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Yellow nylon ring terminal with 1/4 inch stud hole pack of 200

3M

3M MN4-14RK 4 AWG Nylon Ring Terminal 1/4 in Stud Pack 200

SKU CH-R1KC-4NQV9

Crimp-on ring terminal for 4 AWG wire with a 1/4 in stud, nylon insulation rated to 221 °F and 600 V, UL listed and CSA certified, 200 per pack

  • CSA Certified and UL Listed for code-compliant installations
  • Nylon insulation rated to 221 °F withstands engine-bay heat
  • Brazed-seam copper barrel resists pull-out under vibration
  • Crimp connection accepts 4 AWG wire with 0.68 in tongue width
  • 200-piece pack supports high-volume fleet or shop work

4 AWG Nylon Ring Terminal for 1/4 in Stud

The 3M MN4-14RK is a crimp-style ring terminal built for 4 AWG conductors with a 1/4 inch stud size. Yellow nylon insulation identifies the wire range and provides dielectric protection. Each terminal uses a brazed seam and copper connection material for mechanical strength. The pack contains 200 pieces for volume wiring jobs.

Sustained-load behaviour at 600 V and 221 °F

Rated for 600 volts and a maximum temperature of 221 degrees F, the terminal maintains electrical integrity under continuous duty rather than only brief peaks. The brazed seam resists opening when the conductor expands and contracts with thermal cycling. Nylon insulation retains its properties at the rated temperature limit without melting or cracking. Copper construction ensures consistent conductivity throughout extended operation.

CSA Certified and UL Listed with .68 in tongue

The terminal carries both CSA certification and UL listing, confirming compliance with recognised safety standards for the stated ratings. A tongue width of .68 inches matches standard 1/4 inch stud hardware for secure bolt-on connections. Overall length of 1.74 inches fits typical terminal blocks and bus bars without crowding. Crimp termination eliminates the need for soldering equipment on site.

Highlights

  • CSA Certified and UL Listed for code-compliant installations
  • Nylon insulation rated to 221 °F withstands engine-bay heat
  • Brazed-seam copper barrel resists pull-out under vibration
  • Crimp connection accepts 4 AWG wire with 0.68 in tongue width
  • 200-piece pack supports high-volume fleet or shop work

Specifications

Brand3M

Questions about this item

Will the nylon insulation handle continuous 221 °F engine-bay heat?

Yes, the terminal is rated for a maximum temperature of 221 degrees Fahrenheit.

What crimp tool and wire gauge do I need to install these terminals?

Use a crimper sized for 4 AWG copper wire with a brazed-seam ring terminal.

Can I stack these on a 1/4-inch stud alongside older ring terminals?

The tongue width is 0.68 inches, so they fit standard 1/4-inch studs used with legacy terminals.

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