20611 Metric Female 60-Degree Cone Hydraulic Hose Fittings (Swivel Nut)

Metric female 60-degree cone hydraulic hose fittings are the swivel-nut end for connections onto male studs with a 60-degree external cone: the female nut turns freely on the hose tail, so you tighten onto the cone without twisting the hose. The 20611 series covers 17 part numbers from DN6 (-04) to DN40 (-24), with female metric threads from M14x1.5 to M52x2 and a 60-degree cone sealing seat, designed for wire-braided hose. If your machine connects hoses onto 60-degree cone male studs – or your current female end is the wrong seal family for those studs – this page gives you the full reference: dimensions, part numbers, the D and T suffix rules and OEM options.

Why Choose These 60-Degree Cone Female Fittings

• The matching end for 60-degree cone male studs. The 60-degree cone seat seals metal-to-metal onto a male stud with a 60-degree external cone – the seal mode of the 10611-type male family.
• Swivel nut that turns freely. The nut rotates on the hose tail, so the connection tightens without winding the hose or fighting the assembly position.
• Two pitch options on key sizes. D-suffix rows give the fine-pitch alternative (for example M30x1.5 alongside M30x2), so you can match the exact pitch your port uses.
• OEM-ready. Laser marking, custom plating, material test reports and batch traceability, with 20611 and -T constructions available.

Standards and traceability. Threads are ISO 724 metric threads. The series follows the metric female 60-degree cone configuration used across the widely adopted Chinese 10-series hose fitting numbering system (the female companion to 60-degree cone male studs). Fittings are designed to pair with wire-braided hose built to EN 853 1SN/2SN or SAE 100 R1AT/R2AT performance classes. Dimensional inspection reports and material test certificates are available for OEM gate checks.

Which Seal Family Is Your Male Stud? Flat Seat, 60-Degree Cone or 24-Degree Cone

The female end must match the sealing geometry of the male stud it connects to. This series seals on a 60-degree cone. If your male stud is flat-faced or carries a 24-degree cone, this fitting is not the one – the seal faces will not mate even when the thread fits.

Check the male stud before ordering: a pointed cone at roughly 60 degrees (30 degrees per flank) takes this 20611 series; a flat face takes the flat-seat series; a DIN-style 24-degree cone takes the 24-degree cone series. When in doubt, send a photo of the male stud and the old female end, and we will confirm the correct family the same day.

The swivel nut, briefly

Like the flat-seat female series, the 20611 carries a swivel nut that rotates on the hose tail. You hold the hose where you routed it and turn only the nut onto the cone stud. No hose twisting, no re-routing after tightening, and the cone seal seats cleanly without side load.

What do the D and T suffixes mean?

• T marks the alternate body and nut construction shown on the 20611-T drawing, used for the sizes listed with it.
• D marks a fine-pitch thread alternative on the same nominal size. For example 20611-30-10D is M30x1.5 while 20611-30-12 is M30x2; 20611-27-10DT is M27x1.5 (fine pitch, T construction) while 20611-27-10T is M27x2.
• Order the exact suffix combination printed on your drawing or the old fitting, and we will confirm the construction before dispatch.

20611 Series Technical Specifications

Materials and processing

• Body material options: high-strength carbon steel (20#/35#/45# grades, cold-formed or machined) as standard; stainless steel 304 or 316L available for corrosive or wash-down environments.
• Surface treatment: zinc plating as standard; yellow, white or black zinc, zinc-nickel and Dacromet coating available for higher salt-spray requirements.
• Heat treatment: hardness and case depth are controlled per drawing to keep the thread, the cone seat and the nut fatigue-resistant; typical surface hardness range HRC 20-28 (confirm the exact code on your drawing or PO).

Full dimension and part number table

All linear dimensions are in millimeters. E = thread, DN = hose bore, A and C = lengths per the supplier drawing, S2 = swivel nut hex across flats. Suffixes: T = alternate body/nut construction, D = fine-pitch thread alternative, DT = fine-pitch with T construction.

Full dimensioned CAD drawings are available on request so your engineers can verify every length and the cone seat geometry before you commit a batch.

Working pressure: the honest answer engineers need

A crimp hose assembly fails at its weakest link, so the rating of a 20611 fitting depends on the hose you pair it with and the crimp quality. Wire-braided hydraulic hose in this size range typically operates between roughly 80 and 400 bar depending on bore size and construction (1SN or 2SN). Send us your hose specification and we will confirm the working pressure, burst margin and the recommended ferrule for your exact hose brand – the check is free and takes one message. For derating at elevated temperature, follow the hose manufacturer’s pressure-temperature curve, because the rubber cover and tube lose capacity above about +100°C.

Which Fitting Series Do You Need: 20611 (Braided) or 20612 (Spiral)?

The part number changes with the hose construction, because the barb geometry and the crimp parameters are different.

When in doubt, check the hose label: braided hose is marked 1SN, 2SN or R1AT, R2AT; spiral hose is marked 4SP, 4SH or similar.

Part Number Decoder and How to Order

The 20611 part number carries the whole specification, so purchasing can copy it straight into a PO:

20611 – 30 – 12D

• 20611 = metric female 60-degree cone swivel series for braided hose
• 30 = thread nominal size (here M30)
• 12 = hose dash size (here DN20, 3/4-inch class bore)
• D = fine-pitch thread (M30x1.5 instead of M30x2); T = alternate construction; DT = both

Because one thread size can serve several hose bores and two pitches, always quote the thread pitch and the dash size together. If you are replacing an existing fitting, send us a photo of the nut end, the hose side and the male cone stud it connects to, and we will confirm the matching part number the same day. This service is the fastest way to convert an unreadable old part number into a confirmed 20611 order – and it also tells you whether your connection is 60-degree cone, flat-seat or another family.

Assembly Guide: Four Steps to a Reliable Crimp

These fittings are crimp-style hose ends with a swivel nut on the port end. Follow the four steps below on every assembly.

Step 1 – Cut the hose square. Use a sharp hose cutter or cutoff saw. A square, clean cut lets the ferrule grip the cover evenly. A beveled or ragged cut is the most common cause of pull-out failures.

Step 2 – Prepare the insert depth. Push the fitting tail into the hose until it bottoms firmly against the internal shoulder. The hose end must sit at the full insertion depth, not short, or the crimp zone will be wrong.

Step 3 – Lubricate and insert. Apply a thin film of assembly lubricant to the hose bore and the barb. Push the fitting in with a steady twisting motion until it bottoms out, then wipe away excess lubricant. Keep the 60-degree cone seat clean and dry.

Step 4 – Crimp and verify. Crimp the matched ferrule with the hose manufacturer’s crimp specification. After crimping, always measure the crimp outside diameter with a caliper and compare it with the crimp table. The measured value must sit inside the allowed tolerance band. If it is out of tolerance, do not put the assembly into service – cut it off and re-crimp with a corrected setting.

Warnings: three mistakes that cause leaks and blow-outs

• Never mix seal families. A 60-degree cone seat female must go onto a 60-degree external cone male; flat-face males take the flat-seat series and 24-degree cone males take their own series.
• Never put a seal washer or O-ring into a 60-degree cone joint that is designed to seal metal-to-metal. Extra material between the cone faces prevents seating and guarantees a leak.
• Never put PTFE tape or sealant on the thread, and never force the swivel nut when the cone is not aligned – clean seating needs a straight approach.

Typical Applications

The 60-degree cone female swivel appears wherever hoses connect onto male studs with a 60-degree external cone, and the installer needs the hose to stay put while the nut turns:

• Hose assemblies onto pump, valve and cylinder ports with 60-degree cone male studs
• Machinery built to Chinese or Asian cone-seal conventions, and its service networks
• Machine tools, presses, plastic and die-casting machinery
• Construction, mining and agricultural equipment
• Hydraulic power units and general industrial hydraulics

Wherever the mating stud carries a 60-degree external cone, the 20611 series is the female hose end – with the swivel nut keeping your routing exactly where you set it.

OEM Customization and Quality Traceability

For equipment builders and large maintenance programs, the 20611 series can be adapted to your exact drawing and your traceability rules.

Customization options

• Thread and geometry: special threads, pitch variants, modified lengths and non-standard configurations machined to your drawing or to a sample.
• Surface treatment: zinc-nickel, Dacromet or other coatings for higher salt-spray grades; we confirm the achieved test hours for the coating you choose instead of quoting a generic number.
• Laser marking: your logo, part number and batch or date code laser-marked on the nut or hex for full field traceability.
• Material: stainless steel 304/316L versions for corrosive media or wash-down duty.
• Packaging and kitting: custom labels, barcodes, poly-bag or box quantities, and complete hose assembly kitting.

Quality documentation

• Batch number traceability: every order carries a batch code that links back to the production records.
• Material test reports (MTR) available for carbon steel and stainless batches.
• Dimensional inspection reports for OEM gate checks.
• Third-party inspection (BV, SGS or similar) can be arranged before shipment.

Samples and MOQ. Samples for stock sizes ship fast, and we keep low MOQs for standard part numbers so distributors can test the series without tying up capital. OEM programs can move to scheduled deliveries once the drawing is approved.

Packaging and Logistics

Standard export packing: fittings are individually poly-bagged or boxed to protect threads, cone seats and swivel nuts, then packed in export cartons labeled with part number, quantity and batch code. Custom labeling, kitting and barcode requirements are available. Exact carton quantity, gross weight and CBM are confirmed on the packing list for every order.

FAQ

Q: What is a metric female 60-degree cone hydraulic hose fitting? A: It is a crimp-style hose end with a female metric thread and a 60-degree cone sealing seat, fitted with a swivel nut that turns freely on the hose tail. It connects onto a male stud with a 60-degree external cone.

Q: What is the difference between 60-degree cone and flat-seat females? A: The sealing geometry. This 20611 series seals on a 60-degree cone onto a cone male stud; the 20211 flat-seat series seals on a flat face against a flat-face male with a seal element. The two families are not interchangeable.

Q: What does the swivel nut do? A: The nut rotates on the hose tail, so you tighten the connection by turning only the nut. The hose stays where you routed it, without twisting.

Q: What do the D and T suffixes mean? A: T marks an alternate body and nut construction; D marks a fine-pitch thread alternative on the same nominal size (for example M30x1.5 instead of M30x2); DT is the fine-pitch version with the T construction. Order the exact suffix from your drawing.

Q: What is the difference between 20611 and 20612 series? A: 20611 is for wire-braided hose (1SN/2SN or R1AT/R2AT) and 20612 is for spiral hose (4SP/4SH style).

Q: Do I need thread tape or sealant? A: No. The 60-degree cone seals metal-to-metal. Tape on a straight metric thread adds nothing and can contaminate the system.

Q: What is the working pressure of these fittings? A: The assembly rating depends on the hose, the ferrule and the crimp quality. Send your hose specification and we will confirm the working pressure and the recommended ferrule for your combination.

Q: Can you make custom part numbers with my logo? A: Yes. We offer laser marking, custom plating, stainless versions and special dimensions, with MTR and batch traceability for OEM programs.

Order Today: 60-Degree Cone Female Fittings with Confirmed Fit

Every 20611 metric female 60-degree cone hydraulic hose fitting in this range is made to controlled dimensions, inspected before packing and backed by batch traceability. Send us your hose type, thread size and pitch, and a photo of the male cone stud it connects to, and you will get a confirmed part number, the right suffix (D, T or DT if needed), a delivery date and a quote within one working day. Request samples first and test the swivel on your own bench – turning the nut onto the cone instead of twisting the hose is the fastest way to feel the difference. We make sure the fitting, ferrule and hose work as one leak-free assembly.