These are stainless version of our 3/8" x 16 thread socket head cap screws (we call them bolts) that you see in climbing gyms. Tighten them with a standard 5/16 hex (allen head) t-wrench or impact bit. These work with stainless climbing wall t-nuts.
Recommend Stainless Steel Bolts and Stainless Steel T-Nuts instead.
Select your sizes and