Independent comparisons. We may earn from shop links. More info

Squeaky floorboard screws: headed fixings or a snap-off kit

Updated: 21 October 2026

The squeak is under the bedroom carpet, or it is a pine board you can see, and both answers in the search are called floor screws. A headed screw into a joist can be undone if you need the board up later. A snap-off kit goes through the carpet and leaves no head, so that board stays down. The boxes are the [floorboard screws comparison](/hub/flooring/floorboard-screws). If you buy through our links, we may earn a commission at no extra cost to you. We used the kit in this comparison, the headed floorboard box, and UK repair notes, on 19 October 2026.

The squeak is under the bedroom carpet, or it is a pine board you can see, and both answers in the search are called floor screws. A headed screw into a joist can be undone if you need the board up later.

Our top picks

Keple Keple floorboard screws, 3.9 x 58 mm

Best overall

Keple Keple floorboard screws, 3.9 x 58 mm
5.5/10about £18.99
View offer
Ulti-Mate Ulti-Mate floorboard screws, 4.2 x 50 mm

Rank 2

Ulti-Mate Ulti-Mate floorboard screws, 4.2 x 50 mm
8.6/10about £9.99
View offer
AYNEFY AYNEFY squeaky floor kit, 50 screws

Alternative

AYNEFY AYNEFY squeaky floor kit, 50 screws
3.3/10about £23.33
View offer
On this page
  1. 1.What the squeak is
  2. 2.Headed screws when you can see the board
  3. 3.Snap-off kits under carpet
  4. 4.When to stop

What the squeak is

Most of these squeaks are a board moving on a joist. A nail has loosened, the timber has shrunk, and the board clicks each time you put your weight there. A new screw into that joist, beside the old nail, clamps the board. A screw that spins has missed the joist and is turning in the bay. If the floor bounces, the joist may be cut, rotten or spanning too far. UK domestic joist centres in the chipboard guidance are 400–450 mm or 600 mm, not the 16 inch figure on some kit leaflets. The length and gauge, once the board is visible, sit on the buying guide.

Headed screws when you can see the board

If the boards are bare, or you can peel the carpet and put it back, use a headed screw you can reverse. The match in this set is the Ulti-Mate FB42050, 4.2 x 50 mm, partially threaded, £9.99 for 200, 4.5 from 309 reviews. Partial thread lets the head pull a loose board down. On 22 mm board, or through a measured carpet stack, 50 mm can come up short, and you add only the thickness you measured. Buyers report heads and shanks shearing, including about 10 percent at the shank in one estimate, and some say the claimed bit was missing. A sheared head is no longer a head you can undo. The same ASIN is the top pick on the best floorboard screws page. It is the wrong tool if the carpet cannot come up at all.
Keple Keple floorboard screws, 3.9 x 58 mm

Testsieger

Keple Keple floorboard screws, 3.9 x 58 mm
5.5/10about £18.99
View offer

Snap-off kits under carpet

A snap-off kit is the path when the carpet stays down. You locate a joist through the pile, drive a scored screw, and break the head off below the carpet. The kit is AYNEFY, ASIN B0D464H8DV, £23.33, 50 screws and five tools, 2.9 from five reviews. Diameter, length, alloy and coating are not stated. Fifty screws at £23.33 is about 47p each before the tools, against about 5p for the headed Ulti-Mate screw. A snapped screw with no drive is awkward to extract, so be sure of the joist before the first one.

When to stop

Cables through joists should be at least 50 mm from the top or the bottom, or mechanically protected, under the BS 7671 guidance NICEIC explains. That is not a map of your joists. Stop if you smell gas, if the driver strikes metal, or if you see water. A kit leaflet that says check for pipes does not make a blind screw safe. A headed screw, on a board you have lifted, at least lets you see the void once.

Common questions

Why does the floor squeak?
Usually a board is moving on a joist because a nail has loosened or the timber has shrunk. A screw into that joist can clamp it. A squeak in the gap between joists is often two boards rubbing, and a screw in the bay does not clamp a joist that is not there. A bounce in the floor can be the joist itself, cut, rotten or over-spanned, which screws in the boards will not cure.
Can you fix it without lifting the carpet?
Yes, with a snap-off kit, if you can find the joist through the carpet and you accept that the head will not be there afterwards. The AYNEFY kit in this comparison is sold for that job, at £23.33 for 50 screws and five tools. It does not state the screw length. If you can peel the carpet and relay it, a headed screw is the repair that still lets you lift the board later.
What is the difference between a headed screw and a snap-off screw?
A headed floorboard screw stays drivable, so you can undo it. The example in this set is 4.2 x 50 mm, partially threaded, £9.99 for 200. A snap-off screw is scored so the head breaks below the carpet. The kit’s own review says no head remains. One can be removed with a driver. The other is a one-way fixing unless you excavate it.
What did buyers of the kit report?
The listing is 2.9 from five reviews. One calls it an easy quick fix. Others say the plastic snap tool failed after two screws, the driver head wore away, and a drill bit does not fit the screws. A review also says no screw heads remain and warns against the kit if you may lift the flooring. Five reviews are a small file. They are still the only UK notes this comparison has on that ASIN.
When is the joist the problem, not the screw?
When the floor bounces, the joists are cut or rotten, or the span looks too far for the timber you can see. Clamping every board will not replace a joist. Call a joiner before you cover the evidence with a kit. Call an electrician or a Gas Safe engineer if you cannot see the void and you have reason to think a cable or a pipe is in the way. A fire or sound barrier in a flat floor is the same kind of stop.

Related pages

How to screw down floorboards

Floorboard screws

Best floorboard screws from these amazon.co.uk listings

Floorboard screws size for chipboard and timber boards

Chipboard flooring screws vs tongue and groove screws

Sources

Public UK sources and amazon.co.uk listings, checked on 19 October 2026. Shelf prices and star lines are the figures in the display file. Aisle prices outside amazon.co.uk are context, not these shelf prices.

  1. NHBC Standards 6.4.19 Floor decking (retrieved 19 October 2026)
  2. NHBC Standards 2025 Chapter 6.4 (retrieved 19 October 2026)
  3. NICEIC on Voltimum: cables installed in walls and floors (retrieved 19 October 2026)
  4. UK Construction Blog: screws for chipboard flooring (retrieved 19 October 2026)
  5. Southern Timber: chipboard sheet materials (retrieved 19 October 2026)
  6. Wickes: flooring screws (retrieved 19 October 2026)
  7. BSI BS EN 14592:2022 timber fasteners (retrieved 19 October 2026)
  8. ToolStore UK: how to fix squeaky floorboards (retrieved 19 October 2026)