S-90383A107 M4 x 8 mm DIN 921 Steel Pan Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance through zinc-plated steel construction, extending service life in harsh industrial environments
• Precise Class 6h thread fit ensures reliable mating with nuts and threaded components, reducing assembly issues
• High 60,000 psi tensile strength provides exceptional load-bearing capacity for demanding mechanical applications
• Rockwell B71 hardness rating maintains thread integrity and prevents stripping during repeated installations
• Wide pan head design distributes clamping force evenly while slotted drive accepts standard screwdrivers
• Full threading along 8mm length enables maximum grip depth and adjustment flexibility
• Regulatory compliance with DIN 921, RoHS 3 and REACH ensures environmental and safety standards are met

Professional Applications & Engineering Value

Engineered for precision assembly, these M4 metric screws with coarse 0.7mm pitch threading deliver optimal performance in machinery, equipment manufacturing, and electronic enclosures. The zinc-plated steel construction provides essential corrosion protection where exposure to moisture or chemicals occurs, while the rounded pan head design offers superior bearing surface without sharp edges. With Class 6h thread tolerance and fully threaded configuration, these fasteners eliminate play in critical joints and maintain consistent clamping force. The combination of 60,000 psi tensile strength and Rockwell B71 hardness ensures reliable performance under vibration and dynamic loads, making them ideal for automotive components, industrial controls, and precision instruments where failure is not an option.

Specification Summary & Compliance

This M4 x 0.7mm x 8mm screw features right-hand coarse threads with Class 6h fit per metric standards. Manufacturing conforms to DIN 921 specifications for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors.