Grass Trimmer Spool Button – Replacement Screw Cap

Your grass trimmer stops mid-job because the spool button snapped — and a replacement isn't available at the local hardware store. Sound familiar? This precisely engineered screw button gets your trimmer back in action without the wait, the hunting around, or the cost of a new machine.

How it solves the problem

The button does two things: it locks the trimmer spool firmly in place during operation, and when pressed, it releases the synthetic cutting line so you can feed or replace it. The geometry is reinforced compared to a standard button profile, because pressed and torqued parts need more material where it counts — and this one delivers that extra strength.

It fits a 10 mm shaft with a 10.4 mm through-hole for a snug, rattle-free seat, and it accepts an M13 screw thread. The steel cover recess is sized at 17.5 mm to properly match the OEM cover plate dimensions.

What you get

• Ready-to-install replacement spool button
• 10.4 mm shaft hole — fits standard 10 mm trimmer shafts
• M13 screw thread compatibility
• 17.5 mm recess for steel cover plate
• Reinforced wall geometry for better pressure resistance
• Compatible with common electric grass trimmers using this button format

The fix

Installation is straightforward — unscrew the old or broken button, drop this one onto the shaft, and secure it with the M13 screw. Refit the steel cover and you're done. No tools beyond what you already have. No modifications needed.

If your original button has cracked, stripped its thread, or simply gone missing, this is the part that gets you back to trimming. Order once, install once, and forget about it.

Specifications

Design by alex_belov