Heavy Duty Tiller Tine Bolt Assemblies - Heavy Duty 16mm x 60mm

A 16mm x 60mm tiller bolt assembly is a heavy-duty, high-strength set of a bolt, lock nut, and flat washer that is designed to securely hold the tines to the rotor flange of agricultural rotary tillers. This is crucial in tough farming conditions where you need dependable tine retention - particularly when working in rocky, compacted, or debris-laden soils.

The main benefit is to ensure tine retention in difficult field conditions where high strength and stability are needed to handle soil cultivation impacts and vibrations. This assembly is built to withstand shear and clamping stress under heavy loads. With a 16mm shank diameter and 60mm length, this assembly is specifically designed for standard 16mm mounting holes and the average flange-plus-tine stack thickness on most modern rotary tillers and walk-behind cultivators - be it tiller blades, tines, or structural components

Choosing the right tiller bolt assembly prevents issues like loosening, tine loss, and damage, reduces downtime, and keeps the machine running efficiently in tough soil.

Product Details

Use this section as a quick guide to check the fit and to place a purchase order

• Material / Grade – Most often these assemblies are made using high-strength heat-treated steel (Class 8.8 or 10.9), which has a yield strength of 640-940 MPa and an ultimate tensile strength of 800-1,040 MPa
• Dimensions / Specs
  • Shank diameter: 16mm
  • Overall length: 60mm
  • Thread pitch: M16 x 2.0mm coarse thread
  • Head style: Most bolts have a hexagonal head or countersunk head design, depending on the application
• What comes in the set – A complete assembly shipped with the bolt, locking nut, and washer
• Finish and protection - The zinc plating gives a reliable barrier against white rust and thread corrosion

Frequently Asked Questions

Here are the most common questions about 16mm x 60mm tiller bolt assemblies:

How tight should I make the tiller bolt? A dry M16 bolt (Class 8.8) should be around 200-220 Nm tight. Class 10.9 bolts are roughly 300-320 Nm tight. Always follow the machine manufacturer's torque spec, and recheck it each season for the first few hours of use.

How often should I check and replace the tiller bolt assembly? Check by eye for stretched threads, a bent shank, a rounded head, or heavy rust. For light use, inspect at the start, middle & end of the season. If you're using it for heavy commercial purposes, then monthly inspection is a safer route. Replace the bolt as soon as you see signs of damage; after that, buying a brand-new one is much cheaper than tine repairs.

Do the nuts and washers come with it? The entire product ships with a complete assembly: bolt, locking nut, and washer, ready for use. Make sure to always use matched components, as a lower-grade nut can weaken the entire joint, and an undersized washer can put pressure on the flange surface

Say Goodbye to Tiller Tine Issues

Tiller bolts that snap, tines that come loose, and breakdowns in the middle of a field don't just cost you money - they also cost you valuable time and fuel. Use the 16mm x 60mm tiller bolt assembly to end those issues with high-tensile steel, matched hardware, and a rust-resistant finish that lasts.