S-90281A102 1/4"-20 x 8" DIN 939 Setup Studs

Key Features & Benefits at a Glance

• High tensile strength of 125,000 psi ensures reliable performance in demanding industrial setups, reducing the risk of failure under heavy loads.
• Black-oxide steel construction provides enhanced corrosion resistance, extending the stud's service life in harsh environments.
• Class 2A thread fit offers consistent and precise engagement, facilitating easy installation and removal without compromising integrity.
• Threaded on both ends with 1" thread length each allows for versatile connections in assembly jigs and fixtures, saving time during setup changes.
• Rockwell C22 hardness rating delivers excellent wear resistance, maintaining dimensional stability through repeated use.
• Compliance with DIN 939 standards guarantees interchangeability and quality assurance in international engineering applications.
• RoHS 3 and REACH environmental compliance ensures safe usage without hazardous substances, meeting modern regulatory demands.

Professional Applications & Engineering Value

These Black-Oxide Steel setup studs are engineered to address common challenges in precision tooling and fixture setups, such as alignment accuracy and durability. The 1/4"-20 threading on both ends with a Class 2A thread fit ensures secure fastening in machining jigs, reducing setup time and minimizing errors in repetitive industrial processes. Made from high-strength steel with a Rockwell C22 hardness, they resist deformation under stress, making them ideal for CNC machining, automotive assembly, and metalworking applications. The black-oxide surface treatment adds a layer of protection against rust, while adherence to DIN 939 standards ensures compatibility with global machinery, providing engineers with a reliable component for maintaining production efficiency and reducing downtime.

Specification Summary & Compliance

This setup stud features an 8-inch length with 1/4"-20 threading on both ends and a Class 2A thread fit for precise dimensional accuracy as per inch measurement standards. It meets the DIN 939 specification for double-ended studs, ensuring consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming the absence of restricted substances for safe industrial use.