S-91025A548 1/4"-20 x 1 1/2" DIN 939 Setup Studs

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with black-oxide steel coating, extending service life in harsh industrial environments
• Precise dual-end threading with Class 2A fit ensures secure, vibration-resistant connections in critical setups
• High tensile strength of 125,000 psi provides reliable load-bearing capacity for demanding applications
• Consistent hardness (Rockwell C22) maintains dimensional stability under repeated assembly cycles
• DIN 939 compliance guarantees standardized quality and interchangeability in European machinery designs
• 1½" length with optimized thread distribution (⅞" and ⅜" ends) enables flexible positioning in confined spaces
• Full regulatory compliance with RoHS 3 and REACH ensures environmental safety and global market acceptance

Professional Applications & Engineering Value

This black-oxide steel setup stud addresses critical challenges in precision manufacturing and machinery assembly. The 1/4"-20 threading on both ends with Class 2A fit eliminates play in jigs, fixtures, and automated equipment, maintaining alignment accuracy through production cycles. The DIN 939 standard ensures compatibility with European tooling systems, while the 125,000 psi tensile strength prevents deformation under dynamic loads. The black-oxide surface treatment provides moderate corrosion protection without dimensional changes, making it ideal for CNC setups, mold making, and precision measuring instruments where reliability and repeatability are paramount.

Specification Summary & Compliance

Manufactured to DIN 939 specifications with Class 2A thread fit ensuring precise tolerance alignment. The stud features unified 1/4"-20 threading with ⅞" and ⅜" threaded sections on a 1½" overall length. Mechanical properties include 125,000 psi minimum tensile strength and Rockwell C22 hardness. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for hazardous substance restrictions.