S-91858A330 M4 x 8 mm DIN 963 Stainless Steel Slotted Flat Head Screws
Stainless Steel Slotted Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional corrosion resistance from 316 stainless steel and passivated finish, ideal for harsh environments
- Secure, flush installation with a standard 90° countersink angle and flat head design for smooth surfaces
- Reliable coarse threading (0.7mm pitch) ensures quick assembly and strong holding power in various materials
- Precise Class 6g thread fit guarantees consistent performance and compatibility with standard metric nuts
- High tensile strength of 100,000 psi provides dependable load-bearing capacity for demanding applications
- Full threading along the 8mm length offers maximum grip and adjustment flexibility
- Compliance with DIN 963, RoHS 3, and REACH ensures adherence to strict industrial and environmental standards
Professional Applications & Engineering Value
This M4 flat head screw is engineered to address common challenges in industrial settings, such as exposure to corrosive agents and the need for reliable, flush-mount fastening. Made from 316 stainless steel with a passivated finish, it delivers superior resistance to chemicals, moisture, and salt, making it perfect for marine, chemical processing, and outdoor equipment. The coarse thread (0.7mm pitch) and Class 6g thread fit enable easy installation and reduce the risk of cross-threading, while the fully threaded design ensures uniform stress distribution. Its 90° countersink angle allows for seamless integration into surfaces, minimizing protrusions in machinery, electronics, and structural assemblies where safety and aesthetics are critical.
Specification Summary & Compliance
This screw adheres to DIN 963 specifications, with a Class 6g thread fit ensuring precise dimensional accuracy for metric coarse threads (M4 x 0.7mm). It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial use. The manufacturing process follows standardized metrics for the flat head profile, right-hand threading, and slotted drive, providing consistent quality and reliability in professional applications.
