18-8 Stainless Steel Coupling Nut
3/8"-16 Thread Size, 1-1/8" Long





Thread Direction | Right Hand |
Material | 18-8 Stainless Steel |
Thread Size | 3/8"-16 |
Length | 1 1/8" |
Width | 1/2" |
Threading | Fully Threaded |
Certificate Form | Digital |
Certificate Type | Material Certificate with Traceable Lot Number |
Coupling Nut Profile | Standard |
Drive Style | External Hex |
Nut Type | Hex, Coupling |
Performance | Corrosion Resistant |
System of Measurement | Inch |
Thread Fit | Unified Standard Class 2B |
Thread Spacing | Coarse |
Thread Type | UNC |
Country of Origin | China, Philippines, Taiwan, United Arab Emirates |
DFARS Compliance | Not Specialty Metals Compliant |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (11/05/2025, 251 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 731816.0000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | No |
Also known as extension nuts, these are commonly used to connect lengths of threaded rod and join threaded parts.
18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
Secure connection
Resist loosening
The information in this 3-D model is provided for reference only.






























