We have spent the last week making up this plastic shed from Lifetime (like the worst version of IKEA). We have built it up onto a concrete base. There are options in each of the four corners inside to pop out a plastic circle and fix into the concrete pad. Probably wise but no fixings were included and I'm unsure what to use. Can anyone suggest anything please from Screwfix/Toolstation so I can get it bolted down.
Thank you!