Smith & Wesson K frame yoke screw, blue $10.00 Part 34 on the exploded diagram. Used, excellent condition blue yoke screw from a 19-4, K frame revolver. Will fit other models of K frame revolvers. Out of stock Category: Smith & Wesson Related products Smith & Wesson J Frame Shooters Pack $19.97 S&W 59/459/5904 series XP magazine springs 3 pak $34.97