Made from very high quality High-tensile Steel. All 0.5kg UKAS Slotted Hanger Weights have a maximum stacking height of 190-200mm and are calibrated here at JWS to the specification listed below:

M1 +/-25mg.


UKAS Test Weights are sent to Trading Standard to be tested and Certificated.

They must have a Serial Number stamped onto the weight.

Only one UKAS Certificate is needed per batch of weights on the same order. Please remember to add this to your basket available back on the Test Weights page.