Smith & Wesson K frame sideplate screw, blue $5.00 Part 33 on the exploded diagram. Used, excellent condition blue sideplate 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 K frame mainspring $15.00 Smith & Wesson K / L / N Frame Standard Shooters Pack $29.97