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You're looking at stainlss steel couplings in K2 spec, usually packed 100 to a carton with plastic inner boxes for protection during transit, and we ship form Foshan with standard lead times of roughly 2-3 weeks depending on order volume.
It's a quick-release pneumatic fitting that basically lets you swap air tools without turning off compressor—just push and pull, and it's a round head design with vacuum surface treatment so corrosion isn't the usual headache it can be with cheaper chrome-plated ones.
These work with most industrial air tools and pneumatic systems that follow DIN or ANSI standard, but don't use them for high-pressure hydraulic lines because the release mechanism isn't that; we usually have stock on the KIV model numbers, but confirm lead time if you need over 500 units or so.
Surface finish is actually smoother than most stainless couplings we've handled, and what that means in practice is fewer leaks at the connection point—better than standard brass for longevity in wet environments, though it's heavier (about 130 grams per piece, give or take).
Also, one thing buyers don't always ask about is the internal seal material—these come with NBR O-rings standard, but our company can swap for Viton if your applicaion involves higher temps or chemcial exposure (usually adds a week to delivery).
The K2 spec refers to a standard size in our range. For the exact dimensions like thread size and length, please check our spec sheet or let me know your needs, as it varies by connection.
This coupling is made from stainless steel with a vacuum treatment surface finish, which improves corrosion resistance and smooth operation. It’s not hardened like tool steel, but it’s built for reliable use in industrial tools.
For the KIV model, our MOQ is typically 100 pieces per order. We can adjust for bulk or sample requests, so just reach out if you need a smaller trial batch.
Yes, we can supply a material test report for the stainless steel and a certificate confirming compliance with DIN standards upon request. Just let us know when placing your order.
Each coupling is packed in a carton as standard, which protects against dust and minor impacts. For long-term storage, keep them in a dry environment to avoid moisture, as the vacuum treatment doesn’t seal out humidity completely.
