S-94309A412 M8 Thumb Nuts

Key Features & Benefits at a Glance

• Tool-free installation and removal with wing-shaped head design for rapid hand-tightening in tight spaces
• Enhanced corrosion resistance from zinc-plated steel construction, extending service life in humid or industrial environments
• Precise thread engagement with Class 6H metric thread fit, ensuring reliable, vibration-resistant connections
• Optimized for high-torque applications using coarse (1.25mm pitch) M8 threads for quick assembly and reduced cross-threading risk
• Durable, heavy-duty performance with 24.5mm base diameter distributing load evenly across fastened surfaces
• Broad compatibility with standard metric bolts and equipment, simplifying procurement and replacement

Professional Applications & Engineering Value

This M8 thumb nut delivers critical time and labor savings in maintenance-heavy industries by enabling tool-free fastening. The zinc-plated steel body resists oxidation in mechanical assemblies, electrical enclosures, and conveyor systems, while the Class 6H thread fit maintains clamping force under vibration. Its coarse metric threads allow rapid installation on machinery, access panels, and prototyping jigs—reducing downtime during adjustments. The 76.2mm wing span provides secure grip even with gloves, making it ideal for production lines, automotive fixtures, and outdoor equipment where quick disassembly is essential.

Specification Summary & Compliance

Manufactured to metric ISO standards with M8 x 1.25mm coarse threads, right-hand thread direction, and Class 6H internal thread tolerance for consistent mating with Class 6g bolts. The zinc-plated finish meets industrial corrosion protection requirements, and materials comply with RoHS and REACH environmental directives.