Socket weld boss · forged A105 · B16.11 sockets · UAE stock
A short, thick-walled forged boss that is welded onto a pipe or vessel to give a strong socket for a small branch or instrument. Its heavy body adds local reinforcement compared with a plain half coupling.
Checked stock, standard-compliant
Full sizes, ratings & materials
Ready inventory, UAE & GCC delivery
Project quantities at best price
A socket weld boss is a solid forged collar with a socket bored to ASME B16.11 dimensions. It is lower and heavier than a half coupling, so it sits close to the pipe surface and adds local metal around the branch hole. Bosses come with a flat base for vessels and large headers or with a saddle profile contoured to a given pipe size, and are made to manufacturer standard rather than a single dimensional code.
Hamza Fasteners supplies A105 socket weld bosses in class 3000 for branch sizes 1/4 to 2 inch, with threaded bosses also available. They are used for thermowells, sample points, injection quills, drains and vents on headers, tanks and pressure vessels. Give us the branch size, header size and class, and our Dubai office will confirm the profile and price. Stainless and low temperature grades can be arranged.
Reference data for SW Boss. Confirm exact size, rating and material for your order with our team.
This datasheet shows representative sizes for reference only. SW Boss is supplied in the full range of sizes, ratings and materials — not a single option. Tell us what you need and we will confirm exact availability, specification and price.
| Size (NPS) | Pipe OD (mm) | Min. Socket Depth J (mm) | Pipe Schedule Match |
|---|---|---|---|
| 1/4" | 13.7 | 9.5 | Cl 3000: Sch 80 · Cl 6000: Sch 160 |
| 3/8" | 17.1 | 9.5 | Cl 3000: Sch 80 · Cl 6000: Sch 160 |
| 1/2" | 21.3 | 9.5 | Cl 3000: Sch 80 · Cl 6000: Sch 160 |
| 3/4" | 26.7 | 12.5 | Cl 3000: Sch 80 · Cl 6000: Sch 160 |
| 1" | 33.4 | 12.5 | Cl 3000: Sch 80 · Cl 6000: Sch 160 |
| 1-1/4" | 42.2 | 12.5 | Cl 3000: Sch 80 · Cl 6000: Sch 160 |
| 1-1/2" | 48.3 | 12.5 | Cl 3000: Sch 80 · Cl 6000: Sch 160 |
| 2" | 60.3 | 16.0 | Cl 3000: Sch 80 · Cl 6000: Sch 160 |
| Product Type | Forged weld-on boss |
|---|---|
| Material | ASTM A105 / A105N |
| Standard | Manufacturer standard, B16.11 sockets |
| Pressure / Class | Class 3000 |
| End Connection | Socket weld branch, weld-on base |
| Base | Flat or contoured to header |
| Size Range | 1/4" – 2" branch |
Temperature points
Small nozzles
Drains & vents
Injection & sampling
Quill connections
Instrument tappings
Stocked in Deira, Dubai and delivered fast across the region. Wherever you are building, we supply in stock and project quantities.
Hamza Fasteners is a trusted SW Boss supplier in Dubai and across the United Arab Emirates — Abu Dhabi, Sharjah and Ajman — with regular export supply to Saudi Arabia (Riyadh, Jeddah, Dammam), Qatar (Doha), Kuwait City, Oman (Muscat) and key East and West African markets including Tanzania (Dar es Salaam), Kenya (Nairobi and Mombasa), Nigeria (Lagos) and Ethiopia (Addis Ababa). Looking for a "SW Boss supplier near me" or the best price in your city? Send us your requirement for a same-day quote.
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