Connections for Hydraulic Fluid Power－ Ports and Stud Ends with Metric Threads and O-ring Sealing - Part 4 : Hex Plugs
GB /T 2878.4 (PLEH) - 2011 液压传动连接 带米制螺纹和O形圈密封的油口和螺柱端 第4部分：外六角螺塞
See all versions and complete specifications: Connections for Hydraulic Fluid Power－ Ports and Stud Ends with Metric Threads and O-ring Sealing - Part 4 : Hex Plugs — Full Specification Page
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| M8 | 1 | 17.5 | 16.5 | 9.5 | 1.6 | 17 | 14 |
| M10 | 1.5 | 20 | 19 | 11 | 2.5 | 19.5 | 19 |
| M12 | 1.5 | 24.5 | 23.5 | 14 | 2.5 | 24 | 24 |
| M14 | 1.5 | 26.5 | 25.5 | 15 | 2.5 | 26 | 27 |
| M16 | 2 | 33.5 | 32.5 | 18.5 | 2.5 | 33 | 36 |
| M18 | 2 | 37 | 36 | 19 | 3 | 36.5 | 50 |
| M20 | 2 | 45 | 44 | 24 | 3 | 44.5 | 65 |
Request detailed technical specifications, material certifications, and availability information for your application requirements. Our engineering team can provide product recommendations, custom specifications, and technical documentation.
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.