Ratchet Lever Nut - 5/16-18

Ratchet Lever Nut – 5/16-18 Specialty Threaded Fastening Knob

A ratchet lever nut – 5/16-18 is a specialty threaded fastening knob used mainly in woodworking jigs, fences, and shop fixtures where you need quick, repeatable tightening without tools.

• It has 5/16-18 UNC internal threads (standard coarse 5/16 bolt thread)
• It’s paired with a ratcheting lever handle
• The lever “clicks” or repositions so you can tighten or loosen it in tight spaces without spinning a full turn each time

This type is commonly used in:

• Table saw featherboards
• Router table fences
• Adjustable shop jigs and stops
• Clamp-style fixtures where frequent adjustment is needed

A direct example is the Ratchet Lever Nut 5/16-18, which uses that exact thread size and is designed for quick clamping adjustments without tools.

Why the “ratchet lever” matters

Instead of a normal hex nut where you need a wrench:

• The lever lets you tighten by hand
• The ratchet mechanism lets you reposition the handle without loosening the nut
• Useful in tight spots where a full rotation isn’t possible
• Thread meaning (5/16-18)
• 5/16 inch diameter bolt size
• 18 threads per inch (coarse UNC thread)