Micro Wallnuts (SET size 00-3/4)
Our alloy micros are machined from 7000 series aluminium. This allows us to incorporate a machined inset radius that both improves strengths and protects the wires.
We make these nuts from the harder 7000 series alloys because they must be able to resist high shear forces.
There is a common misunderstanding about small nuts that goes 'micro brassies are stronger and better than alloy micros'. Micro wires virtually always break at the wire loop where it joins the carabiner and the defining factor here is the wire diameter and wire diameter is quite constant for a given head size. It is really a visual issue - an alloy nut looks bigger than an equivalent brass nut and so there is an expectation that it will be stronger.
In reality it is this extra surface area that makes micro alloy nuts so useful - any load is spread over a wider area and reduces the chance of the nut being pulled through the placement.
Thus both brass micros and alloy micros have their place - brass micros will fit smaller placements, but if they fit then the small alloy nuts spread the load better. Place them in clusters, use screamers/ripstops, back them up as soon as possible and if you do fall get your belayer to make the catch as soft as possible.
Small nuts often have two strength ratings on them; this is because the nuts have to be tested in all orientations. Thus the smaller figure will be the rating on the narrow side and the larger figure when placed normally, with the wider face in contact with the rock.
We use Royal Mail and FED EX Parcel services to dispatch goods to customers. We will use the most appropriate service available for the goods being dispatched these services normally require a signature on receipt of the package(s). We reserve the right to use alternative methods at our discretion.
Normal delivery days are Monday – Friday. Orders are delivered within 3-5days using our normal delivery service. Next day delivery is available at additional cost. Orders received before 12pm can be processed for next day delivery we will telephone you if this service is not achievable for your particular order. Our current website carriage charges are based on order value.
Currently,
Order value up to £100.00 delivery cost £5.00
Order value of £100 and over delivery cost £ FREE
Next day delivery cost £15.00
Refunds & exchanges
You can return/exchange your item(s) within 14 days at your own expense (non-used item(s) in new condition). We will either exchange the item(s) and send it to you for free or refund your money minus shipping costs. Both the returned item(s) and the packaging have to be in unused, resellable condition.
Any returns should be sent to our
Trowbridge Store:
8 - 12 Islington,
Trowbridge, Wiltshire
BA14 8QE
Tel: 01225 764977
Security
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