S-92220A256 3/8"-16 x 2" ASTM A574 Alloy Steel Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 140,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior corrosion resistance from the black-oxide finish prolongs service life in harsh industrial environments.
• Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies.
• Low-profile socket head design allows installation in confined spaces without compromising drive engagement.
• High hardness (Rockwell C39) offers excellent wear resistance, maintaining thread integrity through repeated use.
• Partially threaded shank enables precise clamping force control where full threading isn't required.
• Compliance with ASTM A574 guarantees consistent quality and mechanical properties for critical applications.

Professional Applications & Engineering Value

Engineered for demanding applications, these low socket head cap screws combine black-oxide alloy steel construction with UNC coarse threads to deliver superior clamping force and vibration resistance. The 3/8"-16 thread size with Class 3A fit ensures precise engagement in machinery, automotive, and heavy equipment assemblies where tolerance stack-up is critical. The low-profile head with 3/16" hex drive accommodates space-constrained designs while providing sufficient torque transmission. This combination of high tensile strength and corrosion-resistant surface treatment makes these fasteners ideal for applications requiring both durability and environmental protection, from production fixtures to structural frameworks.

Specification Summary & Compliance

Manufactured to ASTM A574 specifications with Class 3A thread fit and UNC coarse threads. The 2" length features a partially threaded design with minimum 1-1/4" thread length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.