This is for one pair of two hole flange pins as shown

They are made of carbon steel

They will work on hole size 3/8" to 1 7/16" up to 2 " thick

Has steel quick acting knob, you loosen 1/2 turn, tilt and knob will slide off end.

They have 3/8-16 stainless threaded rod and 45 degree taper

Made in USA