{"product_id":"stainless-steel-handrail-joiners","title":"Stainless Steel Handrail Joiners - 316 Marine Grade","description":"\u003cp\u003eStainless steel handrail joiners and connectors in \u003cstrong\u003e316 marine grade\u003c\/strong\u003e (satin and mirror) plus \u003cstrong\u003e304 satin\u003c\/strong\u003e. Inline connectors, 90° elbows (round and square), flush angles, adjustable connectors and corner connectors for joining tube on long runs, around corners and on staircases. Split-tube variants also available for slotted-top glass balustrade systems.\u003c\/p\u003e\u003cp\u003eCoverage in this range: \u003cstrong\u003e316 Mirror\u003c\/strong\u003e (13 variants), \u003cstrong\u003e316 Satin\u003c\/strong\u003e (7 variants), \u003cstrong\u003e304 Satin\u003c\/strong\u003e (5 variants). All products supplied by Brundle - the UK's leading Pro-Railing supplier - and dispatched from UK stock.\u003c\/p\u003e\u003ch2\u003eWhat These Components Are\u003c\/h2\u003e\u003cp\u003eJoiners connect lengths of handrail tube together. Inline connectors splice two straight runs end-to-end where you need more than a single length. Elbows and corners turn the handrail through 90° or 135° at corners and landings. Adjustable joiners (typically 0-70°) accommodate staircase pitch angles. Split-tube joiners are designed for the slotted rectangular\/oval profiles that accept glass directly.\u003c\/p\u003e\u003ch2\u003eFinishes Explained\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003e316 Mirror\u003c\/strong\u003e - the premium architectural finish. Marine-grade 316 stainless polished to a high reflective mirror finish. The choice for showcase residential, hotels, retail and feature installs where appearance matters as much as durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e316 Satin\u003c\/strong\u003e - the trade standard for external and marine work. Marine-grade 316 stainless with a brushed satin finish - hides fingerprints, water spots and minor scratches. The default choice for balconies, terraces, swimming pools, coastal homes and commercial work.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e304 Satin\u003c\/strong\u003e - the indoor\/dry-environment option. Standard 304 grade stainless in satin finish - lower cost than 316, perfectly suited to interior staircases, dry-environment installs and budget-focused projects. Not recommended for outdoor or coastal use.\u003c\/p\u003e\u003ch2\u003eSpecification \u0026amp; Standards\u003c\/h2\u003e\u003cp\u003eAll stainless steel components are manufactured to BS EN 10088 stainless steel standards. 316 grade contains 16-18% chromium, 10-14% nickel and 2-3% molybdenum (the molybdenum is what gives 316 its marine-grade chloride resistance). 304 grade contains 18-20% chromium and 8-10.5% nickel. Tube and section dimensions to standard UK railing dimensions (42.4mm or 48.3mm OD round tube, 40×40mm square, 40×30mm or 60×30mm channel for glass-top systems).\u003c\/p\u003e\u003ch2\u003eSample Sizes \u0026amp; Pricing\u003c\/h2\u003e\u003cp\u003eAll prices include VAT. See full variant list below.\u003c\/p\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003cth\u003eSize \/ Specification\u003c\/th\u003e\n\u003cth\u003ePrice (inc VAT)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e48.3mm tube \/ inline connector (split tube)\u003c\/td\u003e\n\u003ctd\u003e£5.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e42.4mm tube \/ inline connector\u003c\/td\u003e\n\u003ctd\u003e£6.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e42.4mm tube \/ inline connector (split tube)\u003c\/td\u003e\n\u003ctd\u003e£10.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e42.4mm tube \/ 90° round elbow\u003c\/td\u003e\n\u003ctd\u003e£10.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e42.4mm tube \/ 90° horizontal corner (split tube)\u003c\/td\u003e\n\u003ctd\u003e£13.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e42.4mm tube \/ 90° flush angle scroll end\u003c\/td\u003e\n\u003ctd\u003e£13.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e48.3mm tube \/ 90° horizontal corner (split tube)\u003c\/td\u003e\n\u003ctd\u003e£17.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e42.4mm tube \/ adjustable elbow\u003c\/td\u003e\n\u003ctd\u003e£18.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e42.4mm tube \/ 0-70° adjustable smooth\u003c\/td\u003e\n\u003ctd\u003e£19.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e42.4mm tube \/ adjustable upward (split tube)\u003c\/td\u003e\n\u003ctd\u003e£23.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e48.3mm tube \/ adjustable upward (split tube)\u003c\/td\u003e\n\u003ctd\u003e£23.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e42.4mm tube \/ adjustable downward (split tube)\u003c\/td\u003e\n\u003ctd\u003e£25.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Mirror\u003c\/td\u003e\n\u003ctd\u003e48.3mm tube \/ adjustable downward (split tube)\u003c\/td\u003e\n\u003ctd\u003e£28.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Satin\u003c\/td\u003e\n\u003ctd\u003e42.4mm tube \/ inline connector\u003c\/td\u003e\n\u003ctd\u003e£5.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Satin\u003c\/td\u003e\n\u003ctd\u003e48.3mm tube \/ inline connector\u003c\/td\u003e\n\u003ctd\u003e£5.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Satin\u003c\/td\u003e\n\u003ctd\u003e40×10mm rectangular \/ inline connector\u003c\/td\u003e\n\u003ctd\u003e£5.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Satin\u003c\/td\u003e\n\u003ctd\u003e25mm split tube \/ inline connector\u003c\/td\u003e\n\u003ctd\u003e£12.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Satin\u003c\/td\u003e\n\u003ctd\u003e25×21mm split tube \/ inline connector\u003c\/td\u003e\n\u003ctd\u003e£12.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Satin\u003c\/td\u003e\n\u003ctd\u003e25mm split tube \/ adjustable vertical\u003c\/td\u003e\n\u003ctd\u003e£17.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e316 Satin\u003c\/td\u003e\n\u003ctd\u003e25×21mm split tube \/ adjustable vertical\u003c\/td\u003e\n\u003ctd\u003e£17.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eAll components in this range are part of the Brundle Pro-Railing system - the UK's most widely-specified stainless steel balustrade system. Components are fully compatible with each other across finishes and component types - you can mix mirror posts with satin clamps if you want a feature contrast, or specify a single finish throughout. Glass clamps, joiners, brackets and end caps are sized to 42.4mm or 48.3mm round tube - check your tube diameter before ordering fittings.\u003c\/p\u003e\u003ch2\u003eBulk \u0026amp; Trade Orders\u003c\/h2\u003e\u003cp\u003eFor trade orders, full balustrade specifications or multi-component fit-outs (balconies, staircases, swimming pool surrounds), contact us for a project quote - trade pricing is available on volume orders. We can supply matched component schedules cross-checked against your drawings.\u003c\/p\u003e\u003ch2\u003eDelivery Information\u003c\/h2\u003e\u003cp\u003eLead times are 3-5 working days to mainland UK addresses. Items dispatched by courier or pallet depending on quantity. Shipping is £15 flat rate or free over £200 ex VAT.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHow do inline connectors work?\u003c\/strong\u003e\u003cbr\u003eInline connectors are a short sleeve (typically 80-100mm) that inserts inside the bore of two tube lengths, butting them end-to-end. Grub screws or welding lock them in place. They're invisible from the outside, giving a clean continuous tube appearance across the joint. Use them on long handrail runs where you need more than a single tube length, or where ceiling\/transport limits dictate shorter sections that must be joined on site.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFixed elbow or adjustable elbow?\u003c\/strong\u003e\u003cbr\u003eFixed elbows are pre-formed to exactly 90° (or 135°). Use them on level handrail that turns through right-angle corners (along corridors, around landings). Adjustable elbows pivot - typically 0-70° - and lock at any chosen angle. Use them on staircases where the handrail rake angle isn't 90° or wherever the geometry isn't a clean right angle. Adjustable costs more but is far more forgiving on real-world installs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's the difference between 316 and 304 stainless steel?\u003c\/strong\u003e\u003cbr\u003e316 stainless contains molybdenum which gives it superior corrosion resistance against chlorides (salt, swimming pool water, marine air, de-icing salts). 304 stainless is the standard interior-grade - cheaper, perfectly fine for dry indoor use, but will eventually pit and stain in coastal or pool environments. For external use, marine applications, swimming pools, balconies and any salt-exposed location - always specify 316. For indoor stairs, dry environments and budget projects, 304 is the right choice.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSatin or mirror finish - what's the difference?\u003c\/strong\u003e\u003cbr\u003eBoth 316 satin and 316 mirror are the same grade of marine stainless steel - the difference is the surface finish only. Satin is a brushed\/lined finish that hides fingerprints, scratches and water spotting - it's the standard architectural choice. Mirror is a high-polish reflective finish - more decorative, premium-looking, but shows every fingerprint, water mark and scratch. Pick mirror for showcase installs (luxury homes, hotels, retail), satin for everyday commercial and residential use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's the delivery lead time?\u003c\/strong\u003e\u003cbr\u003eLead times are 3-5 working days for stainless steel handrail components to mainland UK addresses. Items are dispatched by courier or pallet depending on quantity. Shipping is £15 flat rate or free over £200 ex VAT.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do inline connectors work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Inline connectors are a short sleeve (typically 80-100mm) that inserts inside the bore of two tube lengths, butting them end-to-end. Grub screws or welding lock them in place. They're invisible from the outside, giving a clean continuous tube appearance across the joint. Use them on long handrail runs where you need more than a single tube length, or where ceiling\/transport limits dictate shorter sections that must be joined on site.\"}}, {\"@type\": \"Question\", \"name\": \"Fixed elbow or adjustable elbow?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Fixed elbows are pre-formed to exactly 90° (or 135°). Use them on level handrail that turns through right-angle corners (along corridors, around landings). Adjustable elbows pivot - typically 0-70° - and lock at any chosen angle. Use them on staircases where the handrail rake angle isn't 90° or wherever the geometry isn't a clean right angle. Adjustable costs more but is far more forgiving on real-world installs.\"}}, {\"@type\": \"Question\", \"name\": \"What's the difference between 316 and 304 stainless steel?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"316 stainless contains molybdenum which gives it superior corrosion resistance against chlorides (salt, swimming pool water, marine air, de-icing salts). 304 stainless is the standard interior-grade - cheaper, perfectly fine for dry indoor use, but will eventually pit and stain in coastal or pool environments. For external use, marine applications, swimming pools, balconies and any salt-exposed location - always specify 316. 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