MIDWEST FASTENER CORP
MIDWEST FASTENER CORP 66541 1/4IP Zinc Plated Steel Female Air Hose Couplers 4PK
Pack of four zinc-plated steel female air hose couplers with 1/4 inch iron pipe threads for quick-connect pneumatic fittings
- Quick-connect air hose fitting with threaded 1/4FIP and 1/4IP ends
- Steel construction resists wear in demanding pneumatic applications
- Four-pack provides spare couplers for multiple tools or workstations
- Female iron pipe thread ensures secure connection to standard air hoses
- Manufacturer direct shipping on orders of $75 or more
Quick-connect air hose couplers
The Midwest Fastener 66541 couplers provide a quick-connect fitting for compressed air lines. Each piece accepts a 1/4 inch female iron pipe thread on one end and a 1/4 inch iron pipe thread on the other. The four-pack supplies enough fittings for a small workshop or multiple tool stations. They are built for standard air hose and tool connections.
Steel construction for shop durability
Zinc-plated steel resists corrosion from moisture in compressed air systems. The metal body handles typical shop air pressures without deformation. No moving seals or plastic parts are present that could wear out under normal cycling. The simple threaded design keeps airflow unrestricted.
Threaded ends suit fixed piping or tool whips
The 1/4FIP and 1/4IP threads match common North American compressor outlets and tool inlets. Installers can thread them directly into hard-piped drops or onto flexible hose ends with matching fittings. The female iron pipe side accepts standard male pipe threads without adapters. Buyers needing push-to-connect or industrial interchange profiles will need a different coupler style.
Highlights
- Quick-connect air hose fitting with threaded 1/4FIP and 1/4IP ends
- Steel construction resists wear in demanding pneumatic applications
- Four-pack provides spare couplers for multiple tools or workstations
- Female iron pipe thread ensures secure connection to standard air hoses
- Manufacturer direct shipping on orders of $75 or more
Specifications
| Brand | MIDWEST FASTENER |
|---|
Questions about this item
How do I install the 1/4FIP end without stripping the threads?
Wrap the 1/4FIP threads with PTFE tape or pipe sealant, then hand-tighten into the matching port before a final quarter-turn with a wrench; over-tightening the steel body is the step most people get wrong.
What maintenance will these couplers need over time?
Periodically lubricate the internal ball-lock mechanism with light pneumatic-tool oil and inspect the zinc-plated steel for corrosion; replace any coupler that shows pitting or fails to latch securely.
What limit appears first during continuous high-flow use?
The 1/4-inch threaded bore restricts maximum airflow, so sustained high-demand tools will hit a pressure-drop limit at the fitting before the steel body reaches any thermal or structural limit.
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