Abstract: An improved golf club is disclosed, in which a desired weight for the club's head is precisely controlled by installing into a hosel cavity a selected hosel plug from a group of such plugs having identical sizes but a range of weights. After the selected hosel plug has been installed, the shaft is inserted into an upper portion of the hosel cavity, above the hosel plug. The plug is configured to have little effect on important club head parameters such as coefficient of restitution and center of gravity, and it also is configured to remain in its installed position even if the club's shaft is removed and replaced. The invention is applicable to golf clubs of all kinds, including metal woods, irons and putters.

Abstract: An improved golf club head is disclosed, in which a desired weight for the head is precisely controlled by installing into a cavity formed in the rear wall of the club head's hollow main body a selected weight cartridge from a group of such cartridges having identical sizes but a range of weights. The selected weight cartridge is installed simply by sliding it into the rear wall cavity, where it is retained by a snap fit, and/or by an interference fit, and/or by a suitable bonding material, without the need for a screw attachment. This greatly simplifies the golf club head's manufacture, thus reducing its cost. The invention is applicable to golf club heads of all kinds, including metal woods, irons and putters.