Pumps With a Lock: What Fits, and What Fails
By Joe Joo · 8PCK · Shantou · Updated 26 October 2026
Pumps with a Lock in 24/410, used for baby wash, travel and e-commerce. The specification question is a lock that releases in a bag and pumps the product out.
A quarter-turn lock is the practical answer to shipping a pump.
We supply pumps with a lock for baby wash, travel and e-commerce, tested on the bottle rather than shipped loose.
The free Bottle Spec Checker tests whether your neck fits the closure and whether the wall survives a pump stroke.
30-second check: does your bottle pass? Open ▾
What Fits
Pumps with a Lock come in 24/410, 28/410. Choosing the neck first cuts the range to two or three options, and the rest is dose, finish and liner.
The failure we see most is a lock that releases in a bag and pumps the product out.
The Neck Rule
Diameter plus thread: 410 and 415 are not interchangeable.
Testing
Fitted and leak-tested on the filled bottle before packing.
Where It Fails
A lock that releases in a bag and pumps the product out. That is decided by the specification, not by the mould.
Ask for a filled sample left on its side for 48 hours before approving.
What to Send in a Brief
Neck, closure type, product viscosity and quantity. Those four answers are enough to quote.
Ordering Closures Without Ordering the Wrong Ones
A closure is only as good as the bottle it is tested on. Two suppliers can each be within tolerance and still leak as a pair, so the test has to be on the filled pack.
Send the Bottle, Not the Drawing
Dimensions do not capture thread start or the sealing land.
Send the Product
A gasket that passes with water can swell in a week with a solvent.
Agree the Sample
Keep one filled, approved sample as the reference for the production run.
Cost and Lead Time
Closures are quoted per 1,000 pcs and up, with a separate tooling cost only if the shape does not exist. Standard caps and pumps are stock items; anything moulded for you starts at 3,000–5,000 pcs.
Questions We Get on This
What neck does a pumps with a lock fit?
24/410, 28/410.
What is the MOQ?
1,000 pcs on existing moulds.
Can you test it with my formula?
Yes — send 200 ml of the product and we test the closure on it.
Is it supplied fitted?
Yes, fitted and leak-tested before packing.
Do you supply closures separately?
Yes, but they are tested on the bottle before they ship.
What if my bottle is from another supplier?
Send a sample; we test the closure on your bottle.
Can you match a colour?
Yes — closure and bottle can be colour-matched from a Pantone reference.
Sizes That Fit This Guide
Get a Price on This, Within One Business Day
Tell us the capacity, the neck and the quantity. You get unit price, lead time and a sample plan — not a catalogue.
Every batch is gauged at the neck and weighed. The documents travel with the shipment.