S-99926A162 3/8"-16 x 3" Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction and passivated finish, ensuring longevity in harsh industrial environments
• Exceptional tensile strength rated at 70,000 psi with Rockwell B70 hardness for reliable performance under heavy loads
• Precise Class 3A thread fit provides tighter tolerances and superior engagement compared to standard Class 2A fasteners
• Optimized hex drive design with 7/32" drive size delivers maximum torque transfer and reduces stripping during installation
• Undercut flat head profile with 100° countersink angle ensures flush mounting and prevents surface protrusion
• Versatile partial threading allows for both secure fastening and adjustment flexibility in assembly applications
• Full regulatory compliance with RoHS 3 and REACH standards for environmentally responsible manufacturing

Professional Applications & Engineering Value

These 3/8"-16 UNC flat head screws deliver critical engineering advantages where surface-flush fastening and corrosion resistance are paramount. The 18-8 stainless steel composition combined with passivated finish creates a robust barrier against chemical exposure and atmospheric corrosion, making them ideal for marine equipment, food processing machinery, and outdoor industrial applications. The hex drive design provides superior torque transmission compared to standard slotted drives, reducing installation time and preventing driver slippage. With Class 3A thread precision and coarse UNC threading, these screws maintain secure engagement in vibration-prone environments while the undercut flat head ensures completely flush mounting without surface interference. These features collectively address common industrial challenges including fastener corrosion, installation efficiency, and long-term mechanical reliability.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with 3/8"-16 UNC coarse threads meeting Class 3A thread fit standards for superior engagement. Features include partial threading with minimum 2.8" thread length, 100° countersink angle, and undercut flat head profile. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures responsible manufacturing practices.