This Winchester manufactured forearm adjustment swivel bow screw with a rounded top head is for the pre-64 model 70 bolt action Target rifle and mounts on top of the bakelite base and through the swivel holding both items to the firearm. This screw is in very good condition with light slot wear. (file photo)

Note: Winchester pre-64 model 70 bolt action Target rifles with the following serial numbers have been observed with this part: 411127 & 424218