






🔐 Lock in reliability with the Lockshield Key – your valve’s best ally!
The Primaflow Lockshield Key (model 10025372) is a compact, lightweight valve tool made from durable Chrome Vanadium Steel. Designed with a fixed square head for secure grip, it measures 16 x 1.65 x 19 cm and weighs just 40 grams, making it ideal for precise valve adjustments in plumbing applications.
| Manufacturer | Primaflow |
| Part Number | 10025372 |
| Product Dimensions | 16 x 1.65 x 19 cm; 40 g |
| Item model number | Primaflow-XYZ |
| Colour | Gold |
| Material | Chrome Vanadium Steel |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Head Style | Fixed Square |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 40 g |
R**R
Ideal for Drayton lock shield radiator valves
Fits Drayton radiator lock shield valves. Can't grip the Drayton knob so remove screw & knob and use this instead. Perfect fit, much easier to turn.
D**N
Incorrect size
They are too small for our allotment taps & the incorrect size to described, can we exchange them for a bigger size please?
D**D
Just what I wanted
Great key strong and fits without any messing
E**S
Unfortunately did not fit my valve.
Did not fit valve.
A**R
Works perfectly with square Drayton TRV4 lockshield valve shafts.
Speedy delivery, good price, square socket fits the approx 1/4 inch square Drayton TRV4 lockshield valves I use. Much more convenient than using an adjustable spanner.
R**Y
Good quality
Perfect for an outdoor 1/4" stopcock, . Replaced a red steel handle with this as it won't rust.
P**S
Cheap Alloy
Waste of time snapped after second use
C**N
Cheap option for outdoor taps
Handy and easy to carry if you need to access outdoor taps with the square fitting.
Trustpilot
1 week ago
2 weeks ago