S-96445A170 M4 Thumb Nuts

Key Features & Benefits at a Glance

• Effortless hand-tightening with a knurled round head for superior grip in tight spaces or when tools are unavailable
• Enhanced corrosion resistance from Black-Oxide coated 18-8 Stainless Steel, ideal for harsh or outdoor industrial environments
• Secure and stable fastening due to the integrated flange, which acts as a built-in washer to distribute load and prevent loosening
• Reliable coarse threading (M4 x 0.7mm) ensures quick and easy assembly, reducing installation time and labor costs
• Precision Class 6H thread fit guarantees consistent, high-strength engagement with mating bolts for vibration-resistant connections
• Broad material compliance with REACH and RoHS 3, making it safe for use in regulated industries and electronic assemblies
• Versatile metric sizing (9mm collar, 7mm height) for easy integration into a wide range of international machinery and equipment designs

Professional Applications & Engineering Value

This M4 flanged thumb nut is engineered to solve common assembly challenges in maintenance, prototyping, and field service. The Black-Oxide 18-8 Stainless Steel construction provides excellent resistance to rust and oxidation, which is critical for applications in manufacturing, marine, or food processing equipment where moisture and chemicals are present. The fully threaded design and coarse metric thread (0.7mm pitch) allow for rapid installation and disassembly without cross-threading, reducing downtime. The knurled head offers a non-slip surface for secure hand-tightening, making it ideal for adjustable components, access panels, and fixtures that require frequent manual adjustments. Its compact flanged profile increases the bearing surface, enhancing joint integrity and preventing surface damage, which is vital for maintaining the longevity of sensitive assemblies.

Specification Summary & Compliance

This thumb nut features M4 x 0.7 mm coarse threading with a Class 6H thread fit per ISO metric standards, ensuring precise dimensional accuracy and reliable performance. It is manufactured from 18-8 Stainless Steel with a black-oxide finish and includes a flanged, round head design (9mm collar diameter, 7mm height). The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) directives, confirming its suitability for environmentally conscious and regulated industrial applications.