S-99926A116 8-32 x 3/8" 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 thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
- High tensile strength of 70,000 psi ensures reliable, durable fastening under demanding mechanical loads.
- Precision Class 3A thread fit guarantees tight tolerances and secure, vibration-resistant installations.
- Partially threaded UNC coarse design allows for faster assembly and reduced risk of cross-threading in various materials.
- Undercut flat head with 100° countersink provides a flush, low-profile finish that minimizes protrusion and improves aesthetics.
- Hex drive (5/64") enables easy, high-torque installation with standard tools, reducing assembly time.
- Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards for industrial use.
Professional Applications & Engineering Value
Engineered for precision and durability, these 8-32 UNC flat head screws in 18-8 stainless steel address common industrial challenges such as corrosion, vibration loosening, and assembly efficiency. The passivated finish enhances longevity in moist or chemical-exposed settings, while the Class 3A thread fit and coarse threading ensure quick, secure fastening in metals, plastics, and composites. Ideal for machinery, electronics, and automotive applications, the undercut flat head design with a 100° countersink angle allows for seamless integration into countersunk holes, reducing stress concentrations and improving load distribution. This combination of material strength and precise engineering supports reliable performance in high-stress environments, minimizing maintenance and downtime.
Specification Summary & Compliance
This screw adheres to UNC thread standards with a Class 3A fit for high precision and tight tolerances. Key dimensions include a 3/8" length, 8-32 thread size, and partial threading up to a minimum of 0.28". Manufactured from 18-8 stainless steel with a Rockwell B70 hardness, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental and safety standards are upheld for industrial fastener applications.
