S-99926A159 3/8"-16 x 2" 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, ideal for harsh environments and extended service life.
- High-strength performance offering 70,000 psi tensile strength and Rockwell B70 hardness for demanding industrial applications.
- Precise Class 3A thread fit ensures reliable, vibration-resistant fastening with minimal risk of loosening.
- Efficient installation with a 7/32" hex drive and undercut flat head design for flush mounting and reduced cam-out.
- Optimized for coarse threading (UNC) providing quicker assembly and better performance in softer materials.
- Versatile partial threading allows for secure clamping over a 1.8" minimum thread length on a 2" screw.
- Compliant with RoHS 3 and REACH standards, ensuring environmental safety and regulatory adherence for global supply chains.
Professional Applications & Engineering Value
Engineered for industrial fastening where reliability is non-negotiable, this 3/8"-16 UNC Flat Head Screw addresses common challenges like material fatigue and environmental degradation. The 18-8 Stainless Steel construction, enhanced by a passivated finish, provides exceptional resistance to rust and chemicals, making it suitable for machinery, marine equipment, and outdoor structures. Its Class 3A thread and coarse UNC threading deliver superior grip in metals and composites, reducing the risk of strip-out under high vibration. The undercut flat head with a 100° countersink angle ensures a smooth, flush finish, preventing snagging and improving aesthetics in visible applications. With partial threading, it offers controlled clamping force, ideal for assemblies requiring precise joint integrity without over-tightening.
Specification Summary & Compliance
This screw features a 3/8"-16 UNC coarse thread with a Class 3A fit for high precision, a 2" length, and partial threading with a minimum thread length of 1.8". It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.
