S-92012A515 4-40 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Enhanced Durability & Corrosion Resistance: Black oxide finish provides superior protection against rust and wear in demanding industrial environments.
- High-Strength Performance: Alloy steel construction with 140,000 psi tensile strength and Rockwell C32 hardness ensures reliable load-bearing capacity and long-term integrity.
- Precise Shoulder Fit for Accurate Alignment: Tight shoulder diameter (1/8") and length (1/4") tolerances guarantee exact component positioning and reduced assembly vibration.
- Secure Hex Drive Installation: 5/64" hex socket head allows for high-torque application and prevents stripping, ensuring a firm, stable connection.
- Optimized Thread Engagement: Coarse 4-40 UNC threads with Class 2A fit enable quick assembly and consistent fastening in high-vibration applications.
- Compliance with Environmental Standards: RoHS 3 and REACH compliance ensures safe, sustainable use across global industrial sectors.
- Versatile Right-Hand Thread Design: Standard right-hand threading facilitates easy installation and compatibility with common industrial equipment.
Professional Applications & Engineering Value
This 4-40 UNC shoulder screw is engineered to address critical alignment and stability challenges in precision assemblies. The alloy steel core, combined with a black oxide finish, resists corrosion and mechanical stress, making it ideal for machinery, automotive, and electronics where high tensile strength is paramount. The precisely machined shoulder diameter and length provide a secure pivot or spacer, eliminating misalignment and reducing wear on moving parts. Its coarse thread and Class 2A fit ensure rapid, reliable fastening in high-vibration environments, streamlining production and maintenance workflows while adhering to RoHS and REACH regulations for global supply chain compatibility.
Specification Summary & Compliance
This shoulder screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent engagement. Shoulder dimensions include a 1/8" diameter (-0.001" to 0" tolerance) and 1/4" length (0" to 0.002" tolerance) for precise assembly. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory alignment for industrial use.
