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Set Screw Lugs
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For 1 Wire | For 2 Wires | For 3 Wires | For 4 Wires |
For Wire Ga. | For Screw Size | Lg. | Wd. | Ht. | Thk. | For Wire Construction | For Wire Material | Terminal Material | Max. Temp., ° F | Max. Voltage, V AC | Certification | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For 1 Wire | |||||||||||||||
1 Hole | |||||||||||||||
| 14 to 4 | 1/4" | 1.060" | 0.500" | 0.500" | 0.093" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K21 | 00000 | ||
| 14 to 2 | 1/4" | 1.160" | 0.500" | 0.560" | 0.1" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K22 | 0000 | ||
| 14 to 1/0 | 1/4" | 1.470" | 0.630" | 0.780" | 0.19" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K23 | 0000 | ||
| 14 to 2/0 | 1/4" | 1.470" | 0.630" | 0.780" | 0.19" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K24 | 0000 | ||
| 6 to 250 MCM | 5/16" | 2.000" | 1.000" | 1.130" | 1/4" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K25 | 0000 | ||
| 6 to 300 MCM | 1/4" | 2.000" | 0.860" | 1.130" | 1/4" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K27 | 0000 | ||
| 4 to 500 MCM | 3/8" | 2.810" | 1.500" | 1.810" | 0.31" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K29 | 00000 | ||
| 2 to 600 MCM | 3/8" | 3.190" | 1.500" | 1.560" | 0.437" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K31 | 00000 | ||
| 300 to 800 MCM | 5/8" | 3.380" | 1.750" | 1.940" | 1/2" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K33 | 00000 | ||
| 350 to 1000 MCM | 5/8" | 3.380" | 1.750" | 1.940" | 1/2" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K35 | 00000 | ||
2 Holes Spaced 1 3/4" Center-to-Center | |||||||||||||||
| 6 to 350 MCM | 1/2" | 4.310" | 1.130" | 1.380" | 0.31" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K28 | 00000 | ||
| 2 to 600 MCM | 1/2" | 4.690" | 1.500" | 1.380" | 0.438" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K32 | 00000 | ||
| 300 to 800 MCM | 1/2" | 6.190" | 1.750" | 1.880" | 1/2" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K34 | 00000 | ||
| 500 to 1000 MCM | 1/2" | 4.750" | 1.750" | 1.940" | 1/2" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K16 | 00000 | ||
For 2 Wires | |||||||||||||||
1 Hole | |||||||||||||||
| 14 to 1/0 | 1/4" | 1.470" | 1.130" | 0.800" | 3/16" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K51 | 0000 | ||
| 14 to 2/0 | 1/4" | 1.470" | 1.250" | 0.800" | 3/16" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K52 | 0000 | ||
| 6 to 250 MCM | 3/8" | 2.560" | 1.660" | 1.190" | 1/4" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K53 | 00000 | ||
| 6 to 350 MCM | 1/2" | 2.880" | 1.890" | 1.250" | 1/4" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K54 | 00000 | ||
| 2 to 600 MCM | 1/2" | 3.190" | 2.410" | 1.560" | 7/16" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K55 | 00000 | ||
| 500 to 1000 MCM | 5/8" | 3.380" | 3.190" | 1.940" | 1/2" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K11 | 00000 | ||
2 Holes Spaced 1 3/4" Center-to-Center | |||||||||||||||
| 6 to 350 MCM | 1/2" | 4.310" | 2.000" | 1.380" | 5/16" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K15 | 00000 | ||
| 2 to 600 MCM | 1/2" | 4.690" | 2.410" | 1.380" | 7/16" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K12 | 00000 | ||
| 300 to 800 MCM | 1/2" | 4.750" | 3.190" | 1.940" | 1/2" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K13 | 00000 | ||
6 Holes Spaced 1 3/4" Center-to-Center | |||||||||||||||
| 6 to 350 MCM | 1/2" | 5.500" | 2.750" | 1.969" | 3/8" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K102 | 00000 | ||
| 2 to 600 MCM | 1/2" | 5.500" | 2.750" | 1.969" | 3/8" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K103 | 00000 | ||
| 300 to 800 MCM | 1/2" | 5.969" | 3.000" | 2.234" | 1/2" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K104 | 00000 | ||
For 3 Wires | |||||||||||||||
6 Holes Spaced 1 3/4" Center-to-Center | |||||||||||||||
| 300 to 800 MCM | 1/2" | 5.969" | 4.125" | 2.328" | 1/2" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K105 | 000000 | ||
For 4 Wires | |||||||||||||||
8 Holes Spaced 1 3/4" Center-to-Center | |||||||||||||||
| 350 to 1000 MCM | 1/2" | 5.969" | 6.500" | 2.203" | 1/2" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600 | CSA Certified, UL Listed | 6920K106 | 00000 | ||
Finish-Your-Own Compression Lugs
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For Wire Ga. | For Screw Size | Lg. | Wd. | Ht. | Thk. | Stripe Color | For Wire Construction | For Wire Material | Terminal Material | Max. Temp., ° F | Max. Voltage | Certification | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Double Crimp | ||||||||||||||||
| 6 | No. 8 No. 10 No. 12 1/4" | 4.32" | 0.730" | 0.310" | 0.087" | Blue | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4184N11 | 000000 | ||
| 4 | No. 8 No. 10 No. 12 1/4" | 4.36" | 0.750" | 0.340" | 0.093" | White | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4184N12 | 00000 | ||
| 2 | No. 10 No. 12 1/4" 5/16" 3/8" | 4.41" | 0.750" | 0.420" | 0.109" | Brown | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4184N13 | 00000 | ||
| 1/0 | No. 10 No. 12 1/4" 5/16" 3/8" 1/2" | 4.86" | 0.740" | 0.520" | 0.125" | Pink | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4184N14 | 00000 | ||
| 2/0 | No. 10 No. 12 1/4" 5/16" 3/8" 1/2" 5/8" | 4.90" | 0.810" | 0.560" | 0.125" | Black | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4184N15 | 00000 | ||
| 3/0 | No. 10 No. 12 1/4" 5/16" 3/8" 1/2" 5/8" | 4.94" | 0.890" | 0.61" | 0.125" | Orange | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4184N16 | 00000 | ||
| 4/0 | 1/4" 5/16" 3/8" 1/2" 5/8" | 4.99" | 1.000" | 0.690" | 0.141" | Purple | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4184N17 | 00000 | ||
Box Lugs
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These lugs are designed to slide onto grounding or neutral bars in electrical panels. They're often relied on for control panel connections, where a secure hold on the wire helps prevent loose connections, overheating, and other interruptions. To install, insert your wire then clamp it down with the set screw onto the metal bar.
For Wire Ga. | Thread Size | Lg. | Wd. | Ht. | For Wire Construction | For Wire Material | Terminal Material | Max. Temp., ° F | Max. Voltage | Certification | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 14 to 2 | 10-32 | 0.469" | 0.487" | 0.640" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 165 | 600V AC 600V DC | CSA Certified, UL Recognized Component | 4164N11 | 00000 | ||
| 14 to 1/0 | 10-32 | 0.625" | 0.564" | 0.687" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 165 | 600V AC 600V DC | CSA Certified, UL Recognized Component | 4164N12 | 0000 | ||
| 6 to 250 MCM | 1/4"-20 | 1.000" | 0.812" | 1.000" | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 165 | 600V AC 600V DC | CSA Certified, UL Recognized Component | 4164N13 | 00000 | ||
Compression Lugs
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Straight |
These lugs connect wire as large as 500 MCM in industrial feeder circuits, high-power service entrances, and other large systems. Squeeze the barrel tightly and evenly onto the wire with a compression tool for a permanent connection that stands up to heavy vibration, sudden shocks, and daily wear and tear. Compression lugs are a step up from set screw lugs when you need a physically strong connection, though set screw lugs attach to even larger wire.
Double Crimp—The choice for wire that’s frequently pulled, bent, or vibrated. Crimp the extended barrel in two places for an extra-strong grip on the wire.
For Wire Ga. | For Screw Size | Lg. | Wd. | Ht. | Thk. | Stripe Color | For Wire Construction | For Wire Material | Terminal Material | Max. Temp., ° F | Max. Voltage | Certification | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Straight—Double Crimp | ||||||||||||||||
1 Hole | ||||||||||||||||
| 8 | 1/4" | 1.690" | 0.490" | 0.270" | 0.09" | Red | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N59 | 00000 | ||
| 6 | 1/4" | 1.860" | 0.450" | 0.368" | 0.14" | Gray | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N51 | 0000 | ||
| 6 | 3/8" | 2.200" | 0.600" | 0.320" | 0.09" | Blue | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N61 | 0000 | ||
| 4 | 1/4" | 2.100" | 0.570" | 0.457" | 0.18" | Green | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N52 | 0000 | ||
| 2 | No. 10 | 1.970" | 0.600" | 0.420" | 0.125" | Brown | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N16 | 0000 | ||
| 2 | 5/16" | 2.240" | 0.700" | 0.555" | 0.22" | Pink | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N53 | 00000 | ||
| 1 | 5/16" | 2.286" | 0.725" | 0.579" | 0.19" | Yellow | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N54 | 00000 | ||
| 1/0 | 1/4" | 2.730" | 0.740" | 0.510" | 0.125" | Pink | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N62 | 00000 | ||
| 1/0 | 5/16" | 2.450" | 0.820" | 0.634" | 0.21" | Beige | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N55 | 00000 | ||
| 2/0 | 1/4" | 2.770" | 0.810" | 0.560" | 0.125" | Black | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N63 | 0000 | ||
| 2/0 | 3/8" | 2.910" | 0.920" | 0.709" | 0.24" | Green | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N56 | 00000 | ||
| 3/0 | 1/4" | 2.810" | 0.890" | 0.609" | 0.125" | Orange | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N64 | 00000 | ||
| 3/0 | 1/2" | 3.310" | 1.040" | 0.801" | 0.27" | Red | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N57 | 00000 | ||
| 4/0 | 1/4" | 2.870" | 1.000" | 0.690" | 0.14" | Purple | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N65 | 00000 | ||
| 4/0 | 3/8" | 2.870" | 1.000" | 0.687" | 0.14" | Purple | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N66 | 00000 | ||
| 4/0 | 1/2" | 3.480" | 1.170" | 0.894" | 0.3" | White | Stranded | Aluminum, Copper | Tin-Plated Aluminum | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4172N58 | 00000 | ||
Slotted Compression Lugs
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An easy fix when your screw spacing is uncertain or inconsistent. One of the mounting holes on these lugs is actually a long slot, so your screws can be close or farther apart and they’ll still fit. Squeeze the barrel onto the wire with a compression tool for a permanent connection that stands up to heavy vibration, sudden shocks, and daily wear and tear. Compression lugs are a step up from set screw lugs when you need a physically strong connection, though set screw lugs attach to even larger wire.
Double Crimp—The choice for wire that’s frequently pulled, bent, or vibrated. Crimp the extended barrel in two places for an extra-strong grip on the wire.
For Wire Ga. | For Screw Size | Lg. | Wd. | Ht. | Thk. | Stripe Color | For Wire Construction | For Wire Material | Terminal Material | Max. Temp., ° F | Max. Voltage | Certification | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Double Crimp | ||||||||||||||||
2 Holes Spaced 5/8" to 1" Center-to-Center | ||||||||||||||||
| 6 | 1/4" | 3.000" | 0.44" | 0.310" | 0.087" | Blue | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4181N11 | 000000 | ||
| 4 | 1/4" | 3.050" | 0.490" | 0.340" | 0.093" | Gray | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4181N12 | 00000 | ||
| 2 | 3/8" | 3.35" | 0.600" | 0.450" | 0.109" | Brown | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4181N13 | 00000 | ||
| 1 | 3/8" | 3.64" | 0.670" | 0.500" | 0.109" | Green | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4181N14 | 00000 | ||
2 Holes Spaced 1" to 1 3/4" Center-to-Center | ||||||||||||||||
| 1/0 | 1/2" | 4.96" | 0.740" | 0.550" | 0.125" | Pink | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4181N15 | 00000 | ||
| 2/0 | 1/2" | 5.000" | 0.810" | 0.60" | 0.125" | Black | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4181N16 | 00000 | ||
| 3/0 | 1/2" | 5.04" | 0.890" | 0.65" | 0.125" | Orange | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4181N17 | 00000 | ||
| 4/0 | 1/2" | 5.09" | 1.000" | 0.73" | 0.141" | Purple | Stranded | Copper | Tin-Plated Copper | 190 | 600V AC 600V DC | CSA Certified, UL Listed | 4181N18 | 00000 | ||
Offset Set Screw Lugs
 |  |
For 1 Wire | For 2 Wires |
Only the base with the screw hole attaches to the surface. The rest of the lug extends vertically, so you can insert or adjust the wire without your tools snagging on other connectors or components.
Set screw lugs attach to even larger wire than compression lugs, such as the 1000 MCM building wire used in large factories. They're also easier to install and reusable because you cinch the wire with a set screw rather than crushing the barrel. They don't hold the wire as securely as compression lugs, however—use them when pulling and bending aren't a concern and you need to easily break your connection for maintenance or adjustments.
For Wire Ga. | For Screw Size | Lg. | Wd. | Ht. | Thk. | For Wire Construction | For Wire Material | Terminal Material | Max. Temp., ° F | Max. Voltage, V AC | Certification | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For 1 Wire | |||||||||||||||
2 Holes Spaced 1" Center-to-Center | |||||||||||||||
| 14 to 6 | No. 10 | 2.250" | 0.375" | 0.750" | 0.072" | Stranded | Copper | Copper | 194 | 600 | C-UL Listed, CSA Certified, UL Listed | 6923K103 | 00000 | ||
| 8 to 2 | 1/4" | 2.438" | 0.500" | 1.000" | 0.083" | Stranded | Copper | Copper | 194 | 600 | C-UL Listed, CSA Certified, UL Listed | 6923K104 | 0000 | ||
| 6 to 1/0 | 1/4" | 2.938" | 0.625" | 1.344" | 1/8" | Stranded | Copper | Copper | 194 | 600 | C-UL Listed, CSA Certified, UL Listed | 6923K105 | 00000 | ||
| 2 to 4/0 | 5/16" | 3.594" | 1.000" | 1.813" | 1/8" | Stranded | Copper | Copper | 194 | 600 | C-UL Listed, CSA Certified, UL Listed | 6923K106 | 00000 | ||
For 2 Wires | |||||||||||||||
1 Hole | |||||||||||||||
| 1/0 to 350 MCM | 3/8" | 3.500" | 1.750" | 2.219" | 0.19" | Stranded | Copper | Copper | 194 | 600 | C-UL Listed, CSA Certified, UL Listed | 6923K102 | 000000 | ||
