S-95966A658 1/4"-28 x 1/2" Captive Panel Screws
Captive Panel Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
- Precise, secure fastening thanks to Class 3A thread fit, minimizing the risk of loosening under vibration and load.
- High tensile strength of 70,000 psi provides exceptional load-bearing capacity for demanding panel applications.
- Enhanced grip and tool engagement from the knurled socket head and 3/16" hex drive, allowing for easy installation even in tight spaces.
- Optimized panel retention with the partially threaded design, preventing over-insertion and ensuring consistent alignment.
- Fine UNF thread (1/4"-28) offers improved clamping force and resistance to vibrational loosening compared to coarse threads.
- Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards for industrial components.
Professional Applications & Engineering Value
This captive panel screw is engineered to address common challenges in industrial assembly, such as vibration-induced loosening and corrosion. The 18-8 stainless steel material provides excellent resistance to rust and oxidation, making it ideal for use in electronics enclosures, machinery panels, and outdoor equipment. The knurled socket head and hex drive design facilitate quick and secure installation with standard tools, reducing assembly time. The partially threaded shank ensures that the screw remains captive in the panel, preventing fallout during maintenance or transport. With a fine UNF thread and Class 3A fit, it delivers superior holding power in high-stress applications, enhancing the durability and reliability of your products.
Specification Summary & Compliance
This screw features a 1/4"-28 UNF fine thread with Class 3A precision tolerance for tight, secure fits. It is manufactured from 18-8 stainless steel and includes a partially threaded design with a thread length of 1/4". The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial use.