S-95560A100 4-40 x 1/4" Stainless Steel Oversized-Flange Button Head Hex-Drive Screws
Stainless Steel Oversized-Flange Button Head Hex-Drive 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 316 stainless steel construction, ideal for harsh industrial and marine environments.
- High mechanical strength and durability provided by 80,000 psi tensile strength and Rockwell B85 hardness for reliable, long-term performance.
- Easy and secure installation with a hex drive (1/16") and flanged design, preventing over-insertion and improving grip.
- Wide rounded button head profile offers a low-profile, finished appearance and distributes clamping force effectively.
- Precise and reliable coarse threading with 4-40 UNC Class 2A fit ensures quick assembly and strong holding power.
- Fully threaded 1/4" length provides maximum engagement and shear strength in various material thicknesses.
- Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.
Professional Applications & Engineering Value
Engineered for demanding applications, this 316 stainless steel rounded head screw combines material excellence with a functional flanged design and 4-40 UNC coarse thread. The fully threaded body and Class 2A thread fit ensure vibration resistance and secure fastening in assemblies subject to stress, such as in electronics, machinery, and automotive components. The hex drive allows for high-torque installation without slippage, while the wide button head provides a larger bearing surface, reducing the risk of surface damage. Its high tensile strength and corrosion resistance make it a reliable choice for industrial applications where failure is not an option.
Specification Summary & Compliance
This screw features a 4-40 UNC coarse thread with a Class 2A tolerance for consistent fit. It is fully threaded and measures 1/4" in length with a 0.344" flange diameter. Manufactured from 316 Stainless Steel, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring environmental safety and regulatory adherence for industrial use.
