S-90281A649 3/8"-16 x 6 1/2" DIN 939 Setup Studs

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance - Black-oxide steel finish provides superior protection against rust and wear in demanding industrial environments.
• Precision Thread Fit for Secure Fastening - Class 2A thread fit ensures reliable, vibration-resistant connections without cross-threading risks.
• High Tensile Strength for Heavy-Duty Applications - 125,000 psi minimum tensile strength handles extreme mechanical loads and stress.
• Dual-End Threading for Versatile Setup - Threaded on both ends with 1-1/4" lengths enables flexible mounting and alignment in jigs and fixtures.
• Standardized Compliance for Global Use - DIN 939 specification guarantees interchangeability and compatibility with international machinery.
• Consistent Hardness for Long-Term Performance - Rockwell C22 minimum hardness maintains structural integrity under repeated use.
• Eco-Friendly Material Compliance - Meets RoHS 3 and REACH regulations for safe, sustainable manufacturing practices.

Professional Applications & Engineering Value

These 3/8"-16 DIN 939 setup studs are engineered to solve critical alignment and mounting challenges in industrial fixtures, jigs, and precision assembly systems. The black-oxide steel construction resists corrosion in humid or oily environments, while the threaded both ends design allows for secure attachment at both fixture and machine interfaces. With a Class 2A thread fit, these studs prevent loosening under vibration—common in CNC machining and automated production lines. The 1-1/4" thread lengths provide ample engagement for stable setups, reducing downtime in tooling changes. Ideal for manufacturing engineers requiring high-strength, compliant components that meet rigorous DIN standards and environmental regulations.

Specification Summary & Compliance

This setup stud adheres to DIN 939 specifications with Class 2A thread fit for precise inch-system tolerances. It features a 3/8"-16 thread size, 6-1/2" length, and minimum tensile strength of 125,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no hazardous substances are used. Manufacturing conforms to documented hardness (Rockwell C22 minimum) and threading standards for consistent performance in industrial applications.