DW SP061 Square Nut 1/4-20 for Bass Drum Pedal Cam
This 1/4-20 square nut belongs to the cam of the 5000 and 9000 series bass drum pedals. It is a tiny part that the pedal's entire adjustment depends on: when it is missing, the cam holds nothing, and the pedal becomes unusable.
What sets it apart
- 1/4-20 thread
- Square shape, designed for its seat
- Part of the cam on 5000 and 9000 pedals
- Original part, not a close-enough equivalent
- Locks a setting that controls the whole stroke
- Chrome finish
Why a square nut and not an ordinary one
A square nut does not turn in its seat: its flat sides butt against the walls. So you can tighten the screw from one side only, without holding the nut with a second wrench.
On a pedal, where space is tight and adjustments are often made crouching on the floor, that detail makes all the difference. Replacing this nut with a hex nut from the hardware store does not work: it would turn, and the setting would never hold.
The cam, and what it decides
The cam is the part that turns the motion of your foot into the motion of the bass drum beater. Its position controls the stroke, the point of attack and the feel underfoot.
All of that rests on one clamp. If the nut is missing or damaged, the cam shifts under load and the setting drifts while you play — something often blamed on the spring or the chain, when it comes from a part that costs a few dollars.
The part you lose when taking things apart
A square nut is held by nothing once the screw is out. It falls, rolls, and ends up under a case or in the rug. It is the classic scenario of pedal maintenance done on a gig night.
Keeping a spare in the hardware case costs less than a gig played with a pedal whose cam is moving. It is the kind of part you buy before you need it, not after.
Specifications
| Thread pitch | 1/4-20 |
|---|---|
| Shape | Square nut |
| Part concerned | Pedal cam |
| Pedals | 5000 and 9000 series |
What it is for
- Replacing a cam nut lost during disassembly
- Bringing back a pedal whose setting drifts
- Completing an incomplete used pedal
- Keeping a spare part in the toolbox
- Servicing a 5000 or 9000 pedal before a tour
Compare with other manufacturers
On a part this precise, the comparison is mainly about the risk of substitution:
| Manufacturer | Comparable model | What differs |
|---|---|---|
| Tama | Cam hardware for the brand's pedals | Shape and pitch specific to each system |
| Pearl | Pedal cam parts | Seats sized differently |
| Yamaha | Bass drum pedal hardware | Nut shapes differ depending on the mechanism |
Frequently asked questions
- Can I replace it with a nut from the hardware store?
- A hex nut would turn in a seat designed for a square shape, and the clamp would not hold. The thread pitch alone is not enough to make a part equivalent.
- Which pedals does it fit?
- The cam of the 5000 and 9000 series bass drum pedals.
- Do I have to take the whole pedal apart?
- No, you get to it at the cam. Just remove the matching screw and put the nut back in its seat.
- Why does my cam move even when it is tightened?
- Because the nut or its seat may be damaged. A deformed nut no longer bears properly, even when fully tightened.
Avis clients
A pedal setting that wanders off during the gig?
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