S-92949A348 3/8"-24 x 5/8" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction and passivated finish for extended service life in harsh environments
• Exceptional holding power with 70,000 psi tensile strength and Class 3A thread fit for vibration-resistant, secure fastening
• Optimized drive engagement through 7/32" hex drive design providing reliable torque transmission and reduced stripping risk
• Enhanced clearance and aesthetic appeal with rounded button head profile that minimizes snagging while maintaining professional appearance
• Precision fine threading (3/8"-24 UNF) delivering superior adjustment accuracy and load distribution in critical assemblies
• Consistent performance reliability backed by Rockwell B55 hardness rating ensuring dimensional stability under load
• Full regulatory compliance meeting ASME B18.3 specifications while being RoHS 3 and REACH compliant for global applications

Professional Applications & Engineering Value

This 3/8"-24 UNF rounded head hex screw delivers critical engineering solutions where corrosion resistance and precision threading are paramount. The 18-8 Stainless Steel construction with passivated finish provides exceptional protection against chemical exposure and atmospheric corrosion, making it ideal for marine equipment, food processing machinery, and chemical processing applications. The Class 3A thread fit ensures zero-play fastening in high-vibration environments, while the fine thread pitch offers superior clamping force distribution for critical joint integrity. The rounded button head design combines sleek aesthetics with practical functionality, eliminating sharp edges in accessible areas while the hex drive configuration enables high-torque installation without cam-out issues.

Specification Summary & Compliance

This precision fastener features 3/8"-24 UNF fine threads with Class 3A fit for exacting tolerance requirements, manufactured to ASME B18.3 specifications. The screw maintains full RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, ensuring environmental responsibility while delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding industrial applications. The fully threaded design provides consistent engagement throughout the 5/8" length, while the right-hand thread direction follows industry-standard installation protocols.