Home / Plumbing / Compression / Large F 1″ Brass Backnut Large F 1″ Brass Backnut£0.07 This product is available for pickup in Orpington. Large F 1" Brass Backnut quantity Delivery Store Collection SKU: 35310WC01 Category: Compression Product ID: 6940 Reviews Related products 1/2″/15Mm Blank Nut £0.54 Add to basket Sale! 20Mm X 15Mm Poly Shank Adaptor £7.96 Original price was: £7.96.£5.99Current price is: £5.99. Add to basket 3/4″ Bsp Blank Nut £0.94 Add to basket Sale! 35Mmx15Mm 3 Part Reducing Set £4.24 Original price was: £4.24.£3.99Current price is: £3.99. Add to basket