[Grease Zerk Caps]: Grease fittings, grease zerk assortment, lock and lube grease coupler are small hydraulic check valves used on bearings and similar mechanical assemblies feed lubricant to your bearings and other mechanical devices without need for disassembly.
[Precision Craftsmanship]: Grease zerk fittings are equipped with high elasticity springs, precision machined beads, Unified screw threads. Good airtightness, high pressure resistance, and no oil leakage. Excellent production process ensures quick grease injection every time, making it easy and labor-saving.
[Materials]: Grease fittings made of high-strength carbon steel material with galvanized anti-corrosion process, which has good corrosion resistance and durability easy to replace. Suitable for indoor, outdoor and high temperature, high salinity working environment.
[Application]: Grease zerk assortment Grease fitting tool suitable for lubricating engineering machinery such as excavators, tractors, cranes, large motors, harvesters, ships, trucks, automobiles, motorcycles, and other transportation vehicles, as well as agricultural machinery, industrial machinery, and other equipment.
[Sizes & Packing]: Size 3/8"-24 Straight 4pcs, 45 Degree 4pcs, 90 Degree 4pcs. Zerk grease fittings are packed in a good plastic container with a lock for storage you can easily store and find the size you need.