Description

When your planter or drill disc opener starts wobbling or coming loose during field work, it’s usually this little nut that’s the culprit. A worn or missing disc opener nut can turn what should be precise seed placement into an uneven mess that’ll show up in your stands come emergence. This right-hand threaded nut keeps your disc assembly tight and true, so you get clean seed furrows every pass.

What You’re Getting

16mm x 2.0 metric thread pitch for a secure, precise fit
24mm across the flats—easy to grip with standard wrenches
Right-hand thread design for most disc opener applications
Heat-treated steel construction that won’t strip or break under field stress

Built for Real Farm Work

This nut fits disc opener assemblies on John Deere planters and grain drills that see everything from no-till corn planting to cover crop seeding. Whether you’re running through heavy residue or working clean ground, disc openers take a beating from rocks, roots, and constant vibration as you cover the acres.

Made to Last

Planter and drill hardware has to handle thousands of pounds of down pressure while dealing with dirt, moisture, and fertilizer. This nut is built with quality steel that threads smoothly and holds tight season after season, even in the toughest field conditions.

Good to Know

Always check that you’re getting the right thread direction—this is the right-hand version that tightens clockwise. If you need the left-hand thread version, that’s part number 488-7382. Clean the threads on both the nut and bolt before installation, and don’t forget to apply a little anti-seize compound to prevent galling in tough soil conditions.