Found these whilst looking for some fencing nails for a job I have to do. £10 for 4kg seemed a good enough price but RTC £5.99
Most single packs are £3.99 for a kilo so £15.96 worth of mails if you look at it that way.
0.5kg bags of 3 x 13 and 3 x 20mm ELH clout, 2.65 x 30 and 2.65 x 40mm galvanised jagged plasterboard, 2.65 x 30 and 2.65 x 40mm galvanised clout, 3.75 x 75mm galvanised round and 4.50 x 100mm galvanised.
I picked up 1 of the 2 packs at Mansfield, Queens drive Nottingham has one so few and far between but worth picking a pack up if you are going near a store.