S-96660A152 4-40 x 3/8" Steel Flanged Button Head Hex-Drive Screws
Steel Flanged 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 zinc plating that protects against rust in demanding industrial environments
- Exceptional tensile strength of 120,000 PSI ensures reliable performance under high-stress applications
- Enhanced thread engagement with Class 3A fit provides precise, vibration-resistant fastening
- Easy installation and removal thanks to the hex drive design and wide button head profile
- Flanged design eliminates need for washers, simplifying assembly while providing wider bearing surface
- Full threading along entire 3/8" length offers maximum grip and adjustment flexibility
- Compliance with RoHS 3 and REACH standards ensures environmental responsibility and global market acceptance
Professional Applications & Engineering Value
These 4-40 UNC coarse thread screws with Class 3A fit deliver exceptional performance in precision assembly applications where vibration resistance and reliable fastening are critical. The zinc-plated alloy steel construction provides excellent corrosion protection for industrial equipment, electronic enclosures, and machinery components exposed to harsh environments. The combination of 120,000 PSI tensile strength and Rockwell C32 hardness ensures these rounded head screws maintain integrity under repeated stress cycles. The flanged button head design with hex drive allows for high-torque installation while distributing clamping force evenly, preventing surface damage and reducing assembly time in automated production environments.
Specification Summary & Compliance
This 4-40 UNC coarse thread screw features precise Class 3A thread fit for superior dimensional accuracy and consistent performance. Manufactured to exacting standards with fully threaded right-hand threading and 3/8" length. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets while meeting stringent quality and sustainability requirements.
