S-99607A246 1/4"-28 x 1 1/4" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced manual grip with knurled head texture for secure handling without tools in tight spaces
- Superior corrosion resistance from 18-8 stainless steel construction, ideal for humid or chemical environments
- High load-bearing capacity with 80,000 psi tensile strength and Rockwell B85 hardness for demanding applications
- Precise thread engagement through Class 2A UNF fine threads ensuring vibration-resistant, secure fastening
- Optimized torque transmission via flared collar design that distributes pressure evenly during tightening
- Full-length threading allows adjustable positioning and maximum contact with mating components
- Regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries
Professional Applications & Engineering Value
Engineered for industrial equipment, electronic enclosures, and precision machinery, this 18-8 stainless steel thumb screw solves common assembly challenges. The knurled head provides reliable hand-tightening capability where tool access is restricted, while the flared collar design prevents sinking into softer materials and improves torque distribution. With Class 2A UNF fine threads, it maintains consistent clamping force in high-vibration environments. The fully threaded 1¼" length offers versatile adjustment range, making it ideal for panel fastening, access covers, and frequently disassembled components where corrosion resistance and 80,000 psi tensile strength are critical for long-term performance.
Specification Summary & Compliance
This thumb screw maintains Class 2A thread fit per UNF standards with precise 1/4"-28 fine threading. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring material safety and environmental responsibility. The 18-8 stainless steel construction provides consistent mechanical properties across the 1¼" fully threaded length, with dimensional accuracy maintained through controlled production processes.
