175 Piece Inch Grease Fittings AssortmentGrease fittings, also known as zerk fittings or grease nipples, serve as lubrication points on bearing housings or other mechanical components. Our storage bins and assortments are made from cold rolled steel and finished with a rust and acid resistant baked enamel, they offer superior organization for all your small parts. When combined with out inventory control software and computer generated , barcoded labels, these units make managing your