S-98625A970 1/4"-80 Thumb Screws

Key Features & Benefits at a Glance

• Enhanced Thread Reliability in plastic components with Class 3B ultra fine thread fit, ensuring precise engagement and reducing the risk of stripping.
• Superior Material Durability from solid brass construction, offering excellent corrosion resistance and long-term performance in demanding environments.
• Optimized Installation Efficiency with press-fit design, allowing for quick, tool-free insertion into pre-drilled 5/16" holes without additional fasteners.
• High Load-Bearing Capacity supported by 50,000 psi tensile strength, providing secure fastening in plastic assemblies under stress.
• Compliance with Environmental Standards through RoHS 3 compliance, meeting regulatory requirements for lead-free copper alloys in industrial applications.
• Precision Engineering for Thin Materials with a 0.61" minimum material thickness requirement, ideal for securing threads in slim plastic profiles.
• Right-Hand Thread Compatibility with UNS standard, ensuring seamless integration with existing inch-based fastener systems.

Professional Applications & Engineering Value

This 1/4"-80 ultra fine thread brass press fit insert is engineered to address common challenges in plastic assembly, such as thread wear and material deformation. The Class 3B precision fit and ultra fine thread spacing provide superior holding power in softer materials, preventing loosening under vibration. Made from high-strength brass, it resists galvanic corrosion when used with dissimilar metals, extending product lifespan. The press-fit installation simplifies assembly in tight spaces, reducing labor time while maintaining 50,000 psi tensile strength for critical applications in electronics enclosures, automotive trim, and consumer goods. Its RoHS 3 compliant composition ensures adherence to global environmental directives, making it a reliable choice for OEMs.

Specification Summary & Compliance

This insert features a Class 3B thread fit per UNS standards with ultra fine 1/4"-80 threading for high precision. Dimensions include a 0.61" body length, 0.352" flange diameter, and compatibility with 5/16" maximum hole diameter. It meets RoHS 3 (2015/863/EU) compliance under exemption 6(c) for lead in copper alloys, ensuring regulatory adherence. Designed for use in plastics with a minimum 0.61" material thickness, it supports right-hand thread direction and open end type for versatile applications.