S-90288A537 1/4"-20 x 1/2" Tamper-Resistant One-Way-Drive Stainless Steel Round Head Screws
Tamper-Resistant One-Way-Drive Stainless Steel Round Head 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 and passivated finish, ideal for harsh industrial environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B96 hardness for reliable, long-term performance
- Secure and precise fastening thanks to Class 2A thread fit and UNC coarse thread design, reducing cross-threading risks
- Efficient one-way drive installation for tamper-resistant applications where removal is not intended
- Full threading along the 1/2" length ensures maximum grip and load distribution across the entire fastener
- Compliance with RoHS 3 and REACH regulations guarantees environmental safety and global market acceptance
- Rounded head design provides a smooth, low-profile finish that minimizes snagging and improves safety
Professional Applications & Engineering Value
Engineered for demanding environments, these 18-8 stainless steel rounded head screws deliver reliable performance where corrosion resistance and high strength are critical. The passivated finish enhances the natural corrosion resistance of stainless steel, making these fasteners suitable for outdoor equipment, chemical processing, and marine applications. With a UNC coarse thread and Class 2A thread fit, installation is swift and secure, reducing assembly time while maintaining precision. The one-way drive style offers tamper-resistant benefits for public infrastructure, security panels, and permanent assemblies. Fully threaded along the 1/2" length, these screws ensure uniform stress distribution, preventing joint failure in high-vibration settings common in machinery and transportation industries.
Specification Summary & Compliance
This 1/4"-20 x 1/2" screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy. Manufacturing complies with material and threading specifications for industrial-grade fasteners. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for global industrial use.
