Grease Fittings

Lead screw, Chisel, Bolt Head, Hammer Head, File, Hacksaw Blade,Letter Punch, Rock Drill, Cutter, long, Pliers, Tip of Screw Driver,Link,Hook, Eye Bolt, Track Link, Track Pin,Track Shoe Bolt, Nut,Screw, Wrench, Spanner, Knife, Hopper, Type writer Key, Grease Nipples, Straight Grease Fitting, etc.Any desired hardness pattern could be achieved.