S-97715A537 1/4"-28 x 5/8" 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 with brass construction, ideal for harsh environments and reducing maintenance costs
- Precise Class 3A thread fit ensures tight, reliable fastening with minimal risk of loosening in vibration-prone applications
- High tensile strength of 50,000 psi provides dependable load-bearing capacity for demanding industrial uses
- Hex drive design (5/32") allows for efficient torque application and easy installation with standard tools
- Fully threaded UNF fine thread (1/4"-28) offers maximum grip and uniform stress distribution along the entire length
- Rounded button head profile delivers a smooth, finished appearance while minimizing snagging risks
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global industry standards
Professional Applications & Engineering Value
This brass rounded button head screw is engineered to address critical challenges in precision assembly and corrosive environments. The UNF fine thread with Class 3A fit provides exceptional accuracy, reducing the likelihood of cross-threading and ensuring consistent clamping force in applications like electronics enclosures, marine equipment, and pneumatic systems. The hex drive facilitates high-torque installation without slippage, while the brass material naturally resists oxidation and galvanic corrosion, extending service life in humid or chemical-exposed settings. Its fully threaded design maximizes engagement in thin materials, offering reliable fastening where vibration resistance is paramount for operational safety and reduced downtime.
Specification Summary & Compliance
This fastener adheres to UNF fine thread standards with a precise Class 3A thread fit for superior dimensional accuracy. Key specifications include a 1/4"-28 thread size, 5/8" length, and Rockwell B55 hardness. It is manufactured in compliance with RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloys and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial use.
