S-92453A116 4-40 x 1 1/8" ASME B18.6.3 Brass Round Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass material, ideal for humid or demanding industrial environments.
• Reliable fastening performance with a tensile strength of 50,000 psi, ensuring secure and durable connections.
• Easy installation and removal using the standard slotted drive, compatible with common hand tools.
• Precise thread fit with Class 2A UNC coarse threads, providing smooth engagement and reduced cross-threading risk.
• Excellent durability backed by Rockwell B40 hardness, maintaining integrity under repeated use.
• Full threading along the 1-1/8" length for maximum grip and versatility in various material thicknesses.
• Compliance with major standards including ASME B18.6.3, RoHS 3, and REACH, ensuring safety and regulatory adherence.

Professional Applications & Engineering Value

Engineered for precision and longevity, this 4-40 UNC brass rounded head slotted screw addresses common industrial challenges such as corrosion and mechanical stress. The brass material offers inherent resistance to rust and oxidation, making it suitable for electrical components, marine equipment, and plumbing systems where moisture is a concern. Its coarse thread design ensures quick assembly and strong holding power in softer materials, while the slotted drive allows for straightforward manual tightening. With a fully threaded shank and Class 2A thread fit, it delivers consistent performance in applications requiring reliable, vibration-resistant fastening, from machinery assembly to consumer electronics.

Specification Summary & Compliance

This screw adheres to Class 2A thread tolerances per UNC standards, with precise dimensions including a 0.112" thread diameter and 1-1/8" length. It meets ASME B18.6.3 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.