From Lowbrow Customs: Mount your solo seat easily with these weld-on solo seat spring mounts. Made of 1018 cold rolled steel for easy welding, they are 1 inch diameter with a 3/8 inch shaft for the spring to sit over. They are coped at 1 inch to fit standard size frame tubing, but can easily be enlarged to fit larger 1-1/4 inch tube if necessary. They come with a pair of 1/8 inch thick leather washers to keep your springs from squeaking, as well as two spring cotter pins to hold your springs in place on the cross-drilled shafts. Price is for a set of two mounts, spring cotter pins and leather washers. Made in Ohio, USA. These are for mounting coil springs only, for hairpin style springs you want to use the . Check out more on our site now.