SING F LTD 4pcs 1/4" BSPT Male Stainless Steel Hex Screw Pipe Block Off Plug Hex Fitting

["Standard Fit: 1/4\" BSPT male hex plug fittings for blocking off unused pipe or port openings.","304 Stainless Steel: Made from corrosion‑resistant 304 SS for durability in plumbing, pneumatic, or hydraulic systems.","Hex Head Design: Hex head allows easy tightening or removal with standard wrench.","Reliable Seal: Provides secure closure to prevent leaks when capped properly.","Wide Use: Suitable for multiple systems requiring BSPT threaded block‑off plugs."]