{"id":80,"date":"2026-10-05T20:14:54","date_gmt":"2026-10-05T12:14:54","guid":{"rendered":"http:\/\/runda-hitech.com\/?page_id=80"},"modified":"2026-10-05T21:09:37","modified_gmt":"2026-10-05T13:09:37","slug":"double-ferrule-fittings","status":"publish","type":"page","link":"https:\/\/runda-hitech.com\/index.php\/products\/tube-fittings\/double-ferrule-fittings\/","title":{"rendered":"Double Ferrule Tube Fittings"},"content":{"rendered":"\n<div class=\"wp-block-cover alignfull rlok-hero\" style=\"min-height:430px;aspect-ratio:unset;\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\"><\/span><img decoding=\"async\" class=\"wp-block-cover__image-background\" alt=\"\" src=\"http:\/\/runda-hitech.com\/wp-content\/uploads\/2026\/10\/r-lok-double-ferrule-fittings-1-1.jpg\" data-object-fit=\"cover\"\/><div class=\"wp-block-cover__inner-container has-global-padding is-layout-constrained wp-block-cover-is-layout-constrained\">\n<h1 class=\"wp-block-heading\">Double Ferrule Tube Fittings<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Double ferrule tube fittings join instrument tubing with two swaged ferrules, so lines are assembled on site without welding, flaring or a hot work permit. R-LOK supplies 316 or 316L stainless steel fittings for fractional tubing from 1\/16 to 2 in and metric tubing from 2 to 38 mm, with NPT, ISO and SAE threaded ends.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/index.php\/contact\/\">Request a quote<\/a><\/div>\n\n<div class=\"wp-block-button is-style-outline\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/index.php\/products\/\">Browse products<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group rlok-body has-global-padding is-layout-constrained wp-container-core-group-is-layout-b8954cbe wp-block-group-is-layout-constrained\" style=\"border-radius:0px\">\n<p class=\"wp-block-paragraph\"><span class=\"rlok-fallback-nav\"><a href=\"\/index.php\/products\/\">Products<\/a> &nbsp;&middot;&nbsp; <a href=\"\/index.php\/applications\/\">Applications<\/a> &nbsp;&middot;&nbsp; <a href=\"\/index.php\/quality\/\">Quality<\/a> &nbsp;&middot;&nbsp; <a href=\"\/index.php\/resources\/\">Resources<\/a> &nbsp;&middot;&nbsp; <a href=\"\/index.php\/about\/\">About<\/a> &nbsp;&middot;&nbsp; <a href=\"\/index.php\/contact\/\">Contact<\/a><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"rlok-bc\"><a href=\"\/index.php\/\">Home<\/a> &rsaquo; <a href=\"\/index.php\/products\/\">Products<\/a> &rsaquo; <a href=\"\/index.php\/products\/tube-fittings\/\">Tube Fittings<\/a> &rsaquo; <strong>Double Ferrule Fittings<\/strong><\/span><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-6ac5c474 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"http:\/\/runda-hitech.com\/wp-content\/uploads\/2026\/10\/r-lok-double-ferrule-fittings-2-1.jpg\" alt=\"Double ferrule tube fittings group: union cross, union tees, male elbows and tube adapters\" width=\"760\"\/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-6ac5c474 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Key features<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Two swaged ferrules per joint: front ferrule seals, back ferrule grips the tube<\/li>\n\n<li>316 or 316L stainless steel bodies, nuts and ferrules in the standard tables<\/li>\n\n<li>Fractional tubing 1\/16 to 2 in (1.6 to 50.8 mm), metric 2-38 mm<\/li>\n\n<li>NPT per ASME B1.20.1, ISO 7\/1 taper and ISO 228 parallel ends<\/li>\n\n<li>Seventeen shapes: unions, bulkheads, connectors, elbows, tees, crosses, plugs<\/li>\n\n<li>Tighten 1-1\/4 turns past finger-tight up to 1 in (25 mm) tube<\/li>\n<\/ul>\n<\/div>\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Parameter<\/th><th>Value<\/th><\/tr><\/thead><tbody><tr><td>Size range<\/td><td>1\/16 to 2 in (1.6 to 50.8 mm) fractional; metric 2, 3, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 32, 38 mm<\/td><\/tr><tr><td>Material<\/td><td>316 or 316L stainless steel body, nut and ferrule; lightly oiled as supplied, cleaned condition agreed<\/td><\/tr><tr><td>Threaded ends<\/td><td>NPT 1\/16 to 2 in per ASME B1.20.1; ISO 7\/1 taper and ISO 228 parallel on request<\/td><\/tr><tr><td>Pressure basis<\/td><td>1\/16 in NPT 11,000 psig (757 bar) and 2 in NPT 3,900 psig (268 bar) in 316; brass 5,500 psig (378 bar) and 1,900 psig (130 bar), catalogue page 1-01<\/td><\/tr><tr><td>Temperature<\/td><td>thread pressures per ANSI\/ASME B31.3 at ambient; no temperature column in pages 1-01 to 1-70, confirmed per size, wall and material<\/td><\/tr><tr><td>Series codes<\/td><td>SU, SRU, SBHU, SBHRU, SMC, SGMC, SFC, SSMC, SOSC, SPWC, SSWC, SP, SC; elbows SE, SLE, SHE, SME, SHME, SMPWE, SSWE, SPHE, SPHME, SPME adjustable; branch shapes ST, SUT, SET, SMET, SMT, SRT, SRET<\/td><\/tr><tr><td>Ordering examples<\/td><td>SU-8 for 1\/2 in tube union, SMC-6M-2R for 6 mm tube by 1\/8 in ISO taper male, SBHU-8 for 1\/2 in bulkhead union<\/td><\/tr><tr><td>Connections and components<\/td><td>SAE\/MS straight threads 7\/16-20 to 1-5\/16-12 and 37 degree AN flare 1\/8 to 1 in; SN nut, SFF front ferrule, SBF back ferrule, SBHR retainer, SPV bore protector with 40 mesh screen, SFS ferrule kit, SI hose insert, SFTC flange connectors with smooth (SM) or serrated (SR) seal faces<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">How the two-ferrule joint works<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Each tube end carries a front ferrule and a back ferrule inside one nut. Hand-tightening pushes the tube into the body until it bottoms. Wrench turns drive the back ferrule forward, swaging the front ferrule onto the tube outside diameter while biting into the tube.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The front ferrule seals against the body cone; the back ferrule holds against vibration and pull-out, giving a metal-to-metal seal with no elastomer. Tighten 1-1\/4 turns past finger-tight to 1 in (25 mm), 3\/4 turn below, pre-swage above. Never loosen a fitting under pressure.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Materials and pressure ratings<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bodies, nuts and ferrules are 316 or 316L stainless steel. Thread pressure depends on metal at the threaded end: a 1\/16 in NPT male thread is rated 11,000 psig (757 bar) in 316 stainless, or 5,500 psig (378 bar) in brass.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thread working pressures are referenced to ANSI\/ASME B31.3 at ambient temperature. Catalogue pages 1-01 to 1-70 publish no pressure or temperature column, so R-LOK issues ratings for the exact size, tube wall and material on the quotation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Series codes and sizes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Every series code starts with S for the body: SU straight union, SRU reducing union, SBHU and SBHRU bulkheads, SMC and SGMC male connectors, SFC female connector, SSMC and SOSC O-ring seal connectors, SPWC and SSWC weld connectors, SP plug and SC connector.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Elbows cover SE and SLE, SHE, SME, SHME, SMPWE and SSWE, plus SPHE, SPHME and SPME adjustable. Branch shapes are ST, SUT, SET, SMET, SMT, SRT and SRET. Metric codes carry an M suffix; SRU-6M-4M joins 6 mm to 4 mm tube.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Standards referenced:<\/strong> NPT thread form per ASME B1.20.1 and SAE AS71051; ISO 7-1, EN 10226-1, BS 21, DIN 2999 and JIS B0203 taper threads; ISO 228-1, DIN 228-1, JIS B0202 and BS 2779 parallel threads; Thread working pressures referenced to ANSI\/ASME B31.3 at ambient temperature; 37 degree AN flare ends to SAE practice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Typical duties:<\/strong> Instrument, sample and analyser lines on gas skids; Petrochemical and chemical analyser systems; High-purity gas and chemical delivery in semiconductor fabs; Pharmaceutical and bioprocess lines needing weld-free joints; Hydrogen, battery and new energy process skids; Hydraulic and pneumatic control panels.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Double ferrule tube fitting model selection guide &#8211; SMC male connector (NPT)<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Series \/ model<\/th><th>Size<\/th><th>Connection<\/th><th>Working pressure<\/th><th>Body material<\/th><th>Notes<\/th><\/tr><\/thead><tbody><tr><td>SMC-1-1N<\/td><td>1\/16 in. tube OD<\/td><td>1\/16 male NPT<\/td><td>11000 psig (757 bar)<\/td><td>316 stainless steel<\/td><td>d min. 1.27 mm; hex h 5\/16 in.; A 8.63, B 10.92, I 20.00, L 23.83 mm<\/td><\/tr><tr><td>SMC-1-2N<\/td><td>1\/16 in. tube OD<\/td><td>1\/8 male NPT<\/td><td>10000 psig (690 bar)<\/td><td>316 stainless steel<\/td><td>d min. 1.27 mm; hex h 7\/16 in.; A 8.63, B 10.92, I 22.35, L 26.23 mm<\/td><\/tr><tr><td>SMC-2-2N<\/td><td>1\/8 in. tube OD<\/td><td>1\/8 male NPT<\/td><td>10000 psig (690 bar)<\/td><td>316 stainless steel<\/td><td>d min. 2.28 mm; hex h 7\/16 in.; A 12.70, B 15.24, I 23.87, L 30.48 mm<\/td><\/tr><tr><td>SMC-2-4N<\/td><td>1\/8 in. tube OD<\/td><td>1\/4 male NPT<\/td><td>8000 psig (551 bar)<\/td><td>316 stainless steel<\/td><td>d min. 2.28 mm; hex h 9\/16 in.; A 12.70, B 15.24, I 28.95, L 35.56 mm<\/td><\/tr><tr><td>SMC-2-6N<\/td><td>1\/8 in. tube OD<\/td><td>3\/8 male NPT<\/td><td>7800 psig (537 bar)<\/td><td>316 stainless steel<\/td><td>d min. 2.28 mm; hex h 11\/16 in.; A 12.70, B 15.24, I 29.21, L 35.81 mm<\/td><\/tr><tr><td>SMC-3-2N<\/td><td>3\/16 in. tube OD<\/td><td>1\/8 male NPT<\/td><td>10000 psig (690 bar)<\/td><td>316 stainless steel<\/td><td>d min. 3.04 mm; hex h 7\/16 in.; A 13.71, B 16.00, I 24.63, L 31.24 mm<\/td><\/tr><tr><td>SMC-4-2N<\/td><td>1\/4 in. tube OD<\/td><td>1\/8 male NPT<\/td><td>10000 psig (690 bar)<\/td><td>316 stainless steel<\/td><td>d min. 4.82 mm; hex h 1\/2 in.; A 15.24, B 17.78, I 25.40, L 32.76 mm<\/td><\/tr><tr><td>SMC-4-4N<\/td><td>1\/4 in. tube OD<\/td><td>1\/4 male NPT<\/td><td>8000 psig (551 bar)<\/td><td>316 stainless steel<\/td><td>d min. 4.82 mm; hex h 9\/16 in.; A 15.24, B 17.78, I 30.48, L 37.84 mm<\/td><\/tr><tr><td>SMC-4-6N<\/td><td>1\/4 in. tube OD<\/td><td>3\/8 male NPT<\/td><td>7800 psig (537 bar)<\/td><td>316 stainless steel<\/td><td>d min. 4.82 mm; hex h 11\/16 in.; A 15.24, B 17.78, I 30.98, L 38.35 mm<\/td><\/tr><tr><td>SMC-4-8N<\/td><td>1\/4 in. tube OD<\/td><td>1\/2 male NPT<\/td><td>7700 psig (530 bar)<\/td><td>316 stainless steel<\/td><td>d min. 4.82 mm; hex h 7\/8 in.; A 15.24, B 17.78, I 37.33, L 44.70 mm<\/td><\/tr><tr><td>SMC-6-4N<\/td><td>3\/8 in. tube OD<\/td><td>1\/4 male NPT<\/td><td>8000 psig (551 bar)<\/td><td>316 stainless steel<\/td><td>d min. 7.11 mm; hex h 5\/8 in.; A 16.76, B 19.30, I 32.51, L 39.87 mm<\/td><\/tr><tr><td>SMC-6-6N<\/td><td>3\/8 in. tube OD<\/td><td>3\/8 male NPT<\/td><td>7800 psig (537 bar)<\/td><td>316 stainless steel<\/td><td>d min. 7.11 mm; hex h 11\/16 in.; A 16.76, B 19.30, I 32.51, L 39.87 mm<\/td><\/tr><tr><td>SMC-8-8N<\/td><td>1\/2 in. tube OD<\/td><td>1\/2 male NPT<\/td><td>7700 psig (530 bar)<\/td><td>316 stainless steel<\/td><td>d min. 10.41 mm; hex h 7\/8 in.; A 22.86, B 21.84, I 38.86, L 49.02 mm<\/td><\/tr><tr><td>SMC-8-12N<\/td><td>1\/2 in. tube OD<\/td><td>3\/4 male NPT<\/td><td>7300 psig (502 bar)<\/td><td>316 stainless steel<\/td><td>d min. 10.41 mm; hex h 1-1\/16 in.; A 22.86, B 21.84, I 40.38, L 50.54 mm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Selection notes:<\/strong> The 1-10 ordering table for SMC (male connector) prints only model code, tube OD, NPT thread size, hex width and mm dimensions; seat\/packing and Cv are not published in this section, so those columns are omitted. Working pressures are the NPT thread-end ratings printed on page 1-01 under &#8216;316 stainless steel &#8211; male thread&#8217;, quoted in psig and bar exactly as printed; 1-01 also publishes a brass column for the same thread sizes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Catalogue reference 1-10, 1-01. Confirm the final rating against the data sheet issued with your order.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>See also:<\/strong> <a href=\"\/index.php\/products\/tube-fittings\/high-purity-weld-fittings\/\">High Purity Weld Fittings<\/a> &middot; <a href=\"\/index.php\/products\/tube-fittings\/threaded-fittings\/\">Threaded Fittings<\/a> &middot; <a href=\"\/index.php\/products\/tube-fittings\/\">Tube Fittings<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>What is the pressure rating of these fittings?<\/summary>\n<p class=\"wp-block-paragraph\">Catalogue 1-01 to 1-70 carries no pressure column for the joints. Page 1-01 gives 11,000 psig (757 bar) for a 1\/16 in 316 stainless NPT thread down to 3,900 psig (268 bar) at 2 in, referenced to ANSI\/ASME B31.3. R-LOK confirms the rating on quotation.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Does a complete fitting include both ferrules and the nut?<\/summary>\n<p class=\"wp-block-paragraph\">Assemblies such as SU, SMC and SBHU come complete with body, nut and both ferrules. Ferrules and nuts are listed separately (SN nut, SFF and SBF ferrules), so a joint is re-made without replacing the body; SFS kits hold ten front and ten back ferrules.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Can you supply NPT and BSP threads in the same order?<\/summary>\n<p class=\"wp-block-paragraph\">Yes. The tables list NPT ends per ASME B1.20.1, ISO 7\/1 taper and ISO 228 parallel ends, plus SAE\/MS straight-thread and 37 degree AN flare. NPT is supplied where ISO is listed and ISO where NPT is listed, so state the thread standard when asking.<\/p>\n<\/details>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull rlok-cta has-global-padding is-layout-constrained wp-container-core-group-is-layout-c4390f02 wp-block-group-is-layout-constrained\" style=\"border-radius:0px\">\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-container-core-group-is-layout-b097105c wp-block-group-is-layout-constrained\" style=\"border-radius:0px\">\n<h2 class=\"wp-block-heading\">Request a quote or technical clarification<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Send us the model, size, material and quantity you need &mdash; or a photo of the existing part. We reply with a quotation, availability and the applicable documents, usually within one working day.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"mailto:nimo@runda-hitech.com\">Email nimo@runda-hitech.com<\/a><\/div>\n\n<div class=\"wp-block-button is-style-outline\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/wa.me\/8613657416007\">WhatsApp +86 136 5741 6007<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Tel \/ WhatsApp: +86 136 5741 6007 &middot; Email: nimo@runda-hitech.com<\/p>\n<\/div>\n<\/div>\n\n\n\n<style>img{max-width:100%;height:auto}.wp-block-table{max-width:100%}.rlok-bc{display:block;font-size:13px;letter-spacing:.01em;color:#5a6b7d;margin:0 0 26px}.rlok-bc a{color:#0b2545;text-decoration:none}.rlok-bc a:hover{color:#c8102e;text-decoration:underline}.rlok-bc strong{color:#0b2545}.rlok-fallback-nav{display:block;border-bottom:1px solid #dde3ea;padding-bottom:12px;margin:0 0 18px;font-size:14.5px;font-weight:600}.rlok-fallback-nav a{color:#0b2545;text-decoration:none}.rlok-fallback-nav a:hover{color:#c8102e;text-decoration:underline}@media (max-width:782px){.rlok-hero{min-height:330px!important;padding-left:18px!important;padding-right:18px!important}.rlok-hero h1{font-size:26px;line-height:1.22}.rlok-hero p{font-size:15.5px}.rlok-body{padding:30px 18px 12px!important}.rlok-cta{padding:38px 18px!important}.rlok-cta h2{font-size:22px}.rlok-bc{font-size:12.5px;margin-bottom:18px}.wp-block-table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}.wp-block-table table{min-width:520px;font-size:13px}.wp-block-table th,.wp-block-table td{padding:7px 9px}.wp-block-columns{gap:1.1rem;margin-bottom:1.3rem}.wp-block-button{width:100%}.wp-block-button__link{width:100%;text-align:center}h2.wp-block-heading{font-size:22px}h3.wp-block-heading{font-size:19px}.wp-block-details{padding:12px 14px}}<\/style><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"http:\/\/runda-hitech.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Products\", \"item\": \"http:\/\/runda-hitech.com\/products\/\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Tube Fittings\", \"item\": \"http:\/\/runda-hitech.com\/products\/tube-fittings\/\"}, {\"@type\": \"ListItem\", \"position\": 4, \"name\": \"Double Ferrule Fittings\", \"item\": \"http:\/\/runda-hitech.com\/products\/tube-fittings\/double-ferrule-fittings\/\"}]}<\/script>\n\n\n<!-- VERIFY BEFORE PUBLISHING: Confirm that every catalogue assembly line (SU, SRU, SBHU, SMC and the elbow, tee and cross series) is supplied complete with body, nut, front ferrule and back ferrule, and state whether the two ferrules are always 316 stainless steel. | The section publishes no pressure table for the fitting joints. Confirm whether a verified working pressure table per tube size, tube wall and material can be supplied with quotations, or whether only the NPT thread pressures from catalogue page 1-01 may be quoted. | Confirm whether a temperature range for the standard 316 or 316L stainless construction can be published, or whether it must be confirmed case by case as the catalogue currently provides no temperature data for this family. | Confirm whether Buna-N, FKM or PTFE O-rings are available for the O-ring sealed connectors (SSMC, SOSC, SOPC, SPME, SPHE, SPHME) and which materials are held in stock. | Confirm whether a pre-swaging tool is available and whether it is supplied with an order or only advised for tubing above 1 in (25 mm). | Confirm the minimum order quantity and typical lead time for a mixed order covering many catalogue lines, and whether partial shipments are offered. | Confirm whether hydrostatic or helium leak testing can be performed on assembled fittings or tubing runs, and what test pressure and acceptance criterion would be reported. | Confirm whether a cleaned, low-residue condition is available for oxygen, semiconductor or pharmaceutical service, and what the cleaning specification and residue limit would be, since the catalogue shows only a lightly oiled shipment condition. -->\n\n<!-- build: slug=double-ferrule-fittings type=category keywords=double ferrule tube fittings supplier, 316 stainless steel compression tube fittings exporter, instrument tube fittings 1\/4 inch NPT, metric tube fittings 6mm to 1\/4 NPT, bulkhead union tube fitting 1\/2 inch, reducing union tube fittings 1\/4 to 1\/8, double ferrule fittings material certificate, ISO 228 parallel thread tube connector 316L, 37 degree AN flare tube adapter supplier, R-LOK double ferrule fittings, instrumentation tube fittings export China -->","protected":false},"excerpt":{"rendered":"<p>316 stainless double ferrule tube fittings, 1\/16 to 2 in and 2 to 38 mm tubing, NPT or ISO threads. Export supply with mill certs. Request a quote.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":64,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-80","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/pages\/80","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/comments?post=80"}],"version-history":[{"count":11,"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/pages\/80\/revisions"}],"predecessor-version":[{"id":406,"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/pages\/80\/revisions\/406"}],"up":[{"embeddable":true,"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/pages\/64"}],"wp:attachment":[{"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/media?parent=80"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}