HOLO-KROME 10006 1/4"-18 NPTF ソケットプレッシャープラグ | ドライシール3/4"テーパー | 合金鋼サーマルブラックオキサイド (100個/パッケージ)

The hex socket drive made seating these into a tight manifold port way easier than wrestling with a wrench in cramped spaces. I used a few without any tape and they sealed up dry on the first try, which is exactly what I needed for a pneumatic test rig.

Finally got around to testing these plugs in a pneumatic manifold and the hex socket drive made installation effortless, even in tight spots. The threads cut clean and held pressure without any tape, exactly what I needed.

The black oxide finish on these plugs is a nice touch—makes them easy to spot in a crowded toolbox. They thread in smoothly and hold pressure without needing any tape, which saved me time on a pneumatic line repair.