S-93270A550 M8 x 40 mm ISO 4017, DIN 933 Brass Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with CU2/CU3 brass construction, ideal for harsh environments and moisture-prone applications
• Excellent mechanical strength with 50,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing performance
• Precise thread engagement with Class 6g thread fit ensuring consistent, vibration-resistant fastening in industrial assemblies
• Quick installation and removal thanks to the external hex drive and standard 13mm head width for common tool compatibility
• Full-threaded design providing maximum grip length and uniform stress distribution along the entire 40mm shaft
• Global compliance assurance meeting ISO 4017/DIN 933 manufacturing standards for dimensional accuracy and interchangeability
• Environmental regulation adherence with RoHS 3 compliance, safe for use in regulated industries and electronic applications

Professional Applications & Engineering Value

These M8 coarse thread hex screws deliver exceptional performance in demanding environments where corrosion resistance and mechanical reliability are critical. Manufactured from CU2/CU3 brass, they prevent galvanic corrosion when mating with dissimilar metals while maintaining structural integrity in plumbing, marine, and electrical enclosures. The fully threaded M8x1.25 configuration with Class 6g thread fit ensures precise engagement in tapped holes, reducing the risk of cross-threading in high-vibration applications. The external hex drive and standardized dimensions per ISO 4017/DIN 933 enable efficient installation with common tools, streamlining assembly processes in OEM manufacturing and maintenance operations where brass fasteners offer both aesthetic appeal and functional durability.

Specification Summary & Compliance

This metric hex head screw features M8x1.25 coarse threads with Class 6g thread fit tolerance, ensuring precise dimensional accuracy per international standards. The 40mm length and fully threaded design comply with ISO 4017/DIN 933 specifications for mechanical properties and geometry. Manufacturing adheres to RoHS 3 (2015/863/EU) compliance under exemption 6(c) for lead in copper alloys, making these screws suitable for environmentally conscious applications while maintaining the required material performance characteristics.