alignment in assemblies.
- High Hardness Rating – Rockwell C32 hardness offers superior durability and resistance to deformation.
- Broad Compliance – Meets ASME B18.3, RoHS 3, and REACH standards for quality and environmental safety.
Professional Applications & Engineering Value
This 10-24 UNC shoulder screw is engineered from alloy steel to address critical needs in precision machinery, automation systems, and heavy-duty equipment. The Class 3A thread fit and coarse UNC threading ensure rapid, secure assembly with minimal risk of loosening under vibration, while the black oxide finish provides essential corrosion resistance for extended use in humid or abrasive conditions. The precisely machined shoulder, with diameter tolerances as tight as -0.004", allows for exact component positioning in rotating assemblies or bearing mounts, reducing wear and maintenance downtime. Ideal for applications requiring reliable thread engagement and dimensional stability, this screw supports efficient production and long-term operational integrity.
Specification Summary & Compliance
The screw features a 10-24 UNC thread with Class 3A fit for high precision, and shoulder diameter and length tolerances of -0.004" to -0.002" and -0.005" to 0.005", respectively. Manufactured in accordance with ASME B18.3 and ASTM A574 specifications, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material quality.
