Left-Hand-Thread Coupling Nut
3/8"-16 Thread Size
Thread Direction | Left Hand |
Fastener Strength Rating | Low |
Material | Zinc-Plated Steel |
Thread Size | 3/8"-16 |
Length | 1 3/4" |
Width | 5/8" |
Threading | Fully Threaded |
Coupling Nut Profile | Standard |
Drive Style | External Hex |
Nut Type | Hex, Coupling |
System of Measurement | Inch |
Thread Fit | Unified Standard Class 2B |
Thread Spacing | Coarse |
Thread Type | UNC |
Country of Origin | United States |
DFARS Compliance | Specialty Metals COTS-Exempt |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (01/21/2025, 247 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 731816.0000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | Yes |
Pair with left-hand threaded rods, and turn to the left to tighten. Also known as extension nuts, these are commonly used to connect lengths of threaded rod and join threaded parts.
Low-Strength Steel—Rated Grade 2 or lower, these are about half as strong as medium-strength steel coupling nuts. Use them with threaded rods that have a comparable strength rating to avoid stripping threads during installation.
Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
The information in this 3-D model is provided for reference only.