S-92400A440 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastic materials with tri-lobe shank design that creates strong, vibration-resistant threads without chips
• Corrosion-resistant zinc plating provides durable surface protection for extended service life in industrial environments
• Easy installation with standard tools through external hex drive design that allows high torque application without stripping
• Efficient thread forming action eliminates the need for tapping operations, reducing assembly time and labor costs
• Full threading along the entire 3/4" length ensures maximum engagement and pull-out resistance in plastic applications
• Precision compatibility with 5.5mm (0.2165") drill bits for proper hole preparation and optimal performance
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

These 1/4"-10 TRS thread forming screws are specifically engineered to address common challenges in plastic fastening applications where traditional fasteners often fail. The tri-lobe shank cross-section displaces plastic material during installation, creating permanent, high-strength threads that won't loosen under vibration or thermal cycling. Made from zinc-plated steel, these screws provide the necessary strength while the thread forming design eliminates the risk of plastic cracking common with thread-cutting alternatives. The external hex head allows for high torque installation with standard industrial tools, making them ideal for automated assembly lines in automotive, electronics, and appliance manufacturing where plastic component assembly requires reliable, repeatable fastening solutions.

Specification Summary & Compliance

These thread forming screws feature a 1/4"-10 thread configuration with Class 2A tolerance standards, ensuring precise fit and consistent performance. The TRS (Thread Rolling Screw) design follows industry-standard thread forming specifications with a tri-lobe shank profile optimized for plastic materials. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making them suitable for use in regulated industries and international markets. The zinc-plated steel construction provides corrosion resistance while maintaining the mechanical properties required for demanding plastic fastening applications.