Key Clamp A12 Base Plate: provides a structural base plate for the support of a vertical post, typically for a guardrail. Two socket set screws give a rigid structural fixing. Fix it down with the bolts in line with the applied load, that is at 90 degrees to the rails.
Key Clamp A12 Base Plate Sizes
| Code | Size | Tube outside diameter | Nominal bore |
|---|---|---|---|
| A12-5 | 5 | 26.9mm | 3/4″ |
| A12-6 | 6 | 33.7mm | 1″ |
| A12-7 | 7 | 42.4mm | 1 1/4″ |
| A12-8 | 8 | 48.3mm | 1 1/2″ |
| A12-9 | 9 | 60.3mm | 2″ |
Specification
- Material: malleable iron casting, manufactured in excess of BS 6681 (ISO 5922) and BS 2789 (ISO 1083).
- Finish: hot-dip galvanised to BS EN ISO 1461 as standard. Powder coating on request.
- Set screws: Dacromat coated and case hardened. When tightened to 29 ft lb (4.1 kgm), a slip load of 900kg can be obtained on each screw.
- Assembly: tightens onto the tube with a hexagon key. No welding, drilling or threading.
Dimensions are given as guidance only and are subject to manufacturing tolerances. Because these are galvanised castings, we do not recommend pre-drilling bolt holes before the fittings are on site.
Often Used With
A22 cross tee, A4 long tee and A10 wall flange.
Order and Quote
Choose the size, add it to your quote and add the tube lengths you need: we cut galvanised tube to length free. Stock orders go out for next-day delivery, and we reply to quotes within one hour in working hours. Not sure which fitting you need? Send us a sketch and we will list the parts.
See the full key clamp fittings range and our guide to choosing the right key clamp size.





