1/8 in (6 mm) Black Hexagon Backnut | SBN06
Available
This AAP black hexagon backnut is a mild steel fitting with BSP threads. It is supplied in 10 sizes, 1/8 in (6 mm) to 3 in (80 mm).
A hexagon backnut is a flat hexagon nut threaded inside. It is tightened against a fitting, panel or bracket to lock a threaded pipe or fitting in place. B is the hexagon across flats and C the thickness, as lettered on the AAP drawing.
AAP states that its steel threaded pipe fittings are made to BS EN 10241:2000 (manufacturer-stated). It has a black finish. AAP states that all sizes of its fittings other than unions are sample tested to 5.2 MPa (manufacturer-stated). These are test pressures, not working pressures, so confirm the pressure and temperature for your application with AIMS before you order.
Where this product is used
- Locking a threaded pipe or fitting against a panel or bracket
- Securing a threaded nipple through a tank or wall
- General threaded steel pipework
Features
- 10 sizes, 1/8 in (6 mm) to 3 in (80 mm)
- Mild steel, black, BS EN 10241:2000 (manufacturer-stated)
- BSP threads
Key specifications
| Specification | Detail |
|---|---|
| Brand | AAP |
| Product | Black hexagon backnut, mild steel |
| Finish | Black |
| Material | Mild steel. AAP lists carbon 0.25 per cent maximum and tensile strength 320 N/mm2 minimum for its steel fittings (manufacturer-stated) |
| Thread | BSP (British Standard Pipe) thread; AAP lists ISO 7 and AS 1722 Part 1 for its threads (manufacturer-stated) |
| Ends | Female (internal) thread, flat hexagon |
| Applicable standard (manufacturer-stated) | BS EN 10241:2000, steel threaded pipe fittings (manufacturer-stated) |
| Test pressure (manufacturer-stated) | Sample tested to 5.2 MPa |
| Sizes | 1/8 in (6 mm) to 3 in (80 mm) (10 sizes) |
Options and part numbers
| Size | Part number | Across flats B (mm) | Thickness C (mm) | Weight (kg) |
|---|---|---|---|---|
| 1/8 in (6 mm) | SBN06 | 19.1 | 6.5 | 0.01 |
| 1/4 in (8 mm) | SBN08 | 22.2 | 7 | 0.01 |
| 3/8 in (10 mm) | SBN10 | 27 | 7.9 | 0.02 |
| 1/2 in (15 mm) | SBN15 | 30 | 9 | 0.03 |
| 3/4 in (20 mm) | SBN20 | 35 | 9.7 | 0.04 |
| 1 in (25 mm) | SBN25 | 47.2 | 10.3 | 0.08 |
| 1-1/4 in (32 mm) | SBN32 | 52.1 | 11.1 | 0.08 |
| 1-1/2 in (40 mm) | SBN40 | 61.3 | 11.9 | 0.13 |
| 2 in (50 mm) | SBN50 | 70 | 13.3 | 0.15 |
| 3 in (80 mm) | SBN80 | 100 | 21.5 | 0.45 |
B is the hexagon across flats and C the thickness, as lettered on the AAP drawing, in millimetres. Weights are approximate, in kilograms per piece.
Selecting the right option
Choose the size to match your pipework. These fittings are BSP threaded, so check that your pipe or fitting is BSP and not NPT before you order.
Related products
See also AAP Black Steel Hexagon Nipple, AAP Black Steel Socket, Heavy Type, AAP Black Steel Hexagon Plug and AAP Black Steel Barrel Nipple.
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1/8"
Model Number: SBN06
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1/4"
Model Number: SBN08
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1/2"
Model Number: SBN15
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1"
Model Number: SBN25
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1-1/4"
Model Number: SBN32
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1-1/2"
Model Number: SBN40
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2"
Model Number: SBN50
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3/8"
Model Number: SBN10
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3/4"
Model Number: SBN20
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3"
Model Number: SBN80
