the grease nipple/grease fitting:

Size:M6x1,M8x1,M10x1,M12x1,M13x1,M14x1.

the inch size:G1/4",R1/8",1/4"UNF,NPT,BSPE etc

Total:15mm,15.5mm

Thread:1mm,1.25mm,1.5mm,1.75mm

Thread long:5mm or 5.5mm

Hexagon:7mm,9mm,11mm,12mm,14mm,16mm

plate:white zinc, nickel,yellow zinc,chromium

Packing:50pcs/box,100pcs/box,

HRC:15-45