PTFE-Coated Steel Threaded Rod and Hex Nut Kit
for Class 1500 Size 4 Pipe Flange



Hex Nut | |
Nut Type | Hex |
Hex Nut Profile | Heavy |
Drive Style | External Hex |
Thread Size | 1 1/4"-8 |
Thread Fit | Unified Standard Class 2B |
Thread Spacing | Fine |
Thread Type | UN |
Thread Direction | Right Hand |
Width | 2" |
Height | 1 7/32" |
Specifications Met | ASTM A194 |
For Use With | Pipe Flanges |
Fastener Strength Rating | Medium |
For Flange Class | 1500 |
For Pipe Size | 4 |
Threaded Rod | |
Thread Size | 1 1/4"-8 |
Thread Fit | Unified Standard Class 2A |
Thread Spacing | Fine |
Thread Type | UN |
Threading | Fully Threaded |
Thread Direction | Right Hand |
Length | 7 3/4" |
Tensile Strength | 125,000 psi |
Specifications Met | ASTM A193 |
Hardness | Rockwell C35 |
Fastener Strength Grade/Class | ASTM Grade B7 |
Number of Threaded Rods Included | 8 |
Number of Nuts Included | 16 |
Color | Blue |
Finish | PTFE Coated |
For Flange Material | Steel |
Material | Steel |
Performance | Corrosion Resistant, High Pressure |
System of Measurement | Inch |
Country of Origin | China |
DFARS Compliance | Not Specialty Metals Compliant |
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 | 731815.9000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | No |
These kits include the rods and nuts you need to connect standard-size pipe flanges. Their heavy duty material and construction keep tanks, valves, and flanges tightly sealed under heavy pressure. With a 10% wider profile than standard hex nuts, these hex nuts spread force over a larger area and can handle extra torque during installation. The rods are fully threaded to distribute and absorb high levels of clamping force. To ensure your pipe flange connection is tight, add a pipe flange gasket to your installation. These rods and nuts meet a number of rigorous industry specifications for high-pressure performance, high-temperature performance, and dimensional requirements.
Medium-Strength Fastener—With a tensile strength of 125,000 psi, these rods are strong enough for most industrial applications, such as anchoring machinery and connecting pipe flanges. They are about twice as strong as low-strength steel rods.
Corrosion-Resistant PTFE-Coated Steel—A PTFE coating protects the steel from corrosion and pitting when exposed to chemicals, such as those found in cleaners and sanitizers. The coating is also slippery to thread on smoothly.
The information in this 3-D model is provided for reference only.

























