S-92421A645 10-32 x 3/4" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual operation with knurled round head design for superior grip without tools
• Corrosion-resistant performance due to durable brass construction in demanding environments
• Precise thread engagement with Class 2A fit and 10-32 UNF fine threads for secure fastening
• Quick installation enabled by flared collar design that prevents over-tightening
• Full-length threading across 3/4" length provides consistent holding power
• Regulatory compliance with RoHS 3 and REACH standards for safe industrial use
• Right-hand threading ensures compatibility with standard assembly procedures

Professional Applications & Engineering Value

This brass thumb screw delivers exceptional value in applications requiring frequent adjustments or tool-free maintenance. The knurled head provides positive grip even with oily hands or gloves, while the flared collar distributes clamping pressure evenly and acts as a built-in washer. The 10-32 UNF fine threads offer superior resistance to vibration loosening compared to coarse threads, making these thumb screws ideal for precision instruments, electronic enclosures, and machinery access panels. The fully threaded 3/4" length ensures maximum engagement in varying material thicknesses, and the brass material provides excellent corrosion resistance in humid or chemical environments without galling issues common with stainless steel alternatives.

Specification Summary & Compliance

This thumb screw features Class 2A thread fit per UNF standards with 0.19" thread diameter and fine thread spacing. The 7/16" head diameter with 9/64" head height provides optimal torque application surface. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency for industrial applications.