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Copper ring terminal, bare finish, 3/8 inch stud, 200 pieces

3M

3M M4-38RK 4 AWG Ring Terminal 3/8" Stud PK200

SKU CH-69N5-V5AT2

Connects 4 AWG wire to a 3/8 in stud with a brazed-seam copper ring terminal rated 600 V and 347 °F, supplied in a 200-piece pack

  • CSA Certified and UL Listed for code-compliant installations
  • Brazed seam resists opening under vibration and load
  • 600 V rating supports standard automotive and industrial circuits
  • Operates up to 347 °F in high-temperature environments
  • 200-piece pack keeps production lines stocked

4 AWG Ring Terminals for 3/8" Studs

These non-insulated ring terminals accept 4 AWG wire and fit a 3/8 in stud. The pack contains 200 pieces, suited for automotive, marine, and industrial wiring jobs that require a secure crimp connection on a 3/8 in bolt or terminal post.

Brazed-seam copper with CSA and UL marks

Each terminal is made from bare copper with a brazed seam for mechanical strength. The .68 in tongue width matches the 3/8 in stud size, and the 1.34 in overall length provides enough barrel for a proper crimp. Rated to 600 V and 347 Degrees F, the parts carry CSA certification and UL listing for code-compliant installations.

Verify wire gauge, stud size, and crimp tooling

Confirm the conductor is 4 AWG and the mounting stud measures 3/8 in before ordering. A compatible crimp tool for non-insulated terminals is required to achieve a reliable connection. The bare finish offers no insulation, so plan for heat-shrink or tape if the application demands dielectric protection.

How it compares

Measured against everything we stock in Wire Connectors & Cable Ties, at today’s prices. Recalculated every night.

Price $203.99
Pricier than about 91% of the 1,040 comparable items (median $13.99).

Specifications

Product
Brand name3M

Questions about this item

What voltage does the 600 V rating cap in practice?

The 600 V rating is the maximum voltage the terminal is listed for; do not exceed it in the circuit.

What stud size and tongue width does the terminal need to fit?

It fits a 3/8 in stud and has a .68 in tongue width for the connection.

How is the 4 AWG wire installed in the brazed-seam barrel?

Strip the wire, insert fully into the barrel, then crimp with a 4 AWG die; the brazed seam prevents the barrel from splitting during the crimp.

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