@@ -116,9 +116,9 @@
 		install(screw, 0.5)
 		minetest.register_craftitem(screw, {
 			description = sorcery.lib.str.capitalize(name) .. ' Screw';
 			inventory_image = sorcery.lib.image('sorcery_screw.png'):multiply(sorcery.lib.color(metal.tone)):render();
-			groups = { metal = 1; screw = 1; sorcery_screw = 1; sorcery_tech_component = 1; };
+			groups = { metal = 1; screw = 1; sorcery_screw = metal.hardness; sorcery_tech_component = 1; };
 			_sorcery = {
 				material = {
 					id = name, data = metal;
 					powder = powder;