S-95235A551 3/8"-16 x 1/2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with nylon patch thread locker that maintains integrity up to 250°F (121°C)
• Exceptional holding power through Class 3A thread fit precision for reliable fastening in high-stress applications
• Extended tip design provides deeper penetration and enhanced grip on mating components
• High-strength alloy steel construction with Rockwell C45 hardness ensures durability and resistance to wear
• Easy installation and removal with 3/16" hex drive design for efficient maintenance cycles
• Industry-standard compliance with ASME B18.3 specifications for consistent performance and interchangeability
• Environmental responsibility through RoHS 3 and REACH compliance for sustainable operations

Professional Applications & Engineering Value

This 3/8"-16 UNC set screw delivers critical engineering solutions for industrial assemblies requiring permanent positioning and anti-loosening protection. The alloy steel core with Rockwell C45 hardness withstands repetitive stress, while the nylon patch thread locker actively counters vibration-induced slackening in machinery, motor mounts, and precision equipment. Its extended tip and coarse UNC thread profile ensure maximum bite into shafts and collars, preventing axial movement under heavy loads. Engineered to ASME B18.3 standards, this headless set screw offers reliable performance in manufacturing, automotive, and heavy equipment sectors where Class 3A thread accuracy and thermal stability up to 250°F are mandatory.

Specification Summary & Compliance

This set screw maintains Class 3A external thread fit per UNC standards with precise dimensional control (tip diameter: 0.25" ±0.009", tip length: 0.099" -0.01" to 0"). Manufacturing adheres to ASME B18.3 specifications where applicable under ASTM F912. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no restricted substances are present.