Premiere Studs Self Cleaning W3/8 21mm Pointed

Pointed studs featuring four flat sides and an extra strong, wear-resistant
steel tip. The vertical grooves in the thread have a self-cleaning effect. This
makes installation easier and quicker. The studs are made of galvanized steel,
which prevents rusting. This stud type is particularly suitable for extra grip
on hard surfaces. Length stud head: 21 mm. Width stud head: 12 mm. Length screw
thread: 6 mm. Whitworth thread size: W3/8. Set of 10 pieces.