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If you work with hydraulic lines, air compressors, fuel systems, or any pipe fitting that needs a secure seal, you know the frustration of finding the right plug. These male allen socket pipe plugs are made from A2 304 stainless steel – tough, rust‑resistant, and ready for both PT (British taper) and NPT (American taper) threads. Sizes run from tiny 1/16" up to 2", so you can cap off unused ports, test pressure points, or seal threaded holes permanently. The internal hex (Allen) drive lets you tighten them flush or recessed with a standard hex key, no bulky wrench needed. Great for industrial machinery, plumbing prototypes, automotive work, or just capping a water line in your shop.
🔧 Male thread design with Allen socket drive – No exposed hex head. Use a standard hex key to tighten the plug flush with or below the surface. Clean, professional finish.
🛡️ A2 304 stainless steel – corrosion resistant – Won’t rust like carbon steel. Perfect for damp environments, outdoor equipment, or fluid handling systems.
📏 Two thread standards: PT & NPT (1/16" to 2") – PT (British Standard Pipe Taper) and NPT (National Pipe Taper) are both tapered threads for pressure‑tight seals. Choose the standard your system uses.
🔩 Full size range – 10 sizes per standard – Available: 1/16", 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2". One source for almost any pipe plug you need.
🧪 Tapered threads seal without extra sealant (but sealant helps) – The taper creates a metal‑to‑metal interference fit. For high pressure or critical applications, use PTFE tape or pipe dope.
🏭 Wide industrial & DIY application – Use on hydraulic manifolds, air compressor ports, fuel tanks, test gauges, water lines, or as a stop for unused NPT/PT fittings.
| Product Type | Male Allen socket pipe plug / throat screw / end cap stopper |
|---|---|
| Material | A2 304 Stainless Steel |
| Thread Standards Available | PT (British Standard Pipe Taper) and NPT (National Pipe Taper) |
| Size Range (both PT & NPT) | 1/16", 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" |
| Drive Type | Internal Hex (Allen socket) |
| Head Style | Countersunk / flush‑fitting (no external hex) |
| Sealing Mechanism | Tapered threads for pressure‑tight seal (PTFE tape recommended for high pressure) |
| Typical Applications | Hydraulic systems, pneumatic lines, fuel systems, water pipes, test ports, manifold blanking |
