S-91264A244 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
- High tensile strength of 140,000 psi ensures reliable performance under heavy loads and reduces the risk of fastener failure in demanding applications.
- Permanent nylon pellet thread locking provides consistent vibration resistance from -50° to 250°F, maintaining assembly integrity without frequent retightening.
- Class 3A thread fit with UNC coarse threads offers precise, easy engagement and superior resistance to loosening in high-vibration environments.
- Black oxide finish on alloy steel enhances corrosion resistance and durability, extending service life in harsh industrial conditions.
- Knurled socket head with hex drive allows for secure tool grip and efficient installation, minimizing slippage and assembly time.
- ASME B18.3 compliance and RoHS/REACH adherence guarantees consistent quality, safety, and environmental responsibility for global supply chains.
- Precision shoulder diameter and length tolerances ensure accurate alignment and smooth rotation in machinery and pivot applications.
Professional Applications & Engineering Value
This 10-24 UNC shoulder screw is engineered to address critical challenges in industrial assemblies, such as misalignment and vibration-induced loosening. Made from alloy steel with a black oxide finish, it resists wear and corrosion in environments like automotive fixtures, conveyor systems, and robotic arms. The coarse UNC threads and Class 3A fit provide quick, secure fastening, while the integrated nylon pellet thread locker maintains clamp force without additional adhesives. Ideal for pivots, spacers, and rotating components, this screw ensures long-term reliability, reducing maintenance downtime and enhancing operational efficiency in high-tensile applications.
Specification Summary & Compliance
This shoulder screw features a 10-24 UNC thread size with Class 3A thread fit for precise tolerance, a shoulder diameter of 1/4" (tolerance: -0.004" to -0.002"), and shoulder length of 5/8" (tolerance: -0.005" to 0.005"). It complies with ASME B18.3 manufacturing standards and is verified to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and consistent performance.
