About Threaded Studs and Rods
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How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Medium-Strength Steel Threaded Rods—Grade B7
Grade B7, these threaded rods have a tensile strength about one and a half times stronger than low-strength steel rods. They meet the pressure and temperature requirements of ASTM A193 and are often used to secure pressure tanks, valves, and flanges.
Blue PTFE-coated steel threaded rods are chemical resistant and have a slippery surface to thread on smoothly.
For technical drawings and 3-D models, click on a part number.
| Lg. | Tensile Strength, psi  | Hardness | Specifications Met | Each | |
1/4"-20 | |||||
|---|---|---|---|---|---|
| 1" | 125,000 | Rockwell C32 | ASTM A193 | 000000000 | 00000 |
| 1 1/2" | 125,000 | Rockwell C32 | ASTM A193 | 000000000 | 0000 |
| 2" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 3" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 4" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
5/16"-18 | |||||
| 1 1/2" | 125,000 | Rockwell C32 | ASTM A193 | 000000000 | 0000 |
| 2" | 125,000 | Rockwell C32 | ASTM A193 | 000000000 | 0000 |
| 3" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 4" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
3/8"-16 | |||||
| 1 1/2" | 125,000 | Rockwell C32 | ASTM A193 | 000000000 | 0000 |
| 2" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 3" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 4" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
1/2"-13 | |||||
| 2" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 2 1/2" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 3" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 4" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 5" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 6" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 6ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
5/8"-11 | |||||
| 3" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 3 1/2" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 4" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 5" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 6" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 6ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
3/4"-10 | |||||
| 3" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 4" | 125,000 | Rockwell C32 | ASTM A193 | 000000000 | 0000 |
| 4 1/2" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 5" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 6" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 7" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 8" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 9" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 1ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 6ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 000000 |
7/8"-9 | |||||
| 5" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 6" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 6ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 000000 |
1"-8 | |||||
| 6" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 7" | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 1ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 6ft. | 125,000 | Rockwell C35 | ASTM A193 | 000000000 | 000000 |
High-Temperature Chemical-Resistant PTFE Threaded Rods
PTFE threaded rods withstand temperatures up to 250° F and resist oil, grease, detergents, and most mineral acids. They're the lowest friction plastic threaded rods we offer, so they thread on smoothly.
For technical drawings and 3-D models, click on a part number.
| Length, ft. | Color | Tensile Strength | Hardness | Max. Temp., °F | Each | |
PTFE Plastic | ||||||
|---|---|---|---|---|---|---|
1/4"-20 | ||||||
| 1 | White | Not Rated | Not Rated | 250° | 000000000 | 000000 |
| 4 | White | Not Rated | Not Rated | 250° | 000000000 | 000000 |
5/16"-18 | ||||||
| 1 | White | Not Rated | Not Rated | 250° | 000000000 | 00000 |
| 4 | White | Not Rated | Not Rated | 250° | 000000000 | 000000 |
3/8"-16 | ||||||
| 1 | White | Not Rated | Not Rated | 250° | 000000000 | 000000 |
| 4 | White | Not Rated | Not Rated | 250° | 000000000 | 000000 |
1/2"-13 | ||||||
| 1 | White | Not Rated | Not Rated | 250° | 000000000 | 000000 |
| 4 | White | Not Rated | Not Rated | 250° | 000000000 | 000000 |
3/4"-10 | ||||||
| 1 | White | Not Rated | Not Rated | 250° | 000000000 | 000000 |
| 4 | White | Not Rated | Not Rated | 250° | 000000000 | 000000 |
High-Temperature PTFE Pipe Nipples and Pipe for Chemicals
- For Use With: Deionized Water, Hydrochloric Acid, Solvents
- Temperature Range: -450° to 550° F
- Specifications Met: ASTM D1710
- Fittings: Use Schedule 80 PTFE Plastic
- Flanges: Use Class 150 PTFE Plastic
This PTFE pipe can withstand a wider temperature range than any of our other plastic pipe for chemicals. It has the chemical resistance to stand up to acid and solvents. Also known as Schedule 80 pipe, it has thick walls for heavy duty industrial applications. The material won’t leach contaminates into the line, so this pipe is commonly used in high-purity processes, such as semiconductor and clean room applications. It has a super-smooth interior for unrestricted flow. Pipe meets ASTM D1710 specifications and testing requirements for material quality.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.
For technical drawings and 3-D models, click on a part number.
To prevent leaks in threaded connections, apply a non-hardening, plastic-compatible sealant to the male threads. Tape or sealants with PTFE are not recommended for plastic-to-plastic threaded connections. When making a threaded connection be careful not to overtighten the threads. To prevent cracks and leaks, finger tighten the fitting, then wrench-tighten one to two turns.
Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.
| Pipe Size | OD | ID | Wall Thick. | Material | Color | Max. Pressure | Each | |
NPT Threads | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/8 | 13/32" | 0.215" | 0.095" | PTFE Plastic | White | 110 psi @ 72° F | 000000000 | 000000 |
| 1/4 | 35/64" | 0.302" | 0.119" | PTFE Plastic | White | 90 psi @ 72° F | 000000000 | 00000 |
| 3/8 | 43/64" | 0.423" | 0.126" | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 1/2 | 27/32" | 0.546" | 0.147" | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 3/4 | 1 3/64" | 0.742" | 0.154" | PTFE Plastic | White | 50 psi @ 72° F | 000000000 | 00000 |
| 1 | 1 5/16" | 0.957" | 0.179" | PTFE Plastic | White | 35 psi @ 72° F | 000000000 | 00000 |
| Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |
To prevent leaks in threaded connections, apply a non-hardening, plastic-compatible sealant to the male threads. Tape or sealants with PTFE are not recommended for plastic-to-plastic threaded connections. When making a threaded connection be careful not to overtighten the threads. To prevent cracks and leaks, finger tighten the fitting, then wrench-tighten one to two turns.
| Pipe Size | OD | ID | Wall Thick. | Material | Color | Max. Pressure | Each | |
1 1/2" | ||||||||
|---|---|---|---|---|---|---|---|---|
NPT Threads | ||||||||
| 1/8 | 13/32" | 0.215" | 0.095" | PTFE Plastic | White | 110 psi @ 72° F | 000000000 | 000000 |
| 1/4 | 35/64" | 0.302" | 0.119" | PTFE Plastic | White | 90 psi @ 72° F | 000000000 | 00000 |
| 3/8 | 43/64" | 0.423" | 0.126" | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 1/2 | 27/32" | 0.546" | 0.147" | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 3/4 | 1 3/64" | 0.742" | 0.154" | PTFE Plastic | White | 50 psi @ 72° F | 000000000 | 00000 |
2" | ||||||||
NPT Threads | ||||||||
| 1/8 | 13/32" | 0.215" | 0.095" | PTFE Plastic | White | 110 psi @ 72° F | 000000000 | 00000 |
| 1/4 | 35/64" | 0.302" | 0.119" | PTFE Plastic | White | 90 psi @ 72° F | 000000000 | 00000 |
| 3/8 | 43/64" | 0.423" | 0.126" | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 1/2 | 27/32" | 0.546" | 0.147" | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 3/4 | 1 3/64" | 0.742" | 0.154" | PTFE Plastic | White | 50 psi @ 72° F | 000000000 | 00000 |
| 1 | 1 5/16" | 0.957" | 0.179" | PTFE Plastic | White | 35 psi @ 72° F | 000000000 | 00000 |
3" | ||||||||
NPT Threads | ||||||||
| 1/8 | 13/32" | 0.215" | 0.095" | PTFE Plastic | White | 110 psi @ 72° F | 000000000 | 00000 |
| 1/4 | 35/64" | 0.302" | 0.119" | PTFE Plastic | White | 90 psi @ 72° F | 000000000 | 00000 |
| 3/8 | 43/64" | 0.423" | 0.126" | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 1/2 | 27/32" | 0.546" | 0.147" | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 3/4 | 1 3/64" | 0.742" | 0.154" | PTFE Plastic | White | 50 psi @ 72° F | 000000000 | 00000 |
| 1 | 1 5/16" | 0.957" | 0.179" | PTFE Plastic | White | 35 psi @ 72° F | 000000000 | 00000 |
| Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |