Skimmer Equipment /
How Do You Replace Missing Skimmer Screws or Fasteners Correctly?
Match the exact skimmer screw or fastener to the part it secures, check for cracks or worn seals, and confirm a safe, leak-free fit before restarting the pool.
Archive date: this article was written for PoolSkimmer on Oct 7, 2026 and given the earlier archive date of Jul 22, 2025 so the blog reads as an organized archive. It was not published on that date.
The Significance of a Skimmer Screw
It is easy to dismiss a missing skimmer screw as an aesthetic issue, but the reality is that it is far more consequential. The fasteners on a pool skimmer are what keep the lid, face plate, weir and access cover where they belong, allowing the system to seal and function properly. Without them, or if they are not tight, one can expect rattling, water loss around the part, air in the lines or simply a poor seal.
Getting the Right Part
Selection of a replacement is dictated by the make and model of the skimmer and what exactly is being held in place. A screw may appear to be the right fit at a glance yet be wrong in its head style, thread or length.
For a Hayward or Pentair unit, for instance, it is best to match the original hardware. In most instances, ordering a set from the manufacturer is the surest way to get parts sized for the design. Before making a decision, review any brand markings on the lid or skimmer and see if other screws are in place for reference. Also check for any corrosion or cracked plastic in the vicinity of the hole.
Safety First
Never put hands on the skimmer while the pump is running. Shut it down and wait for circulation to cease before you do anything. If the basket has to come out, only then is it safe to proceed. Put on some gloves and eye protection as per the equipment manual and ensure there is no risk from moving parts.
Inspect Before You Install
With the area secure and the pump off, open up the skimmer and put in some time to clear out old sealant, mineral deposits and debris; a soft brush will do. Then have a good look at the condition of the piece:
- Are there hairline fractures near the screw hole?
- Is the plastic at the fastening point deformed?
- Any rust or white corrosion from moisture getting in?
- Are gaskets and seals in order?
If the base is damaged or the body is cracked, a new screw is not going to fix the matter. The part itself may require repair or be beyond saving.
Proper Installation
Stainless steel is the norm for pool screws, but the product must be suited to the skimmer’s design. When installing, follow these guidelines:
- Hand start the threads to prevent cross-threading.
- Make sure the face plate or cover is aligned before you begin to tighten.
- Go for snug, not forced. Overtightening risks warping the cover, cracking the plastic or stripping the threads. Should the screw just spin, back off and examine the hole.
- Where the design has multiple screws, replace the whole set.
Verifying the Work
Once the new screw is in, the lid should sit flush. Put the basket back in its proper place, close the skimmer and fire up the pump. Observe the area for any seepage, odd noises or vibration. If the skimmer is still loose or leaking, power the pump down and re-evaluate. Under no circumstances should one swim if the water level, electricals or skimmer operation are in question.
Pitfalls to Steer Clear Of
Some common errors include using an off-the-shelf generic screw, putting so much torque on it the plastic gives way, or replacing a single fastener when a set is called for. Do not work with the suction equipment in operation or ignore worn seals and stripped threads.
Time for a Professional?
There are times to leave it to a qualified pool technician. If you cannot pin down the correct screw set, or if the housing continues to leak after you have done the work, make a call. The same applies if the face plate or weir will not seat, or if you find water in the vicinity of energized equipment. A pro will be able to spot hidden damage and verify the system is in good order. Good hardware is important, but the overall condition of the skimmer is what counts.