S-94518A525 1/4"-20 x 1 1/2" QQ-P-35, MS24671-33 Stainless Steel Hex Drive Flat Head Screws
Stainless Steel Hex Drive Flat Head 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 and passivated finish for long-lasting performance in harsh environments.
- High tensile strength of 70,000 PSI ensures reliable load-bearing capacity and structural integrity in demanding applications.
- Precise Class 3A thread fit provides consistent engagement and vibration resistance for secure assemblies.
- Hex drive design allows for easy installation and high torque application without slippage.
- 82° countersink angle and flat head profile enable flush mounting for a smooth, professional finish.
- Coarse UNC threads facilitate quick assembly and disassembly, reducing labor time.
- Compliance with Fed. Spec. QQ-P-35, RoHS 3, and REACH guarantees adherence to industry and environmental standards.
Professional Applications & Engineering Value
These 1/4"-20 UNC flat head screws are engineered to address critical challenges in industrial and mechanical assemblies where corrosion resistance, strength, and precision are paramount. Constructed from 18-8 Stainless Steel with a passivated finish, they effectively combat rust and chemical exposure, making them ideal for marine, automotive, and outdoor equipment. The hex drive ensures secure fastening in tight spaces, while the partially threaded design and coarse thread spacing enhance grip and reduce the risk of loosening under vibration. With a 70,000 PSI tensile strength and Class 3A thread fit, these screws deliver dependable performance in high-stress applications, from machinery frames to structural supports, ensuring long-term reliability and reduced maintenance costs.
Specification Summary & Compliance
This product features precise UNC coarse threads with a Class 3A thread fit for accurate engagement and durability. It meets Fed. Spec. QQ-P-35 (referencing MS24671-33) for quality assurance, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability.
