Chrome Air Cleaner Chrome Head Wing Stud. We have had a lot of requests for a nicer air cleaner wing stud so here you go! The wing tips are 1" each. The stud itself is 1/4" coarse thread x 2" long (not counting the wing). This listing is for 1 stud. I put 2 in the photo to show both sides. We have ten different styles of air cleaners this works on in stock.