Home / Screws, Nuts & Washers / Machine Screws / Slotted Round Head Screws / BA Slotted Round Head Screws - BS 57 : 1951 / BA Slotted Round Head Screws - Steel / 4BA Slotted Round Head Screws - Steel 4BA Slotted Round Head Screws - Steel Sort: Most popularWhat's newPrice low to highPrice high to lowName A to ZName Z to A 1 Product Sort 4BA x 1/2" Slotted Round Head Screws (BS 57:1951) - Mild Steel £0.40 4BA x 1/2" Slotted Round Head Screws (BS 57:1951) - Mild Steel £0.40 View Product Add to cart Quickview