Black steel half socket
Shipping and Delivery
Shipping and Delivery
| Product Type | Delivery Method | Preparation Time | Transport Time | Delivery Time |
|---|---|---|---|---|
| All Parts | Pickup Point | 0 to 3 days | 3 to 6 days | 3 to 9 days |
| All Parts | Home Delivery | 0 to 3 days | 3 to 5 days | 3 to 8 days |
| Tubes > 90cm | Home Delivery | 0 to 3 days | 3 to 5 days | 3 to 8 days |
| Tubes < 200cm | Home Delivery | 0 to 3 days | 3 to 5 days | 3 to 8 days |
| Tubes > 200cm | Home Delivery | 0 to 6 days | 6 to 10 days | 6 to 16 days |
| Assembled Products | Home Delivery & Pickup Point | 0 to 5 days | (see methods) | 3 to 11 days |
* Tubes longer than 90cm cannot be delivered to a pickup point
For orders of more than 50 units of the same item or more than 100 kg, restocking may exceptionally extend the delivery time by up to 10 working days.
For confirmation of delivery times on specific items, please send us a message
Black steel half socket
The black steel ring, or standard series steel half socket, is a short tapped fitting manufactured to EN 10241 from S235JR steel tube. Shorter than a regular coupling, this threaded ring screws onto any male BSP thread: the end of a steel pipe, a nipple or a malleable iron fitting. Its raw, slightly grainy black finish also makes it a great choice for industrial-style DIY projects: pipe clothes racks, lamps, furniture or finishing rings.
Technical specifications
- Type: half socket (tapped ring) — standard series, manufacturer ref. 2271
- Material: S235JR steel (weldable)
- Manufacturing standard: EN 10241, made from welded or seamless steel tube
- Connection: parallel through thread Rp to ISO 7-1 (BSP gas thread)
- Working pressure: PN 50 bar
- Finish: raw black steel
Dimensions and weight
D = outer diameter of the ring, L = length (see technical drawing below). The millimetre designation (15/21, 20/27…) is the French naming for gas threads.
| Thread Ø | DN | Designation | D (mm) | L (mm) | Weight |
|---|---|---|---|---|---|
| 1/2″ | 15 | 15/21 | 26.6 | 15 | 29 g |
| 3/4″ | 20 | 20/27 | 31.8 | 17 | 40 g |
| 1″ | 25 | 26/34 | 39.5 | 20 | 62 g |
| 1″1/4 | 32 | 33/42 | 48.3 | 22 | 92 g |
| 1″1/2 | 40 | 40/49 | 54.5 | 22 | 105 g |
| 2″ | 50 | 50/60 | 68.0 | 26 | 165 g |
| 2″1/2 | 65 | 66/76 | 84.0 | 30 | 275 g |
What is a half socket used for?
In plumbing, the steel half socket ends or extends a threaded connection over a short length: it screws onto a male gas thread of the same diameter and provides a through tapped bore. Made of weldable S235JR steel, it is also commonly welded onto a pipe or tank to create a tapped outlet.
In industrial decor, this black steel ring works as a finishing piece on threaded tube builds: a shoulder on a clothes rack, a stop ring on a furniture leg, or a trim on a plumbing-pipe lamp.
Compatibility
The ISO 7-1 gas thread is compatible with threaded steel pipes and malleable iron fittings of the same diameter. Pick the size matching your pipe: for example a 1/2″ pipe (15/21) screws into the 1/2″ ring.
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