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About Threaded Studs and Rods
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About Rounded Head Screws
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About Hex Head Screws and Bolts
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About Flat Head Screws
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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 |
Plastic Hex Head Screws
Fully Threaded
Plastic screws are chemical and oil resistant, nonconductive, and lightweight. Not recommended for high-strength fastening. Length is measured from under the head.
PTFE are our most corrosion-resistant plastic screws. They withstand salt water and acids, won't absorb moisture, and perform better than other plastic screws in extreme temperatures.
Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch. Fine threads are closely spaced to prevent loosening from vibration.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing | Wd. | Ht. | Color | Temperature Range, °F | Tensile Strength | Each | |
PTFE Plastic | |||||||||
6-32 | |||||||||
| 1/4" | Fully Threaded | Coarse | 1/4" | 3/32" | White | -100° to 500° | Not Rated | 000000000 | 00000 |
| 3/8" | Fully Threaded | Coarse | 1/4" | 3/32" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 1/2" | Fully Threaded | Coarse | 1/4" | 3/32" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 3/4" | Fully Threaded | Coarse | 1/4" | 3/32" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 1/4" | 3/32" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
8-32 | |||||||||
| 1/4" | Fully Threaded | Coarse | 1/4" | 7/64" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 3/8" | Fully Threaded | Coarse | 1/4" | 7/64" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 1/2" | Fully Threaded | Coarse | 1/4" | 7/64" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 3/4" | Fully Threaded | Coarse | 1/4" | 7/64" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
10-32 | |||||||||
| 1/4" | Fully Threaded | Fine | 5/16" | 1/8" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 3/8" | Fully Threaded | Fine | 5/16" | 1/8" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 1/2" | Fully Threaded | Fine | 5/16" | 1/8" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 3/4" | Fully Threaded | Fine | 5/16" | 1/8" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 1" | Fully Threaded | Fine | 5/16" | 1/8" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
1/4"-20 | |||||||||
| 1/2" | Fully Threaded | Coarse | 7/16" | 3/16" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 3/4" | Fully Threaded | Coarse | 3/8" | 3/16" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 3/4" | Fully Threaded | Coarse | 7/16" | 3/16" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 3/8" | 3/16" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 7/16" | 3/16" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
5/16"-18 | |||||||||
| 3/4" | Fully Threaded | Coarse | 1/2" | 15/64" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 1/2" | 15/64" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 1/2" | 15/64" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
3/8"-16 | |||||||||
| 1" | Fully Threaded | Coarse | 9/16" | 17/64" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 9/16" | 17/64" | White | -100° to 500° | Not Rated | 000000000 | 0000 |
| 2" | Fully Threaded | Coarse | 9/16" | 17/64" | White | -100° to 500° | Not Rated | 000000000 | 00000 |
| 2 1/2" | Fully Threaded | Coarse | 9/16" | 17/64" | White | -100° to 500° | Not Rated | 000000000 | 00000 |
18-8 Stainless Steel Pan Head Phillips Screws
PTFE Coated
18-8 stainless steel pan head screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head. Partially threaded screws thread length may vary from the minimum thread length published to fully threaded.
PTFE-coated stainless steel screws won’t stick or bind as you thread them into a hole.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Head Dia. | Head Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
PTFE-Coated 18-8 Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
6-32 | |||||||||
| 1/4" | Fully Threaded | 0.270" | 0.097" | No. 2 | 70,000 | ASME B18.6.3 | 50 | 000000000 | 000000 |
| 3/8" | Fully Threaded | 0.270" | 0.097" | No. 2 | 70,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 1/2" | Fully Threaded | 0.270" | 0.097" | No. 2 | 70,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 3/4" | Fully Threaded | 0.270" | 0.097" | No. 2 | 70,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
8-32 | |||||||||
| 1/4" | Fully Threaded | 0.322" | 0.115" | No. 2 | 70,000 | ASME B18.6.3 | 50 | 000000000 | 0000 |
| 3/8" | Fully Threaded | 0.322" | 0.115" | No. 2 | 70,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 1/2" | Fully Threaded | 0.322" | 0.115" | No. 2 | 70,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 3/4" | Fully Threaded | 0.322" | 0.115" | No. 2 | 70,000 | ASME B18.6.3 | 25 | 000000000 | 00000 |
10-32 | |||||||||
| 3/8" | Fully Threaded | 0.373" | 0.133" | No. 2 | 70,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 1/2" | Fully Threaded | 0.373" | 0.133" | No. 2 | 70,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 3/4" | Fully Threaded | 0.373" | 0.133" | No. 2 | 70,000 | ASME B18.6.3 | 25 | 000000000 | 00000 |
| 1" | Fully Threaded | 0.373" | 0.133" | No. 2 | 70,000 | ASME B18.6.3 | 25 | 000000000 | 00000 |
1/4"-20 | |||||||||
| 1/2" | Fully Threaded | 0.492" | 0.175" | No. 3 | 70,000 | ASME B18.6.3 | 25 | 000000000 | 00000 |
| 3/4" | Fully Threaded | 0.492" | 0.175" | No. 3 | 70,000 | ASME B18.6.3 | 10 | 000000000 | 0000 |
| 1" | Fully Threaded | 0.492" | 0.175" | No. 3 | 70,000 | ASME B18.6.3 | 10 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | 0.492" | 0.175" | No. 3 | 70,000 | ASME B18.6.3 | 10 | 000000000 | 00000 |
Extreme-Temperature Chemical-Resistant
PTFE Decorative Round Head Slotted Screws
PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F. They are nonconductive, lightweight, and resist wear due to their slippery surface. The tall, domed head provides a finished appearance. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Head Dia. | Head Ht. | Temperature Range, °F | Color | Each | |
PTFE Plastic | |||||||
|---|---|---|---|---|---|---|---|
4-40 | |||||||
| 1/4" | Fully Threaded | 0.211" | 0.086" | -100° to 500° | White | 000000000 | 00000 |
| 3/8" | Fully Threaded | 0.211" | 0.086" | -100° to 500° | White | 000000000 | 0000 |
| 5/8" | Fully Threaded | 0.211" | 0.086" | -100° to 500° | White | 000000000 | 0000 |
6-32 | |||||||
| 1/4" | Fully Threaded | 0.260" | 0.103" | -100° to 500° | White | 000000000 | 0000 |
| 3/8" | Fully Threaded | 0.260" | 0.103" | -100° to 500° | White | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.260" | 0.103" | -100° to 500° | White | 000000000 | 0000 |
| 3/4" | Fully Threaded | 0.260" | 0.103" | -100° to 500° | White | 000000000 | 0000 |
| 1" | Fully Threaded | 0.260" | 0.103" | -100° to 500° | White | 000000000 | 0000 |
8-32 | |||||||
| 1/4" | Fully Threaded | 0.309" | 0.120" | -100° to 500° | White | 000000000 | 0000 |
| 3/8" | Fully Threaded | 0.309" | 0.120" | -100° to 500° | White | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.309" | 0.120" | -100° to 500° | White | 000000000 | 0000 |
| 3/4" | Fully Threaded | 0.309" | 0.120" | -100° to 500° | White | 000000000 | 0000 |
| 1" | Fully Threaded | 0.309" | 0.120" | -100° to 500° | White | 000000000 | 0000 |
10-32 | |||||||
| 3/8" | Fully Threaded | 0.359" | 0.137" | -100° to 500° | White | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.359" | 0.137" | -100° to 500° | White | 000000000 | 0000 |
| 3/4" | Fully Threaded | 0.359" | 0.137" | -100° to 500° | White | 000000000 | 0000 |
| 1" | Fully Threaded | 0.359" | 0.137" | -100° to 500° | White | 000000000 | 0000 |
1/4"-20 | |||||||
| 3/4" | Fully Threaded | 0.472" | 0.175" | -100° to 500° | White | 000000000 | 0000 |
| 1" | Fully Threaded | 0.472" | 0.175" | -100° to 500° | White | 000000000 | 0000 |
Metric Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws
These PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F. They are nonconductive, lightweight, and resist wear due to their slippery surface. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
| Lg., mm | Threading | Head Dia., mm | Head Ht., mm | Temperature Range, °F | Color | Specifications Met | Each | |
PTFE Plastic | ||||||||
|---|---|---|---|---|---|---|---|---|
M3 × 0.5 mm | ||||||||
| 5 | Fully Threaded | 5.60 | 1.80 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 00000 |
| 6 | Fully Threaded | 5.60 | 1.80 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 8 | Fully Threaded | 5.60 | 1.80 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 10 | Fully Threaded | 5.60 | 1.80 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 12 | Fully Threaded | 5.60 | 1.80 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
M4 × 0.7 mm | ||||||||
| 6 | Fully Threaded | 8.00 | 2.40 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 8 | Fully Threaded | 8.00 | 2.40 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 10 | Fully Threaded | 8.00 | 2.40 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 12 | Fully Threaded | 8.00 | 2.40 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 16 | Fully Threaded | 8.00 | 2.40 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
M5 × 0.8 mm | ||||||||
| 8 | Fully Threaded | 9.50 | 3.00 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 10 | Fully Threaded | 9.50 | 3.00 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 12 | Fully Threaded | 9.50 | 3.00 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 16 | Fully Threaded | 9.50 | 3.00 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 20 | Fully Threaded | 9.50 | 3.00 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
M6 × 1 mm | ||||||||
| 10 | Fully Threaded | 12.00 | 3.60 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 12 | Fully Threaded | 12.00 | 3.60 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 16 | Fully Threaded | 12.00 | 3.60 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 20 | Fully Threaded | 12.00 | 3.60 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
| 25 | Fully Threaded | 12.00 | 3.60 | -110° to 500° | White | ASME B18.6.7M | 000000000 | 0000 |
Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws
PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F. They are nonconductive, lightweight, and resist wear due to their slippery surface. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Head Dia. | Head Ht. | Temperature Range, °F | Color | Specifications Met | Each | |
PTFE Plastic | ||||||||
|---|---|---|---|---|---|---|---|---|
4-40 | ||||||||
| 1/4" | Fully Threaded | 0.219" | 0.068" | -350° to 500° | White | ASME B18.6.3 | 000000000 | 00000 |
| 3/8" | Fully Threaded | 0.219" | 0.068" | -350° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.219" | 0.068" | -350° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 3/4" | Fully Threaded | 0.219" | 0.068" | -350° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
6-32 | ||||||||
| 1/4" | Fully Threaded | 0.270" | 0.082" | -100° to 500° | White | __ | 000000000 | 0000 |
| 3/8" | Fully Threaded | 0.270" | 0.082" | -100° to 500° | White | __ | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.270" | 0.082" | -100° to 500° | White | __ | 000000000 | 0000 |
| 3/4" | Fully Threaded | 0.270" | 0.082" | -100° to 500° | White | __ | 000000000 | 0000 |
| 1" | Fully Threaded | 0.270" | 0.082" | -100° to 500° | White | __ | 000000000 | 0000 |
8-32 | ||||||||
| 1/4" | Fully Threaded | 0.322" | 0.096" | -100° to 500° | White | __ | 000000000 | 0000 |
| 3/8" | Fully Threaded | 0.322" | 0.096" | -100° to 500° | White | __ | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.322" | 0.096" | -100° to 500° | White | __ | 000000000 | 0000 |
| 3/4" | Fully Threaded | 0.322" | 0.096" | -100° to 500° | White | __ | 000000000 | 0000 |
| 1" | Fully Threaded | 0.322" | 0.096" | -350° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
10-32 | ||||||||
| 1/4" | Fully Threaded | 0.373" | 0.110" | -100° to 500° | White | __ | 000000000 | 0000 |
| 3/8" | Fully Threaded | 0.373" | 0.110" | -100° to 500° | White | __ | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.373" | 0.110" | -100° to 500° | White | __ | 000000000 | 0000 |
| 3/4" | Fully Threaded | 0.373" | 0.110" | -100° to 500° | White | __ | 000000000 | 0000 |
| 1" | Fully Threaded | 0.373" | 0.110" | -100° to 500° | White | __ | 000000000 | 0000 |
1/4"-20 | ||||||||
| 3/8" | Fully Threaded | 0.492" | 0.144" | -350° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.492" | 0.144" | -350° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 3/4" | Fully Threaded | 0.492" | 0.144" | -100° to 500° | White | __ | 000000000 | 0000 |
| 1" | Fully Threaded | 0.492" | 0.144" | -100° to 500° | White | __ | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | 0.492" | 0.144" | -350° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
18-8 Stainless Steel Phillips Flat Head Screws
PTFE Coated
Undercut Profile
Standard Profile
These screws have good chemical resistance and may be mildly magnetic. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
Screws with an undercut profile have a shallow head for use in thin materials.
PTFE-coated stainless steel screws won’t stick or bind as you thread them into a hole.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Flat Head Profile | Head Dia. | Head Ht. | Drive Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
PTFE Coated 18-8 Stainless Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
6-32 | ||||||||||
| 1/4" | Fully Threaded | Standard | 0.262" | 0.083" | No. 2 | 80,000 | ASME B18.6.3 | 50 | 000000000 | 000000 |
| 3/8" | Fully Threaded | Standard | 0.262" | 0.083" | No. 2 | 80,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 1/2" | Fully Threaded | Standard | 0.262" | 0.083" | No. 2 | 80,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 3/4" | Fully Threaded | Standard | 0.262" | 0.083" | No. 2 | 80,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
8-32 | ||||||||||
| 1/4" | Fully Threaded | Undercut | 0.312" | 0.1" | No. 2 | 80,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 3/8" | Fully Threaded | Standard | 0.312" | 0.1" | No. 2 | 80,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 1/2" | Fully Threaded | Standard | 0.312" | 0.1" | No. 2 | 80,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 3/4" | Fully Threaded | Standard | 0.312" | 0.1" | No. 2 | 80,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
10-32 | ||||||||||
| 3/8" | Fully Threaded | Standard | 0.362" | 0.116" | No. 2 | 80,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 1/2" | Fully Threaded | Standard | 0.362" | 0.116" | No. 2 | 80,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 3/4" | Fully Threaded | Standard | 0.362" | 0.116" | No. 2 | 80,000 | ASME B18.6.3 | 50 | 000000000 | 00000 |
| 1" | Fully Threaded | Standard | 0.362" | 0.116" | No. 2 | 80,000 | ASME B18.6.3 | 25 | 000000000 | 00000 |
1/4"-20 | ||||||||||
| 3/8" | Fully Threaded | Undercut | 0.477" | 0.153" | No. 3 | 80,000 | ASME B18.6.3 | 25 | 000000000 | 00000 |
| 1/2" | Fully Threaded | Standard | 0.477" | 0.153" | No. 3 | 80,000 | ASME B18.6.3 | 25 | 000000000 | 00000 |
| 3/4" | Fully Threaded | Standard | 0.477" | 0.153" | No. 3 | 80,000 | ASME B18.6.3 | 25 | 000000000 | 00000 |
| 1" | Fully Threaded | Standard | 0.477" | 0.153" | No. 3 | 80,000 | ASME B18.6.3 | 10 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Standard | 0.477" | 0.153" | No. 3 | 80,000 | ASME B18.6.3 | 10 | 000000000 | 00000 |
Extreme-Temperature Chemical-Resistant
PTFE Slotted Flat Head Screws
PTFE screws are more chemical-resistant than other plastic screws and withstand temperatures up to 500° F. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
| Lg. | Threading | Head Dia. | Head Ht. | Temperature Range, °F | Color | Specifications Met | Each | |
PTFE Plastic | ||||||||
|---|---|---|---|---|---|---|---|---|
6-32 | ||||||||
| 1/4" | Fully Threaded | 0.279" | 0.083" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 00000 |
| 3/8" | Fully Threaded | 0.279" | 0.083" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.279" | 0.083" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 3/4" | Fully Threaded | 0.279" | 0.083" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 1" | Fully Threaded | 0.279" | 0.083" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
8-32 | ||||||||
| 1/4" | Fully Threaded | 0.332" | 0.100" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 3/8" | Fully Threaded | 0.332" | 0.100" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.332" | 0.100" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 3/4" | Fully Threaded | 0.332" | 0.100" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 1" | Fully Threaded | 0.332" | 0.100" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
10-32 | ||||||||
| 1/4" | Fully Threaded | 0.385" | 0.116" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 3/8" | Fully Threaded | 0.385" | 0.116" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 1/2" | Fully Threaded | 0.385" | 0.116" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 3/4" | Fully Threaded | 0.385" | 0.116" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 1" | Fully Threaded | 0.385" | 0.116" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
1/4"-20 | ||||||||
| 1/2" | Fully Threaded | 0.507" | 0.153" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 3/4" | Fully Threaded | 0.507" | 0.153" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
| 1" | Fully Threaded | 0.507" | 0.153" | -100° to 500° | White | ASME B18.6.3 | 000000000 | 0000 |
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 |
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 | 00000 |
5/16"-18 | ||||||
| 1 | White | Not Rated | Not Rated | 250° | 000000000 | 00000 |
| 4 | White | Not Rated | Not Rated | 250° | 000000000 | 00000 |
3/8"-16 | ||||||
| 1 | White | Not Rated | Not Rated | 250° | 000000000 | 00000 |
| 4 | White | Not Rated | Not Rated | 250° | 000000000 | 000000 |
1/2"-13 | ||||||
| 1 | White | Not Rated | Not Rated | 250° | 000000000 | 00000 |
| 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 |