S-91412A450 3/8"-16 x 1" Stainless Steel Thread-Locking Hex Head Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with permanent nylon patch to prevent loosening under dynamic loads, ensuring assembly integrity in high-stress environments.
• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh or outdoor industrial settings without compromising durability.
• High tensile strength of 70,000 psi provides reliable load-bearing capacity for heavy-duty applications, reducing risk of fastener failure.
• Wide temperature tolerance from -55° to 250°F allows consistent performance in extreme thermal conditions, maintaining thread locker effectiveness.
• Precise Class 2A thread fit ensures smooth installation and secure engagement, minimizing cross-threading and improving assembly efficiency.
• External hex drive design enables easy torque application with standard tools, speeding up maintenance and reducing installation time.
• Full threading along the 1" length offers maximum grip and adjustability, accommodating various material thicknesses with uniform clamping force.

Professional Applications & Engineering Value

Engineered for demanding industrial environments, this 3/8"-16 UNC hex head screw combines 18-8 stainless steel with a nylon patch thread locker to address critical challenges like vibration-induced loosening and corrosion. The coarse UNC thread and Class 2A fit facilitate quick, reliable installations in machinery, structural frames, and equipment subjected to dynamic stresses. Its fully threaded design ensures uniform stress distribution, while the external hex drive allows high-torque applications without slippage. Ideal for automotive, manufacturing, and construction sectors, this screw maintains clamping force under thermal cycling from -55° to 250°F, delivering long-term reliability where safety and compliance are paramount.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with Class 2A thread fit for precise dimensional accuracy. Manufacturing conforms to industry specifications for hex head screws, including a tensile strength of 70,000 psi and Rockwell B70 hardness. It is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental safety and regulatory adherence for global industrial use.