Screw gas canister vs bayonet
Updated: 23 October 2026
You have two cans that look the same height in a photo, and one of them will not even start on the stove you cooked with last weekend. Screw gas canister vs bayonet is that failure. The cheaper can is the wrong can when the collar does not match. This page is only the incompatibility, mapped onto the eight kept amazon.co.uk listings in the [gas cartridge comparison](/hub/grills-and-barbecues/gas-cartridge). Once the collar is identified, prices are the next question, not the first.
You have two cans that look the same height in a photo, and one of them will not even start on the stove you cooked with last weekend. Screw gas canister vs bayonet is that failure.
You have two cans that look the same height in a photo, and one of them will not even start on the stove you cooked with last weekend. Screw gas canister vs bayonet is that failure. The cheaper can is the wrong can when the collar does not match. This page is only the incompatibility, mapped onto the eight kept amazon.co.uk listings in the gas cartridge comparison. Once the collar is identified, prices are the next question, not the first.
Our top picks
| Badge | Product | Connection | Resealable claim | Mix in the title | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Green Haven Green Haven C500 butane-propane mix, pack of 12 | EN417 screw | Threaded resealable valve | Yes | 9.4 | about £46.48 | View offer |
 Straame Straame 227 g push-fit, pack of 8 | Push-fit | Self-sealing valve | No | 9.2 | about £11.99 | View offer | |
| Alternative |  Green Haven Green Haven butane 8-pack, bayonet bullets | Bayonet / non-threaded in the bullets | Non-threaded valve | No | 9.2 | about £11.99 | View offer |
Three collars
A screw canister has a threaded valve, the Lindal-style fitting many Jetboil, MSR, Optimus and Primus burners expect. You turn it in. A bayonet, or push-fit, can has a thin notched collar. You push and turn. Cadac’s 2024 catalogue splits a threaded cartridge from a 227 g SSN-29 nozzle cartridge. They are not two names for one part.
Campingaz Easy Clic is the third system. The CV470 uses a proprietary clip. A notched supermarket bayonet will not click into an Easy Clic stove, and an Easy Clic can will not screw into an EN417 burner. Adaptors exist because the cans do not interchange. EN417 in a title is a cartridge standard, not a collar. Pierceable type 200 cans stay on the stove until empty. If the photo shows a notch, the letters have not turned it into a screw thread.
Where this set sits
Two Straame listings are the push-fit: 227 g butane, self-sealing valve claimed, push and turn. The 4-pack is about £8.99 and the 8-pack is about £11.99. Both show 4.6 from 2,423 reviews. You cannot screw either into an EN417 stove and expect it to hold. A short nozzle that needed an adaptor for some torches is a torch problem, not evidence of a screw cartridge.
Four Green Haven listings are the screw C500s, with a threaded resealable valve in the bullets. The other Green Haven page puts EN417 and an 8-pack in the title, then bayonet and non-threaded in the bullets, and one bullet says four cans. A UK review says they are not screw-type fittings. SMART SHOPPING at about £29.99 never names a valve. The title says 28 butane bottles and the size field says 20. No Campingaz CV can is in the kept set.
When screw, when push-fit
Choose screw when the stove was built for a threaded EN417 can, including a Safari Chef that specifies EN417. The 2-pack is the one whose count fields agree. The mix 12-pack is the one whose title states a butane-propane blend. A C500 still has to start by hand. Reviews mention a tight Weber thread and a regulator that did not match. The letters are the right first match, not a guarantee the can will feel loose.
Choose push-fit when the appliance asks for a 227 g notched can. Straame is the named push-fit here. The bayonet-bulleted Green Haven page is the other candidate only after you trust the bullets rather than the EN417 in the title. If a listing says it fits camping stoves of every kind, ignore that line and use the collar. A Cadac bayonet adaptor around £7.99 is another product. It was not part of this comparison.
What not to force
Do not cross-thread a screw can because it almost starts. Do not lean on a bayonet can until the notch finds something. The sequence, including when to stop, is how to fit a gas cartridge. A spinning collar, which reviewers report on the mix 12-pack, means the valve is moving instead of engaging. Back off. Pliers are not the next step.
Do not let a title override a bullet. Do not treat the unnamed 28-pack as Straame because both say butane. Butane is the fuel line. The collar is the other decision, and cold weather does not change it. Look at the socket, not at the last can in the drawer. A notch is push-fit. A female thread is screw. A Campingaz clip looks like neither.
Common questions
Can I screw a Straame can into an EN417 stove?
No. Straame’s listings in this set are push-fit, push and turn, 227 g butane. An EN417 screw stove expects a threaded valve, which in this table is the Green Haven C500 pages. The can will not hold if you try to spin a notch into a thread. An adaptor sold beside the listing is a different product, not a feature of the Straame can.
Is Green Haven’s 8-pack the same valve as the C500 packs?
No. The C500 pages describe a threaded resealable EN417 valve. The other Green Haven listing puts EN417 in the title and bayonet, non-threaded, in the bullets. One bullet on that page says four cartridges. A UK review says they are not screw-type. Treat that page as a bayonet candidate with a contradictory title, not as a bulk C500.
Is Campingaz Easy Clic a bayonet in the Cadac sense?
No. Easy Clic is Campingaz’s own clip. Cadac’s 227 g can is a notched SSN-29 nozzle cartridge. They are different systems, and neither is the Lindal screw used on many backpacking stoves. No CV can is among the eight listings kept here, so this comparison does not include an Easy Clic refill.
What does a notch on the collar mean?
A notch means push-fit, also called bayonet. You push and turn rather than screw the can down a thread. Straame states that motion. A smooth threaded neck, without that notch, is the screw can. If you are looking at a photo and cannot see either clearly, do not buy on the EN417 letters alone.
Which listing never tells me the valve?
SMART SHOPPING at about £29.99. The title says 28 butane bottles, the size field says 20, and there is no EN417, screw or bayonet line. Reviews disagree about whether the cans engage. Every other kept listing at least claims a side, even the Green Haven page that claims two different sides at once.
Related pages
Sources
Public UK sources used for this comparison. Listing prices, stars and review counts are the amazon.co.uk figures for these ASINs, captured on 20 October 2026. Retrieved 22 October 2026.
- Liquid Gas UK, Consumer Guidance Sheet 28 (2022) (retrieved 22 October 2026)
- Camping and Caravanning Club, gas for tent campers (retrieved 22 October 2026)
- Campingaz UK, gas families (retrieved 22 October 2026)
- Trangia, gas burner guide (retrieved 22 October 2026)
- Cadac 2024 consumer catalogue (retrieved 22 October 2026)
- Cornwall Council, camping gas canisters (retrieved 22 October 2026)
- WildBounds, camping gas explained (retrieved 22 October 2026)
- LeShuttle, carriage of dangerous and hazardous goods (retrieved 22 October 2026)