S-98625A960 1/4"-80 Thumb Screws

Key Features & Benefits at a Glance

• Superior thread retention in plastic components through precision press fit installation that eliminates the need for additional adhesives
• Exceptional 50,000 psi tensile strength ensures reliable performance under high-stress applications
• Class 3B thread fit precision provides tighter tolerances for secure fastening in plastic materials
• Ultra fine 1/4"-80 UNS thread spacing delivers maximum thread engagement in limited space applications
• Corrosion-resistant brass construction maintains long-term durability in various industrial environments
• RoHS 3 compliance with exemption meets environmental regulations while maintaining material performance
• Optimized 7/16" installed length ensures proper embedment depth for maximum holding power in plastic

Professional Applications & Engineering Value

This 1/4"-80 ultra fine thread brass press fit insert addresses critical challenges in plastic component assembly where traditional threading methods fail. The Class 3B thread fit provides exceptional precision that prevents stripping in softer plastic materials, while the press fit installation creates permanent threads without thermal damage common with ultrasonic installation. Engineered specifically for plastic applications requiring superior thread retention, these inserts distribute load forces evenly through the 0.423" body length, preventing material deformation around the 5/16" maximum hole diameter. The combination of brass material and ultra fine threading makes these inserts ideal for electronics enclosures, medical devices, and automotive plastic components where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

This insert features Class 3B thread fit per UNS standards with right-hand thread direction and ultra fine thread spacing. Critical dimensions include 7/16" installed length, 0.423" body length, and 0.352" flange diameter for precise installation in materials with 0.423" minimum thickness. Manufactured to exacting standards for use with 5/16" drill bit size and 5/16" maximum hole diameter. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(c) for lead in copper alloy, ensuring environmental regulation adherence while maintaining optimal material performance characteristics.