Disclosed is a horseshoe stud 1 with a ground-engaging part 3, and a horseshoe-engaging part 5 arranged to be inserted into and to engage with a stud hole 15 in a horseshoe 13. The horseshoe-engaging part 5 includes a tapered external thread 7. The tapered external thread 7 may enable the stud to engage with a worn stud hole in a horseshoe. The taper may be of an angle θ of between 0.1-10 degrees relative to line A. The stud may be stainless steel. There may be means to facilitation rotation of the stud, such as a groove 9 in the ground-engaging part. The ground engaging part may have a tapered, flat, rounded or crenelated form. Also disclosed is a method of forming a horseshoe stud.