S-91249A344 10-24 x 1/4" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh environments and extended service life.
• High tensile strength of 70,000 psi ensures reliable, heavy-duty fastening that withstands significant mechanical stress.
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation during installation and use.
• Full threading design offers maximum grip and uniform clamping force along the entire 1/4" length for secure assemblies.
• Class 2A thread fit with UNC coarse threads enables quick and easy installation, reducing assembly time and effort.
• No. 2 Phillips drive and rounded pan head combine for straightforward driving with a standard screwdriver and a low-profile, finished appearance.
• Compliance with major industry and environmental standards guarantees product reliability and regulatory acceptance for global supply chains.

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 10-24 UNC screws address critical challenges in assembly and maintenance. The Black-Oxide 18-8 Stainless Steel construction provides exceptional resistance to rust and oxidation, making them suitable for outdoor equipment, marine components, and chemical processing facilities where moisture and corrosive agents are prevalent. The coarse thread design ensures rapid engagement and reduced cross-threading risks in metals and plastics, while the fully threaded shank distributes load evenly to prevent joint failure. With a rounded pan head and Phillips drive, these screws offer a secure, flush fit that is easy to install in confined spaces, enhancing efficiency in electronics enclosures, machinery panels, and automotive assemblies. Their high tensile strength and hardness ensure long-term performance under vibration and thermal cycling, minimizing downtime and maintenance costs.

Specification Summary & Compliance

This screw adheres to precise dimensional standards with a Class 2A thread fit and UNC coarse thread specifications, ensuring consistent performance and interchangeability. It is manufactured in compliance with ASME B18.6.3 for mechanical and dimensional requirements. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming the absence of hazardous substances and alignment with environmental health regulations.