S-90017A254 10-32 x 1 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide steel coating for extended service life in demanding environments
• Superior hand-tightening capability thanks to the rectangular thumb head design (3/4" width, 1/2" height) for tool-free operation
• Reliable thread engagement with precision Class 2A UNF fine threads ensuring consistent fit and vibration resistance
• Optimized strength-to-weight ratio from 70,000 psi tensile strength and Rockwell B84 hardness for heavy-duty applications
• Versatile partial threading (1-3/8" thread length) allowing for adjustable clamping pressure and secure fastening
• Right-hand thread direction for intuitive installation following standard industrial practices
• Compliance with global regulations including RoHS 3 and REACH for safe use in regulated industries

Professional Applications & Engineering Value

These 10-32 UNF thumb screws provide exceptional value in industrial settings where frequent adjustments and reliable fastening are critical. The black-oxide steel construction offers superior corrosion protection compared to untreated steel, making them ideal for electronics enclosures, machinery access panels, and laboratory equipment. The rectangular head design delivers maximum torque application without tools, while the Class 2A thread fit ensures precise alignment and prevents cross-threading in assembly operations. The partially threaded configuration allows for controlled clamping force distribution, particularly valuable in applications requiring repeated access such as maintenance hatches, calibration ports, and modular framing systems where vibration resistance and quick disassembly are essential.

Specification Summary & Compliance

Manufactured to inch system specifications with Class 2A thread tolerance for consistent fit. Features UNF (Unified National Fine) 10-32 thread with 0.19" diameter and fine thread spacing. Compliant with RoHS 3 (2015/863/EU) under exemption 6(a)-I and REACH (EC 1907/2006) regulations. Mechanical properties include Rockwell B84 hardness and 70,000 psi tensile strength, ensuring reliable performance in industrial fastening applications.