S-91025A728 1/2"-13 x 4" DIN 939 Setup Studs

Key Features & Benefits at a Glance

• Exceptional tensile strength of 125,000 psi ensures reliable performance under high-stress industrial applications
• Corrosion-resistant black-oxide steel construction provides enhanced durability in demanding environments
• Precision Class 2A thread fit guarantees smooth assembly and secure fastening connections
• Dual-end threading design (1½" and ¾" thread lengths) offers versatile installation options for various setups
• Rockwell C22 hardness rating maintains structural integrity and resistance to deformation
• Full DIN 939 standard compliance ensures consistent quality and international specification adherence
• RoHS 3 and REACH regulatory compliance meets environmental safety standards for global industrial use

Professional Applications & Engineering Value

These black-oxide steel setup studs deliver critical engineering value through their optimized material properties and threaded configuration. The 1/2"-13 threading on both ends with different engagement lengths (1½" and ¾") provides flexible installation solutions for machinery alignment, fixture setups, and precision manufacturing equipment. The black-oxide surface treatment creates a protective barrier against oxidation and corrosion, extending service life in industrial environments where moisture and chemicals are present. With their high tensile strength and Rockwell C22 hardness, these studs maintain dimensional stability under repeated loading cycles, preventing thread stripping and connection failures in critical assembly applications. The combination of DIN 939 compliance and dual-end threading makes them ideal for jigs, fixtures, and temporary mounting systems requiring precise positioning and reliable fastening performance.

Specification Summary & Compliance

These setup studs feature Class 2A thread fit tolerance for precise engagement and 1/2"-13 unified threading on both ends. Manufacturing specifications strictly adhere to DIN 939 standards for dimensional accuracy and performance requirements. The studs demonstrate full compliance with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) environmental directives, ensuring they meet current international regulatory requirements for hazardous substance restrictions.