S-94105A425 5/8"-18 x 1" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in harsh industrial environments
• Precise Class 3A thread fit ensures tight tolerances and reliable seating in critical applications
• High-strength alloy steel construction with Rockwell C45 hardness provides exceptional shear and tensile strength
• Secure hex drive design (5/16") allows for high-torque installation without stripping or cam-out
• Fine UNF thread profile (5/8"-18) delivers superior vibration resistance and load distribution
• Headless flat tip configuration enables flush mounting while preventing component damage
• Full regulatory compliance with ASME B18.3, RoHS 3, and REACH standards for global industrial acceptance

Professional Applications & Engineering Value

This black-oxide alloy steel set screw addresses critical engineering challenges in precision machinery and heavy-duty equipment. The Class 3A UNF fine threads maintain dimensional stability under extreme vibration, preventing loosening in automotive powertrains, industrial robotics, and aerospace assemblies. The headless design with flat tip provides secure shaft positioning without protrusion, while the 5/16" hex drive accommodates high installation torque for permanent fastening applications. The Rockwell C45 hardness ensures reliable performance in high-stress environments where set screw failure could cause catastrophic equipment damage.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit precision and UNF 5/8"-18 fine thread spacing. Features include 1" length, 0.625" thread diameter, right-hand thread direction, and flat tip configuration. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international standards for industrial fastener applications.