Zinc and blue-passivated and case-hardened. For use with high density fibre boards. Tri-Lock threadform and shank incorporate the benefits of a single coarse thread with a twin thread start. Spiral point, part thread and under-head ribs for self-countersinking. Flush, neat fix will not work loose, prevents squeaky boards. No pilot hole necessary. Ideal for all flooring such as softwood, fibreboard and hardwood. Countersunk PZ Head Removable

Price: £9.89 from Screwfix

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Stockist	Product Name	Price
Screwfix	Floor-Tite Screws 4.2 x 55mm 200 Pack	£9.89	Visit Store