S-96445A320 M2.5 Thumb Nuts

Key Features & Benefits at a Glance

• Tool-free assembly efficiency - Knurled round head design enables secure hand-tightening without tools, reducing installation time in maintenance and prototyping.
• Superior corrosion resistance - Manufactured from 18-8 stainless steel to withstand harsh environments, moisture, and chemicals.
• Enhanced grip and anti-slip performance - Deep knurling on the head provides maximum finger traction, even with gloves or oily hands.
• Integrated flange for secure fastening - The built-in flange acts as a washer, distributing load and preventing surface damage.
• Precision thread engagement - Class 6H thread fit and M2.5 coarse thread ensure reliable mating and vibration resistance.
• Regulatory compliance for global markets - Meets REACH and RoHS 3 standards, ensuring safe use in regulated industries.
• Compact design for space-constrained applications - With a 6mm total height and 5mm collar diameter, it fits where wrenches can't reach.

Professional Applications & Engineering Value

This flanged thumb nut solves critical challenges in electronics, instrumentation, and machinery where frequent adjustments or tool-free access is essential. The 18-8 stainless steel construction resists oxidation and galvanic corrosion, extending service life in humid or industrial atmospheres. Its fully threaded metric design with coarse pitch (0.45mm) allows rapid installation on M2.5 studs or shafts, while the knurled round head ensures positive grip during high-vibration operation. The integrated flange eliminates separate washers, reducing part count and assembly errors in panel mounting, enclosures, and PCB fixturing. Ideal for OEMs and MRO teams requiring right-hand threaded fasteners that combine durability with ergonomic handling.

Specification Summary & Compliance

This thumb nut adheres to metric threading standards with M2.5 x 0.45 mm coarse threads and Class 6H internal thread fit for consistent dimensional accuracy. The flange features a 5mm collar diameter and 3mm collar height, while the overall height is 6mm. Manufacturing complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) directives, confirming the absence of restricted hazardous substances. The right-hand thread direction and fully threaded construction ensure broad compatibility with standard metric components.