S-96209A716 1/4"-20 x 1 1/4" ASME B18.3 Super-Corrosion-Resistant 316 Stainless Steel Thread-Locking Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction, ideal for chemical, marine, and outdoor applications.
• Reliable, permanent vibration resistance with the integrated nylon patch, preventing loosening under dynamic loads and eliminating the need for separate lock washers.
li>High-strength performance with a 70,000 psi tensile strength and Rockwell B70 hardness, ensuring dependable fastening under high-stress conditions.
• Precise and secure fit from the Class 3A UNC coarse thread, offering tighter tolerances for improved assembly accuracy and joint integrity.
• Wide operational temperature range from -70° to 250°F, maintaining locking integrity and mechanical properties in extreme thermal cycles.
• Streamlined installation and removal with the standard hex socket (3/16" drive) and socket head profile, allowing for high torque application in confined spaces.
• Full-threaded design for maximum grip and engagement length, providing consistent clamping force along the entire 1-1/4" length.

Professional Applications & Engineering Value

This 316 stainless steel socket head cap screw is engineered to solve critical challenges in demanding industrial settings. Its core value lies in combining exceptional corrosion resistance with a permanent nylon patch locking mechanism. This addresses the common failure points of fastener loosening due to vibration in machinery, automotive assemblies, and processing equipment, while the UNC coarse thread ensures rapid assembly and robust performance. The Class 3A thread fit guarantees precision in high-volume manufacturing, reducing the risk of cross-threading and assembly errors. This makes it an indispensable industrial fastener for applications where reliability, durability, and compliance with stringent specifications are non-negotiable.

Specification Summary & Compliance

This fastener adheres to a Class 3A thread fit for superior dimensional accuracy and a UNC (Unified Coarse) 1/4"-20 thread. It is manufactured in compliance with the ASME B18.3 standard. The product is also confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets global environmental and safety regulations for hazardous substances.