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About Threaded Studs and Rods
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About Hex Head Screws and Bolts
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Stainless Steel Hex Screw and Nut Kits for Pipe Flanges
Stainless Steel with Blue PTFE-Coated Nuts
Use these kits to connect standard-size stainless steel pipe flanges for ANSI Class 150 or 300. They meet ASTM specifications for material quality, and the dimensions meet ASME specifications. Length of screws is measured from under the head.
316 stainless steel kits are more corrosion resistant than 18-8 stainless steel and have excellent resistance to chemicals and salt water. They may be mildly magnetic. Some kits have blue PTFE-coated nuts. This coating is slippery, chemical-resistant, and prevents galling. It also helps nuts thread smoothly.
For technical drawings and 3-D models, click on a part number.
Screw | Nut | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Pipe Size | Lg. | Min. Thread Lg. | Head Wd. | Head Ht. | Tensile Strength, psi | Specifications Met | Wd. | Ht. | Specifications Met | For Max. Pressure | Each | |
316 Stainless Steel with Blue-PTFE-Coated Nuts for Class 150 Stainless Steel Flanges | ||||||||||||
5/8"-11 | ||||||||||||
| 3 | 3" | 1 1/2" | 15/16" | 13/32" | 80,000 | ASME B18.2.1, ASTM F593 | 15/16" | 35/64" | ASME B18.2.2, ASTM F594 | 270 psi @ 72° F | 000000000 | 000000 |
| 4 | 3" | 1 1/2" | 15/16" | 13/32" | 80,000 | ASME B18.2.1, ASTM F593 | 15/16" | 35/64" | ASME B18.2.2, ASTM F594 | 270 psi @ 72° F | 000000000 | 00000 |
3/4"-10 | ||||||||||||
| 6 | 3 1/4" | 1 3/4" | 1 1/8" | 15/32" | 80,000 | ASME B18.2.1, ASTM F593 | 1 1/8" | 41/64" | ASME B18.2.2, ASTM F594 | 270 psi @ 72° F | 000000000 | 00000 |
| 8 | 3 1/2" | 1 3/4" | 1 1/8" | 15/32" | 80,000 | ASME B18.2.1, ASTM F593 | 1 1/8" | 41/64" | ASME B18.2.2, ASTM F594 | 270 psi @ 72° F | 000000000 | 00000 |
7/8"-9 | ||||||||||||
| 10 | 3 3/4" | 2" | 1 5/16" | 35/64" | 80,000 | ASME B18.2.1, ASTM F593 | 1 5/16" | 3/4" | ASME B18.2.2, ASTM F594 | 270 psi @ 72° F | 000000000 | 000000 |
| 12 | 4" | 2" | 1 5/16" | 35/64" | 80,000 | ASME B18.2.1, ASTM F593 | 1 5/16" | 3/4" | ASME B18.2.2, ASTM F594 | 270 psi @ 72° F | 000000000 | 000000 |
1"-8 | ||||||||||||
| 14 | 4 1/2" | 2 1/4" | 1 1/2" | 39/64" | 80,000 | ASME B18.2.1, ASTM F593 | 1 1/2" | 55/64" | ASME B18.2.2, ASTM F594 | 270 psi @ 72° F | 000000000 | 000000 |
| 16 | 4 1/2" | 2 1/4" | 1 1/2" | 39/64" | 80,000 | ASME B18.2.1, ASTM F593 | 1 1/2" | 55/64" | ASME B18.2.2, ASTM F594 | 270 psi @ 72° F | 000000000 | 000000 |
Medium-Strength Steel Threaded Rods—Grade B7
These Grade B7 threaded rods 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.
Blue PTFE-Coated Steel
| Lg. | Tensile Strength, psi | Hardness | Specifications Met | Each | |
1/4"-20 | |||||
|---|---|---|---|---|---|
| 1" | 120,000 | Rockwell C32 | ASTM A193 | 000000000 | 00000 |
| 1 1/2" | 120,000 | Rockwell C32 | ASTM A193 | 000000000 | 0000 |
| 2" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 3" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 4" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 3ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
5/16"-18 | |||||
| 1 1/2" | 120,000 | Rockwell C32 | ASTM A193 | 000000000 | 0000 |
| 2" | 120,000 | Rockwell C32 | ASTM A193 | 000000000 | 0000 |
| 3" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 4" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
3/8"-16 | |||||
| 1 1/2" | 120,000 | Rockwell C32 | ASTM A193 | 000000000 | 0000 |
| 2" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 3" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 4" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
1/2"-13 | |||||
| 2" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 2 1/2" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 3" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 4" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 5" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 6" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 6ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
5/8"-11 | |||||
| 3" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 3 1/2" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 4" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 5" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 6" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 6ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
3/4"-10 | |||||
| 3" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 4" | 120,000 | Rockwell C32 | ASTM A193 | 000000000 | 0000 |
| 4 1/2" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 5" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 6" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 7" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 8" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 9" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 1ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 6ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
7/8"-9 | |||||
| 5" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 6" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 0000 |
| 1ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 6ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
1"-8 | |||||
| 6" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 7" | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 1ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 3ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 00000 |
| 6ft. | 120,000 | Rockwell C35 | ASTM A193 | 000000000 | 000000 |