Account
Inquiry
Getting a hydraulic system to hold pressure under heavy load isn't about the hose alone — it's the nipples and fittings that make or break every connection, and mismatched threads are a fast track to leaks or catastrophic failure. We can supply these form 1/4 inch up to 3 inches in standard SAE, BSP, BSPT, JIC, ORFS, or NPT thread forms, with JIS and metric also available for non-standard ports. Teh hex head design gives you solid wrench engagement for torquing down without rounding — a detail you'll appreciate after your third re-tightening on a stubborn port.
Medium carbon steel is what we use here — it's better than low-carbon for thread strength under cyclic loading but doesn't go brittle like high-carbon alloys in cold environments. Surface treatment is zinc plating, what most people call galvanized, and it comes in silver (clear) or yellow (iridescent) depending on your corrosion requirement. The yellow passivate actually holds up slightly better in salt spray conditions based on our in-house testing, so keep that in mind if the system sees road splash or chemical washdowns.
These are all female connections with internal threads cut to either DIN, ANSI, or JIS standards — we'll confirm which thread standard your application needs before quoting. 2 to 3 weeks lead time is typical for bulk orders of 500 pieces or so, though we can push to 30 days for runs above 2000 units where custom-length thread engagement is specified. The materail hardness lands around 150-180 HB after the zinc bake cycle, which is tough enough for the ORFS face seal setups most buyers go with for high-vibration lines.
Customization is where it actually gets interesting — we've run smaller batches with reduced hex dimensions for tight manifold clearance, and one buyer wanted 10-inch nipples with both ends threaded BSPT to bridge two hard lines. Drawings in DXF or PDF will get you a tighter quote than just describing the part, honestly. Don't expect the standard 30-day lead if you're asking for something like a metric/non-standard pitch combination; that usually pushes to 45 days because of thread gauge procurement.
Packaing is straightforward — each nipple gets a plastic sleeve to protect the threads, then bundling in cartons of 50-100 units depending on size, and the whole pallet is strapped and c container loading. MOQ is 100 pieces per thread size and standard combination, though we'll sometimes bend that for a repeat order at the same spec. The one thing this won't do is handle potable water or food-contact lines unless you specifically request a chrome plating over the galvanizing — the zinc will leach, and that's not recoverable.
MOQ depends on the thread standard and size; for standard sizes like 1/4" to 1", it's typically 500 pieces per thread type. For larger sizes or less common threads like ORFS, MOQ can go up to 200 pieces.
Yes, we can supply a mill test certificate for the steel batch upon request. Just let us know when placing your order.
Standard lead time is 30 days from order confirmation, even for mixed thread standards. If you need it faster, we might be able to rush for a small fee, depending on current workload.
Yes, both colors are available. Silver is the standard finish, and yellow costs about 5% more per piece due to the extra plating step. No impact on lead time.
We pack them in plastic tubes first, then carton boxes, and finally on wooden pallets for stability. This keeps the threads and hex heads from getting banged up in transit.
