Description: M6 M8 M10 thread grease nipple fittings. Straight design. Made of zinc plated iron material to ensure long service life. The grease nipple mouth is flat and smooth,great for fastening. The thread is deeply,thread pitch more sturdy,it will not slippery when rotating. One sprung ball check prevents entrance of dirt. Resistant to high temperature,no leakage,convenience to replace,versatility. Suitable for most automotive,motorcycle,truck,and industrial applications. Note:Please check the size and make sure this is the correct part for your unit. Package Include: 1 x M6 Grease Nipple 1 x M8 Grease Nipple 1 x M10 Grease Nipple