S-94356A113 4-40 x 3/8" Stainless Steel Torx Flat Head Screws
Stainless Steel Torx 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
- Exceptional tensile strength of 130,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
- Superior corrosion resistance from A286 stainless steel material extends service life in harsh industrial environments.
- Precise Class 3A thread fit guarantees secure, vibration-resistant assemblies with minimal loosening over time.
- Torx T8 drive design provides superior torque transmission and reduces cam-out, preventing tool slippage and head damage.
- Fully threaded shank offers consistent holding power along the entire length for uniform load distribution.
- 82° countersink angle allows for a flush, low-profile installation that minimizes protrusion in tight spaces.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global industry standards for hazardous substance control.
Professional Applications & Engineering Value
These 4-40 UNC flat head screws are engineered with A286 stainless steel to address critical needs in demanding sectors such as aerospace, automotive, and heavy machinery. The Class 3A thread with coarse spacing ensures rapid assembly and high resistance to vibrational loosening, while the Torx T8 drive enhances torque efficiency, reducing installation time and tool wear. The fully threaded design and 82° countersink provide a secure, flush fit in precision components, making them ideal for applications where space constraints and reliability are paramount. Their high tensile strength and Rockwell C24 hardness ensure durability under dynamic loads, offering long-term performance in corrosive or high-temperature environments.
Specification Summary & Compliance
This product adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from restricted hazardous substances. Manufactured to exact inch-based measurements, including a thread size of 4-40 and coarse spacing, it is suitable for industrial applications requiring consistent performance and regulatory conformity.
