1/4" BSW Nut Hex BS193:1929 in EN1A mild steel. Thicker hex than modern fasterners but with the same width.Full bearing, single chamfer.TPI: 201/4" BSW Nut Hex BS193:1929£0.75PriceFinish*SelectDiameter*SelectGrade*SelectQuantity*Add to CartDeliveryDelivery costs are based on the weight of your order UK Delivery: 3 to 5 business days International: 5 to 7 business days