Groz grease nipples are manufactured to the most stringent quality standards - TS16949 approved. Fitting profile and dimensions are accurately controlled and conform to SAE, DIN,BS, JIS & IS standards. Grease fittings are heat treated to SAE J534 specification with hardness on greasing end to a minimum of 83 on Rockwell 15N scale with a case depth of 0.005" (0.13mm) to 0.009" (0.23mm). Fittings with ball check use heat treated springs for increased life. Steel fittings are plated in yellow zinc with a plating thickness of 0.0002" (5 microns) confirming to SAE J534 specification and have a guaranteed salt spray life of over 75 hours to red rust.
| Part No. | Description | Thread length | Shank length | Overall length | Hex size |
| ZGFTBHC1827 | 1/8" NPT button head coupler | 4.76mm min | 8.7mm | 19mm | 5/8" |
| ZGFTBHC1418 | 1/4" NPT button head coupler | 6.75mm min | 10.7mm | 21mm | 5/8" |
| ZGFTBHC1828 | 1/8" BSP button head coupler | 4mm min | 7.4mm | 15.3mm | 15.24mm |
| ZGFTBHC1419 | 1/4" BSP button head coupler | 7mm min | 10.7mm | 21mm | 15.24mm |
