S-97715A434 4-40 x 1" Brass Button Head Hex-Drive Screws
Brass Button Head Hex-Drive 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
- Superior corrosion resistance from high-quality brass material, ideal for humid or chemically exposed industrial environments.
- Exceptional thread reliability with Class 3A fit, ensuring precise, vibration-resistant fastening in critical assemblies.
- High mechanical strength offering 50,000 psi tensile strength and Rockwell B55 hardness for durable, long-lasting connections.
- Easy installation and removal facilitated by the 1/16" hex drive, allowing secure tool engagement without slippage.
- Broad compatibility with 4-40 UNC coarse threads, suitable for a wide range of standard components and materials.
- Full threading along the 1" length provides maximum grip and adjustability in various material thicknesses.
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries.
Professional Applications & Engineering Value
These 4-40 UNC brass rounded head screws are engineered to address common challenges in precision assembly, such as corrosion-induced failure and thread stripping. The brass construction naturally resists rust and galvanic corrosion, making them ideal for electrical enclosures, marine equipment, and plumbing systems. With a Class 3A thread fit and coarse UNC threading, they ensure quick installation and high clamping force in soft materials or where vibration is a concern. The button head style and hex drive design allow for flush mounting and reliable torque application, reducing assembly time and improving maintenance access in confined spaces. These screws deliver consistent performance in industrial applications requiring high-strength, corrosion-resistant fastening solutions.
Specification Summary & Compliance
This product adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. It is manufactured in the inch system with a 1" length and fully threaded design. Compliance includes RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) conformity, ensuring environmental and safety standards are met for industrial use.
