Selecting U-Bolts Using Pipe, Conduit, or Tubing Trade Size
More
About Conduit
More
Adapters for Flexible Plastic Conduit
Tabs on one end snap into grooves in conduit; the other end attaches to a knockout in an outlet box or enclosure. These adapters help seal out air and liquid when used with flexible plastic conduit. All meet IP68 for prolonged submersion and IP69K for high-pressure, high-temperature washdowns. They withstand vibration, are flame retardant, and resist oil, solvents, and UV light.
For technical drawings and 3-D models, click on a part number.

Conduit Connection | Electrical Box Connection | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Conduit Trade Size | Conduit Connection Type | Gender | Thread Size | Thread Type | Gender | Material | Color | Temperature Range, °F | Environmental Rating | Specifications Met | Each | |
Metric | ||||||||||||
5/16 | Snap-In | Female | M16 | Metric | Male | Nylon | Black | -40° to 245° | IP68, IP69K | UL 94 V-0, UL Recognized Component | 0000000 | 00000 |
3/8 | Snap-In | Female | M16 | Metric | Male | Nylon | Black | -40° to 245° | IP68, IP69K | UL 94 V-0, UL Recognized Component | 0000000 | 0000 |

Conduit Connection | Electrical Box Connection | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Conduit Trade Size | Conduit Connection Type | Gender | Thread Size | Thread Type | Gender | Material | Color | Temperature Range, °F | Environmental Rating | Specifications Met | Each | |
Metric | ||||||||||||
3/8 | Snap-In | Female | M16 | Metric | Male | Nylon | Black | -40° to 245° | IP68, IP69K | UL Recognized Component, UL 94 V-0 | 0000000 | 000000 |
Fittings for Shielded Flexible Plastic Conduit

These adapters provide electromagnetic interference (EMI) protection when connecting shielded flexible plastic conduit to a knockout in an outlet box or enclosure. Twist the compression end over the conduit; tighten the compression ring to secure.
A brass locknut is required (not included) when installing in an unthreaded knockout.
For technical drawings and 3-D models, click on a part number.
Locknuts for Metal Conduit Fittings
Conduit and Cord Grip Thread Adapters



Adapt metric, NPT, and PG conduit and cord grip threads to match knockout threads. A rubber O-ring seals out moisture.
Nylon adapters are lightweight and chemical resistant.
For technical drawings and 3-D models, click on a part number.
Conduit and Cord Grip Connection | Electrical Box Connection | Nickel-Plated Brass | Nylon Plastic | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Pipe Size | Thread Type | Gender | Thread Size | Thread Type | Gender | Each | Each | ||
NPT × Metric | ||||||||||
__ | 1/2 | NPT | Female | M16 | Metric | Male | 000000 | 000000 | 0000000 | 00000 |
Metric × PG | ||||||||||
M16 | __ | Metric | Female | PG-9 | PG | Male | 0000000 | 0000 | 0000000 | 00000 |
PG × Metric | ||||||||||
PG-9 | __ | PG | Female | M16 | Metric | Male | 0000000 | 0000 | 000000 | 00 |
Clamping U-Bolts

Also known as muffler clamps, these U-bolts have a rounded mounting plate that fully surrounds pipe, conduit, and tubing for a secure fit. Stronger than routing clamps and hangers, U-bolts support heavy pipe, tube, and conduit from ceilings, walls, and poles.
Zinc-plated steel U-bolts have good corrosion resistance in most environments.
U-bolts with four nuts allow you to secure the U-bolt from the top and the bottom.
For technical drawings and 3-D models, click on a part number.
ID | Thread | Mounting Plate | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Inch | Metric, mm | For Pipe Size | Ht. | Lg. | Pitch, mm | Ctr.-to-Ctr. | Material | Color | Lg. | Wd. | Thick. | No. of Nuts Included | Temp. Range, °F | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||||||||
M16 Thread Size | ||||||||||||||||
4 3/4" | 121 | 4 | 6 1/8" | 3 3/16" | 2 | 5 3/8" | Plastic | Black | 7 1/2" | 1 9/16" | 13/16" | 4 | -20° to 190° F | 1 | 0000000 | 000000 |
5 13/16" | 148 | 5 | 6 15/16" | 3 3/16" | 2 | 6 7/16" | Plastic | Black | 8 11/16" | 1 9/16" | 13/16" | 4 | -20° to 190° F | 1 | 0000000 | 00000 |
6 15/16" | 176 | 6 | 7 15/16" | 3 3/16" | 2 | 7 9/16" | Plastic | Black | 10" | 1 15/16" | 1" | 4 | -20° to 190° F | 1 | 0000000 | 00000 |