S-91858A410 M5 x 16 mm DIN 963 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 316 stainless steel and passivated finish, ideal for harsh environments and extended service life.
• High tensile strength of 100,000 psi ensures reliable, durable fastening under significant mechanical stress.
• Precise Class 6g thread fit guarantees smooth installation and consistent performance in metric assemblies.
• Fully threaded M5 coarse pitch (0.8 mm) design provides maximum grip and holding power in a wide range of materials.
• Standard 90° countersink and flat head allows for a flush, unobtrusive finish when installed.
• Compliance with DIN 963, RoHS 3, and REACH ensures adherence to strict international quality and safety standards.
• Simple slotted drive offers straightforward installation and removal with common tools.

Professional Applications & Engineering Value

This M5 flat head screw is engineered to solve critical challenges in corrosive and demanding industrial settings. The core of its value lies in the 316 stainless steel material, which provides superior resistance to chlorides and acidic environments compared to standard grades, preventing premature failure. The passivated finish further enhances this corrosion resistance, creating a protective oxide layer. Its fully threaded design with a coarse pitch ensures high pull-out strength in softer substrates or where vibration is a concern. This makes it an indispensable fastening solution for applications in marine equipment, chemical processing plants, food and beverage machinery, and outdoor architectural metalwork, where reliability and longevity are non-negotiable.

Specification Summary & Compliance

This screw conforms to the dimensional and tolerance specifications of the DIN 963 standard for metric flat head screws. The thread fit is Class 6g as per ISO metric thread standards, ensuring dimensional accuracy and interchangeability. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for use in regulated markets.