SMC 10-KQ2S04-01NS | Clean Room Metric One-Touch Fitting KQ2S Series Hex Socket Head Male Connector 4mm Tube x 1/8" NPT Sealant Pack of 10
SMC
$28.00
The SMC 10-KQ2S04-01NS is a clean room specification metric-size one-touch fitting from the KQ2S series, configured as a hexagon socket head male connector, sold in a pack of 10. Part number decoded: KQ2S = one-touch hex socket head male connector, 04 = 4mm tube OD (metric), 01 = 1/8" NPT male thread, N = factory-applied thread sealant, S designation confirmed by series name. The 4mm tube with 1/8" NPT thread bridges metric tubing systems with inch-threaded ports.
The KQ2S hex socket head male connector is the most frequently specified fitting in clean room pneumatic systems because it provides the fundamental tube-to-port connection with a low-profile head. The 4mm tube is the smallest standard metric size, used for pilot signals, small cylinder connections, miniature valve ports, and pressure switch connections. The hex socket head enables Allen key tightening in tight spaces where open-end wrench access is impossible. Factory sealant (N) eliminates PTFE tape, preventing tape fragment particles in clean room air systems.
Sold in a pack of 10 for equipment builds. For the same 4mm tube with M5 metric thread, see KQ2S04-M5NS. For larger tube sizes with 1/8" NPT, KQ2S06-01NS (6mm) and KQ2S08-01NS (8mm) step up in flow capacity. For elbow connections at 4mm, the KQ2VL or KQ2L series provide 90-degree routing. For stainless steel, the KGS series replaces nickel-plated brass. Clean series (10-) fluorine grease, Particle Grade 1. RoHS compliant.
- Series:
- 10-KQ2S (Clean Room)
- Product Type:
- Male Connector (Hex Socket Head)
- Fitting Style:
- One-Touch Push-In
- Material:
- Nickel-Plated Brass
- Tube OD:
- 4mm (Metric)
- Thread Size:
- 1/8" NPT
- Thread Sealant:
- Factory Applied (N)
- Pack Quantity:
- 10
- Clean Room Grade:
- Particle Generation Grade 1
- Certifications:
- RoHS
