S-90269A621 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh or humid industrial environments.
• Exceptional mechanical strength offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable, high-stress applications.
• Precise component alignment and pivot points enabled by the 8mm diameter shoulder with controlled tolerances.
• Enhanced durability and wear resistance from the black oxide finish and Rockwell B79 hardness.
• Secure and reliable fastening ensured by the Class 5g6g thread fit for consistent engagement.
• Easy installation and removal with the knurled hex socket head, providing a positive grip for standard 4mm hex keys.
• Compliance with stringent environmental regulations, being RoHS 3 and REACH compliant for global market acceptance.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to solve critical alignment and rotational challenges in industrial machinery, automated assemblies, and precision equipment. The 316 stainless steel material provides excellent resistance to chemicals and saltwater corrosion, making it suitable for food processing, marine, and chemical plant applications where durability is paramount. The black oxide finish not only adds an extra layer of corrosion protection but also reduces galling during installation. The precisely machined shoulder with an 8mm diameter and 12mm length acts as a reliable bearing surface or pivot, eliminating the need for separate spacers or bushings, which streamlines assembly, reduces parts count, and minimizes potential points of failure. The combination of coarse M5x0.8 metric threads and a hex socket head ensures quick and secure fastening in confined spaces, enhancing overall assembly efficiency and long-term operational reliability.

Specification Summary & Compliance

This shoulder screw conforms to metric (M5x0.8) coarse thread standards with a Class 5g6g thread fit for assured interchangeability. The shoulder diameter is manufactured to a tight tolerance of -0.072 to -0.01 mm, and the shoulder length tolerance is 0 to +0.25 mm, ensuring high dimensional accuracy for precise assembly. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from restricted hazardous substances and suitable for use in regulated markets.