S-95966A531 1/4"-20 x 1 1/4" Captive Panel Screws
Captive Panel Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
- Secure panel retention through the captive design, preventing accidental loosening or loss during maintenance
- High tensile strength of 70,000 psi ensures reliable performance under significant mechanical stress
- Enhanced grip and tool engagement with the knurled hex socket head, allowing for easy installation even in tight spaces
- Precise Class 3A thread fit provides excellent engagement and vibration resistance in panel applications
- Partially threaded shank offers optimal clamping force distribution and prevents cross-threading
- Compliance with RoHS 3 and REACH ensures environmental safety and regulatory acceptance for global markets
Professional Applications & Engineering Value
This 18-8 Stainless Steel captive panel screw is engineered to address common challenges in industrial panel fastening, such as vibration-induced loosening and corrosion in demanding environments. The coarse UNC 1/4"-20 threads and Class 3A fit ensure quick assembly and reliable hold in metal or composite panels, reducing installation time and maintenance costs. The knurled hex socket head provides superior torque transmission and grip, even with gloved hands or in confined spaces. Its partial threading and captive design prevent panel misalignment and screw loss during repeated access, making it ideal for electronics enclosures, machinery guards, and aerospace panels where durability and security are critical.
Specification Summary & Compliance
This screw adheres to UNC coarse thread standards with a precise Class 3A thread fit for optimal engagement. Dimensions include a 1/4"-20 thread size, 1-1/4" length with a tolerance of -0.04" to 0", and a 3/16" hex drive. It is manufactured from 18-8 Stainless Steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets international environmental and safety standards for industrial use.
