{"id":5265,"date":"2026-09-19T03:35:59","date_gmt":"2026-09-19T03:35:59","guid":{"rendered":"https:\/\/www.henghuahose.com\/?post_type=product&p=5265"},"modified":"2026-09-19T03:36:01","modified_gmt":"2026-09-19T03:36:01","slug":"metric-male-double-use-for-60-degree-cone-seat-or-bonded-seal-adapter-1m","status":"publish","type":"product","link":"https:\/\/www.henghuahose.com\/ru\/product\/metric-male-double-use-for-60-degree-cone-seat-or-bonded-seal-adapter-1m\/","title":{"rendered":"1M Metric Male Double Use for 60 Degree Cone Seat or Bonded Seal – 1M Adapter"},"content":{"rendered":"
The 1M adapter is a straight male stud adapter with a metric thread at each end and a hex in the middle of the body. Each stud end seals either on a 60\u00b0 metal cone seat or on a bonded seal washer pressed against a flat machined face. That double use makes the 1M adapter one machined part that covers the two metric port sealing methods used on most European hydraulic equipment.<\/p>\r\n\r\n\r\n\r\n
Core Advantages<\/h2>\r\n\r\n\r\n\r\n
\r\n
One stud end covers two sealing methods: a 60\u00b0 metal cone seat and a bonded seal washer on a flat face.<\/li>\r\n\r\n\r\n\r\n
Twenty-two part numbers from M10X1 through M30X2, including stepped reducers and fine pitch variants.<\/li>\r\n\r\n\r\n\r\n
Cone geometry follows DIN 3861; the bonded seal form follows DIN 3852-2 with a DIN 7603 washer.<\/li>\r\n\r\n\r\n\r\n
Machined from bar stock on CNC lathes, with thread gauges and dimensional checks applied batch by batch.<\/li>\r\n\r\n\r\n\r\n
Body options of carbon steel with trivalent chromium zinc plating, or 304 \/ 316 stainless steel.<\/li>\r\n\r\n\r\n\r\n
A single hex across the body keeps this hydraulic adapter within standard wrench sizes.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
1. What a 1M Adapter Does<\/h2>\r\n\r\n\r\n\r\n
A 1M fitting is a hydraulic adapter that joins two metric ports through a male stud end at each side of the body. The part carries a 60\u00b0 cone seat at the nose and a flat seating face under the hex, so the same stud end is accepted by two different port designs. A 1M adapter therefore replaces two separate adapter families on a machine that mixes cone-seated and flat-faced metric ports.<\/p>\r\n\r\n\r\n\r\n
The sealing end must match its mating port exactly, because that match is the precondition for eliminating leakage at the joint. A metric stud end designed for a 60\u00b0 cone will not seal correctly in a port that expects an elastomer seal in a machined recess, and a bonded seal washer will not seal in a port whose face is recessed for an O-ring. The 1M adapter is built for the two port styles that present either a cone seat or a plain flat face, and it is the metric adapter to specify when a machine mixes the two.<\/p>\r\n\r\n\r\n\r\n
The sealing principle has two branches. On a cone-seated port the 60\u00b0 nose seats metal-to-metal on the matching 60\u00b0 cone of the port, following the cone geometry described in DIN 3861 for metric compression couplings with a cutting ring. On a flat-faced port a bonded seal washer, a metal washer with an elastomer insert as described in DIN 7603, is trapped between the hex face of the adapter and the flat port face; the elastomer insert provides the seal while the metal washer carries the load. DIN 3852-2 describes metric stud ends that seal with or without an elastomer seal, which is the stud end form used here. Because the thread is parallel, it does not create the seal; it only clamps the faces together.<\/p>\r\n\r\n\r\n\r\n
2. 1M Specifications<\/h2>\r\n\r\n\r\n\r\n
2.1 Connection 1 – Metric male stud end for 60\u00b0 cone seat or bonded seal<\/h3>\r\n\r\n\r\n\r\n
\r\n
Thread standard and family: metric parallel thread to the metric stud end practice described in DIN 3852-2.<\/li>\r\n\r\n\r\n\r\n
Thread size range: M10X1 through M30X2, including M27X2 and the fine pitch M22X1.5, M27X1.5 and M30X1.5 variants.<\/li>\r\n\r\n\r\n\r\n
Gender: male.<\/li>\r\n\r\n\r\n\r\n
Sealing method: 60\u00b0 metal cone seat at the nose, or a bonded seal washer to DIN 7603 on the flat face under the hex.<\/li>\r\n\r\n\r\n\r\n
Mating port standard: a port machined with a 60\u00b0 cone seat per DIN 3861, or a flat-faced metric port that accepts a bonded seal washer per DIN 3852-2.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
This first stud end is the E end in the dimension table; its thread is the first size code and its threaded length is dimension A.<\/p>\r\n\r\n\r\n\r\n
2.2 Connection 2 – Metric male stud end for 60\u00b0 cone seat or bonded seal<\/h3>\r\n\r\n\r\n\r\n
\r\n
Thread standard and family: metric parallel thread to the metric stud end practice described in DIN 3852-2.<\/li>\r\n\r\n\r\n\r\n
Thread size range: M10X1 through M30X2, in the printed combinations matched to the E end.<\/li>\r\n\r\n\r\n\r\n
Gender: male.<\/li>\r\n\r\n\r\n\r\n
Sealing method: 60\u00b0 metal cone seat at the nose, or a bonded seal washer to DIN 7603 on the flat face under the hex.<\/li>\r\n\r\n\r\n\r\n
Mating port standard: a 60\u00b0 cone seat per DIN 3861 or a flat-faced bonded seal port per DIN 3852-2.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
The second stud end is the F end. Its thread is the second size code and its threaded length is dimension B. This straight thread adapter is a genuine two-port part: both ends are live connections and both must be sealed at installation. A stepped 1M such as 1M-16-18 joins a M16X1.5 port to a M18X1.5 port without an extra reducer, and works as a bonded seal adapter where both ports are flat-faced.<\/p>\r\n\r\n\r\n\r\n
2.3 Construction and Materials<\/h3>\r\n\r\n\r\n\r\n
The body is machined from bar stock on CNC lathes in one piece, so no brazed or welded joint sits in the pressure path. The hex is produced in the same operation that turns the threads and the 60\u00b0 cones, which keeps the cones concentric with the thread axis. Each cone is checked against the drawing, because cone angle and cone diameter together decide whether metal-to-metal contact is complete. The flat face under the hex is machined to give the bonded seal washer a full, uninterrupted bearing surface.<\/p>\r\n\r\n\r\n\r\n
Body material options are carbon steel, 304 stainless steel, 316 stainless steel and brass. Carbon steel bodies are supplied with trivalent chromium zinc plating (Cr3+) for general hydraulic service, and zinc-nickel plating is available for more demanding conditions. Stainless steel bodies are supplied unplated, and plating specification is agreed per order. Seal material for the bonded seal washer is selected from NBR, FKM and EPDM to match the fluid and the temperature, with the metal shell of the washer matched to the port face and the fluid.<\/p>\r\n\r\n\r\n\r\n
2.4 Pressure and Temperature<\/h3>\r\n\r\n\r\n\r\n
Working pressure for the 1M adapter sizes is confirmed per order by HENGHUA engineering, based on the thread size, sealing method and material selected. The printed dimension chart for this series carries no pressure column, so no per-size rating is published on this page. What the joint holds depends on the cone contact or washer compression actually achieved in the port and on the port material.<\/p>\r\n\r\n\r\n\r\n
Temperature capability follows the seal material rather than the body. NBR suits approximately -30\u00b0C to +100\u00b0C, FKM approximately -20\u00b0C to +200\u00b0C and EPDM approximately -40\u00b0C to +120\u00b0C. Where the part runs on a cone seat only and no elastomer is present, the limit is set by the fluid and by the mechanical properties of the body material, which HENGHUA confirms per order.<\/p>\r\n\r\n\r\n\r\n
2.5 Part Number and Dimension Table<\/h3>\r\n\r\n\r\n\r\n
The table below is reproduced in full from the printed dimension chart for this hydraulic adapter series. All dimensions are in millimetres.<\/p>\r\n\r\n\r\n\r\n
What each column means<\/strong><\/p>\r\n\r\n\r\n\r\n
\r\n
PART NO.<\/strong> – the ordering code for the row. The digits after the series prefix are the size of the first stud end; a second pair of digits, where present, is the size of the second stud end.<\/li>\r\n\r\n\r\n\r\n
E<\/strong> – the thread of the first stud end, given as nominal diameter by pitch, for example M10X1.<\/li>\r\n\r\n\r\n\r\n
F<\/strong> – the thread of the second stud end, in the same notation as E. Where E and F are identical the adapter joins two ports of the same size.<\/li>\r\n\r\n\r\n\r\n
A<\/strong> – the threaded length of the E end in millimetres, measured from the nose.<\/li>\r\n\r\n\r\n\r\n
B<\/strong> – the threaded length of the F end in millimetres, measured from the nose.<\/li>\r\n\r\n\r\n\r\n
L<\/strong> – the overall length in millimetres, including both threaded ends and the hex.<\/li>\r\n\r\n\r\n\r\n
S1<\/strong> – the width across the hex flats in millimetres, which is the wrench size for the part.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Thread size and dash chart<\/strong><\/p>\r\n\r\n\r\n\r\n
\r\n
\r\n\r\n
\r\n
Nominal size<\/th>\r\n
Thread of the first stud end<\/th>\r\n
Part numbers in this range<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
3. How to Read a 1M Part Number<\/h2>\r\n\r\n\r\n\r\n
A 1M part number has up to four elements, read from left to right.<\/p>\r\n\r\n\r\n\r\n
\r\n
Series prefix 1M<\/code><\/strong> – a metric male stud end that seals on a 60\u00b0 cone seat or on a bonded seal. The prefix fixes the thread family and the sealing principle before you read the size.<\/li>\r\n\r\n\r\n\r\n
First size code<\/strong> – the nominal size of the first stud end, the E end. 10<\/code> means M10X1, 12<\/code> means M12X1.5 and 22<\/code> means M22X1.5.<\/li>\r\n\r\n\r\n\r\n
Second size code (optional)<\/strong> – the size of the second stud end, the F end. When it is absent, both ends are the same size and the part is a straight connector rather than a reducer.<\/li>\r\n\r\n\r\n\r\n
Suffix D<\/code> (optional)<\/strong> – the fine pitch variant. A D<\/code> part uses a 1.5 mm pitch where the plain part uses a 2 mm pitch, so 1M-27 is M27X2 while 1M-27D is M27X1.5.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Worked example: 1M-22-27D<\/strong>. The prefix 1M<\/code> denotes a metric male stud end with 60\u00b0 cone or bonded seal sealing. The first size code 22<\/code> sets the E end at M22X1.5 with a threaded length A of 14 mm. The second size code 27<\/code> sets the F end at M27X1.5 with a threaded length B of 16 mm, and the D<\/code> suffix confirms the 1.5 mm pitch version of the M27 thread.<\/p>\r\n\r\n\r\n\r\n
4. Installation and Fitment<\/h2>\r\n\r\n\r\n\r\n
A 1M adapter is a straight thread adapter, so it seals at the cone or at the washer, never at the thread, and installation practice concentrates on the two seating faces. Start each stud end by hand to confirm that the threads engage without resistance, then bring the part down until the nose or the hex face contacts its mating surface. Tighten until the cone makes firm metal-to-metal contact, or until the bonded seal washer is evenly compressed, without distorting the hex, the cone or the port face. HENGHUA confirms the recommended tightening torque for your thread size, body material and port material per order.<\/p>\r\n\r\n\r\n\r\n
Prepare the threads and seating faces before assembly. Blow out the port, remove swarf and old sealant residue, and check the cone for nicks and the flat face for scoring. A burr on a cone or a scratch across a flat face creates a leak path that no amount of torque will close. If the port has a 60\u00b0 cone seat, the cone on the stud end does the sealing and no washer is fitted; if the port has a plain flat face, a DIN 7603 washer of the correct inside and outside diameter is fitted under the hex. The washer must never be omitted, and a thread sealant must never be used to compensate for a missing or wrong washer, because a liquid sealant cannot reproduce the controlled compression of an elastomer insert. A bonded seal washer is single-use, and a cone that has been crushed or marked is replaced with the adapter rather than dressed with a file.<\/p>\r\n\r\n\r\n\r\n
Assembly steps<\/strong><\/p>\r\n\r\n\r\n\r\n\r\n
Confirm the port type at both ends: 60\u00b0 cone seat, or flat face for a bonded seal washer.<\/li>\r\n\r\n\r\n\r\n
Select the matching bonded seal washer for any flat-faced end and check its inside and outside diameter.<\/li>\r\n\r\n\r\n\r\n
Clean both ports, the threads, the nose cones and the seating faces, and confirm they are free of swarf and old sealant.<\/li>\r\n\r\n\r\n\r\n
Start the first stud end by hand and turn it in until it seats, keeping the body axis aligned with the port axis.<\/li>\r\n\r\n\r\n\r\n
Tighten to the torque confirmed for the thread size, material and port material, without over-compressing the washer or deforming the cone.<\/li>\r\n\r\n\r\n\r\n
Repeat for the second end, then pressurise the circuit and check both joints for weeping before returning the machine to service.<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n
Common fitment errors and their symptoms<\/strong><\/p>\r\n\r\n\r\n\r\n
\r\n
Fitting a washer to a cone-seated port, or leaving the washer on when the port is recessed for an O-ring: the joint leaks at low pressure and the washer extrudes.<\/li>\r\n\r\n\r\n\r\n
Omitting the washer on a flat-faced port: a steady weep that increases with pressure and temperature.<\/li>\r\n\r\n\r\n\r\n
Over-torquing to stop a leak caused by a damaged cone: the hex distorts, the cone work-hardens and the leak continues.<\/li>\r\n\r\n\r\n\r\n
Using a washer with the wrong outside diameter: the washer shifts off centre during tightening and the elastomer insert is cut.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
5. Applications and Industries<\/h2>\r\n\r\n\r\n\r\n
Application tags for this series are hydraulic systems, water jetting, oil and gas, industrial equipment, construction machinery, agriculture, marine and material handling.<\/p>\r\n\r\n\r\n\r\n
In industrial equipment and machine tools, hydraulic power units and manifold blocks often mix port styles, because the manifold is designed to one standard and the purchased components to another. The 1M adapter then joins a 60\u00b0 cone-seated port to a flat-faced bonded seal port, instead of a cone adapter plus a flat-face adapter plus a reducer, which is a practical reason to keep this metric adapter on a maintenance shelf.<\/p>\r\n\r\n\r\n\r\n
In construction machinery and agriculture, mobile valve blocks, cylinder ports and pump housings commonly use metric stud ends with bonded seals, because a flat face is easy to machine and easy to clean on site. Where the same machine also carries 60\u00b0 cone ports on the European side of the build, the double use stud end covers both.<\/p>\r\n\r\n\r\n\r\n
In water jetting and marine service, the bonded seal adapter in stainless steel is chosen where wash-down, spray or salt exposure would attack a plated carbon steel part, and the washer material is matched to the fluid, with FKM or EPDM selected where NBR is not suitable.<\/p>\r\n\r\n\r\n\r\n
6. Replacement and Cross-Reference Guide<\/h2>\r\n\r\n\r\n\r\n
Cross-reference for this family is organised by standard, thread and sealing method, never by brand. To replace this bonded seal adapter, identify the port at each end rather than the part that was removed. The metric adapter you need is defined by the two ports, not by the marking on the old part.<\/p>\r\n\r\n\r\n\r\n
Measure these three things<\/strong><\/p>\r\n\r\n\r\n\r\n\r\n
Thread<\/strong> – measure the outside diameter over the thread and the pitch, and confirm the thread is parallel rather than tapered. M22X1.5 and M22X2 look similar but will not interchange, and the D<\/code> suffix separates the two.<\/li>\r\n\r\n\r\n\r\n
Seal type at the port<\/strong> – look for a 60\u00b0 cone seat inside the port, a plain flat face for a bonded seal washer, or a machined recess that takes an O-ring. The seal type decides the family, not the thread alone.<\/li>\r\n\r\n\r\n\r\n
Seat angle and face depth<\/strong> – confirm the 60\u00b0 angle with a protractor and check that the flat face is genuinely flat and not recessed.<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n
Where the port carries an O-ring in a machined recess and the thread is metric, the correct family is the ISO 6149 O-ring stud end, covered in this range by the 1H series, with the heavy duty S series equivalent in 1H-H. Where the port carries a G thread to ISO 228-1 with an elastomer seal in a recess to ISO 1179-1, the correct family is a BSPP O-ring stud end such as the 1G series. The 1M series has no light and heavy duty split of its own, because the sealing method is the cone or the washer rather than a recessed O-ring; the split that matters here is the pitch split marked by the D<\/code> suffix. The same stud end also appears in this range as a blanking plug, the 4M plug, so a maintenance kit holding both covers an open joint and the port left behind when a line is removed.<\/p>\r\n\r\n\r\n\r\n
7. Ordering, Packaging and Delivery<\/h2>\r\n\r\n\r\n\r\n
To order this straight thread adapter, give five pieces of information: the series code 1M<\/code>, the full part number including any second size code and the D<\/code> suffix, the thread size of each end, the seal material for the bonded seal washer if one is required, and the body material and plating.<\/p>\r\n\r\n\r\n\r\n
For a same-size connector, a single size code is enough, for example 1M-16 for a M16X1.5 to M16X1.5 part. For a reducer, both codes are required, for example 1M-18-22 for M18X1.5 to M22X1.5, or 1M-26-30D for the fine pitch M26X1.5 to M30X1.5 combination. If you are unsure whether your port uses a 2 mm or a 1.5 mm pitch, send the port drawing rather than the old part number. Bonded seal washers are ordered as separate items, so that the washer material and the metal shell can be matched to your fluid and spares can be stocked for planned maintenance.<\/p>\r\n\r\n\r\n\r\n
Packaging is arranged for two routes. Distributor orders are packed in labelled cartons with part number, thread size and quantity printed on the box, so parts go straight onto a shelf. OEM and direct-to-line orders are packed in bulk and labelled to the customer reference. Sample orders are accepted so that a new size can be validated against the port before a production quantity is released. Lead time is confirmable per order, because it depends on the size, material, plating and quantity. Every batch is checked against the drawing with thread gauges before packing.<\/p>\r\n\r\n\r\n\r\n
8. FAQ<\/h2>\r\n\r\n\r\n\r\n
What is the difference between a straight-thread O-ring seal and a tapered pipe thread?<\/strong><\/p>\r\n\r\n\r\n\r\n
A tapered pipe thread seals by wedging the thread flanks against each other as the joint is tightened, so the thread itself is the seal. A straight-thread joint such as the metric stud end on this part seals on a separate element, either a 60\u00b0 metal cone seat or a bonded seal washer, and the parallel thread only clamps the faces together.<\/p>\r\n\r\n\r\n\r\n
Can BSP and NPT be interchanged?<\/strong><\/p>\r\n\r\n\r\n\r\n
No. BSP threads are Whitworth forms with a 55\u00b0 thread angle, covered for the parallel family by ISO 228-1, while NPT is a tapered thread with a 60\u00b0 thread angle. They differ in diameter and in threads per inch, and a G thread will not seat correctly in an NPT port. Forcing one into the other damages both threads, and any joint that appears to hold will not do so reliably under pressure.<\/p>\r\n\r\n\r\n\r\n
How do I identify the correct 1M size?<\/strong><\/p>\r\n\r\n\r\n\r\n
Measure the thread outside diameter and pitch at each port, confirm that the face presents a 60\u00b0 cone or a flat face for a bonded seal, then read the size code from the table in 2.5. The first size code is the E end and the second is the F end. Take particular care with M22 and M27, where both a 2 mm and a 1.5 mm pitch exist in this range.<\/p>\r\n\r\n\r\n\r\n
What seal material should I select for my fluid and temperature?<\/strong><\/p>\r\n\r\n\r\n\r\n
Select the bonded seal washer elastomer from NBR, FKM or EPDM. NBR suits mineral hydraulic oil over approximately -30\u00b0C to +100\u00b0C, FKM extends the range to approximately -20\u00b0C to +200\u00b0C and handles a wider spread of aggressive fluids, and EPDM covers approximately -40\u00b0C to +120\u00b0C and is the usual choice for water and many water-based fluids. EPDM is not compatible with mineral oil, so it is selected only when the fluid calls for it.<\/p>\r\n\r\n\r\n\r\n
How is the working pressure of this fitting determined?<\/strong><\/p>\r\n\r\n\r\n\r\n
Working pressure for these sizes is confirmed per order by HENGHUA engineering, based on the thread size, sealing method and material selected. The printed dimension chart carries no pressure column, so no per-size rating is published here. In practice the limit is set by the cone contact or washer compression actually achieved in the port, by the port material, and by the body material and plating.<\/p>\r\n\r\n\r\n\r\n
What is the minimum order quantity and can I get samples?<\/strong><\/p>\r\n\r\n\r\n\r\n
Minimum order quantity is confirmable per order and depends on the size, the body material and whether the part is a standard row or a drawing-based special. Samples are available so that a new size, material or sealing arrangement can be validated against the actual port before a production quantity is committed.<\/p>\r\n\r\n\r\n\r\n
When should I use the 60\u00b0 cone seat and when should I use a bonded seal on the same stud end?<\/strong><\/p>\r\n\r\n\r\n\r\n
Use the 60\u00b0 cone when the port is machined with a matching 60\u00b0 seat, as is common on equipment built around metric compression coupling practice to DIN 3861. Use the bonded seal washer when the port presents a plain flat face, in which case the DIN 7603 washer sits under the hex and the elastomer insert does the sealing. The two methods are alternatives on the same stud end and are never used together, because a washer trapped against a cone-seated port prevents the cone from seating.<\/p>\r\n\r\n\r\n\r\n
How do I tell a 1M from a 1H or a 1G?<\/strong><\/p>\r\n\r\n\r\n\r\n
Look at the port, because the thread alone is not enough. A 1M adapter is for a metric port with a 60\u00b0 cone seat or a flat face for a bonded seal. A 1H adapter is for a metric port with an O-ring in a machined recess to ISO 6149-1. A 1G adapter is for a BSPP G thread port with an elastomer seal in a recess to ISO 1179-1. Each family is dimensioned for its own port recess.<\/p>\r\n\r\n\r\n\r\n
HENGHUA machines the 1M adapter in carbon steel, 304 stainless steel and 316 stainless steel, with NBR, FKM and EPDM bonded seal washers to match your fluid. Send your port drawing, thread sizes and required quantity, and HENGHUA will confirm the exact row, material and washer for your application.<\/p>\r\n\r\n\r\n\r\n
![\"Metric](\"https:\/\/www.henghuahose.com\/wp-content\/uploads\/2026\/09\/metric-male-double-use-for-60-degree-cone-seat-or-bonded-seal-adapter-1m-dimensions.png\")
<\/figure>\r\n\r\n\r\n\r\n\r\n