It is used for oil injection port of underwater pump etc, but when I bought genuine parts of the manufacturer it costs me a shipping fee, so I did it. It is hard to find an appropriate size from among general-purpose parts, but it is not cheap because it is cheap.
The gap between the through hole and the bolt was large, the grease was leaking, but it was improved by using the seal washer. If possible, I think that workability has improved if there is a seal washer for M18.
How to Buy (Negara pengiriman : Malaysia, Singapura, Thailand, and more)
Semua produk tawaran MonotaRO Singapura tertakluk pada undang-undang, peraturan, dan standard pensijilan tempatan Jepun. Sila pastikan ia mematuhi atau tidak mematuhi keperluan negara anda dan/atau organisasi antarabangsa, termasuk tetapi tidak terhad pada, Pensijilan UL, sistem Sijil Wajib Halal, dan Halal.
MonotaRO Co.,Ltd. Hyogo Public Safety Commission No.631330800020