S-91770A238 10-24 x 1/4" ASME B18.6.3 Stainless Steel Truss Head Phillips Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with Passivated 18-8 Stainless Steel construction, ensuring long-term reliability in harsh environments.
• Superior holding power from 70,000 psi tensile strength and Rockwell B70 hardness, reducing the risk of fastener failure under load.
• Wide bearing surface of the rounded truss head design distributes clamping force evenly, minimizing surface damage and improving joint integrity.
• Efficient installation with Phillips No. 2 drive and coarse UNC threads, allowing for quick assembly and reduced labor time.
• Precise thread fit with Class 2A tolerance, ensuring consistent engagement and vibration resistance in dynamic applications.
• Full threading along the 1/4" length provides maximum grip and adjustability, ideal for varying material thicknesses.
• Compliance with industry standards including ASME B18.6.3, RoHS 3, and REACH, guaranteeing safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these 10-24 UNC rounded truss head screws address common challenges like corrosion, vibration loosening, and assembly efficiency. The passivated 18-8 stainless steel material offers excellent resistance to moisture and chemicals, making them suitable for outdoor equipment, marine hardware, and food processing machinery where durability is critical. The coarse thread and fully threaded design enhance grip in soft materials or plastics, while the wide truss head prevents pull-through in sheet metal or composite assemblies. By integrating a Phillips No. 2 drive, these screws streamline installation in tight spaces, reducing tool slippage and improving workflow in automated or manual production lines. This combination of features ensures reliable performance in applications ranging from HVAC systems to electronic enclosures, delivering long-term cost savings through reduced maintenance and replacements.

Specification Summary & Compliance

This screw adheres to precise dimensional standards with a Class 2A thread fit for consistent assembly and UNC coarse threads per ASME B18.6.3 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency. The manufacturing process meets rigorous quality controls for tensile strength (70,000 psi) and hardness (Rockwell B70), supporting use in high-stress industrial applications.