Dura-Lug 1/0 AWG Eyelet — 5/16″ Stud for Motorsport Primary Power Wiring
The DL10516 is a Dura-Lug heavy-duty crimp eyelet (ring terminal) in 1/0 AWG (53.5 mm²) with a 5/16″ stud hole, rated for approximately 170–190 A amps continuous. Dura-Lug eyelets are industrial-grade compression-crimp ring terminals manufactured for primary power circuit terminations in motorsport vehicles, battery systems, and high-current electrical builds. This eyelet is suited to maximum-capacity battery cable terminations, race car main power distribution, and competition vehicle primary earth connections.
Dura-Lug Construction — Why It Is Specified for Motorsport
Dura-Lug eyelets use a heavy-duty copper barrel with a thicker wall section than standard automotive ring terminals, providing greater mechanical strength at the crimp zone and resistance to bending stress at the barrel-to-ring transition. The ring face provides a flat, full-contact mating surface against the stud and washer, minimising contact resistance at the primary power connection. At these large conductor cross-sections — 4 AWG through 3/0 AWG — a correctly specified and properly crimped ring terminal is a critical component in the primary power circuit: even a modest increase in contact resistance at a battery terminal or main earth connection produces measurable voltage drop and heat generation under the sustained high-current loads of a race car electrical system.
5/16″ Hole Size — M8 bolt equivalent — used on battery post studs, MEGA fuse holders, and primary distribution block studs requiring M8 fasteners
Selecting the correct hole size for the target stud prevents the installation errors that compromise connection quality: an undersized hole cannot be installed on the stud, while an oversized hole allows micro-movement between the terminal ring and the stud face under vibration — accelerating surface oxidation and increasing contact resistance over time. Always confirm the stud diameter before ordering ring terminals.
1/0 AWG Conductor — Application Range
The 1/0 AWG (53.5 mm²) Dura-Lug is rated for maximum-capacity battery cable terminations, race car main power distribution, and competition vehicle primary earth connections. At primary power circuit current levels, the ring terminal must be sized appropriately to the conductor — using a terminal rated below the cable gauge creates a resistance bottleneck and potential heat source at the primary connection point.
Available from Arctic Performance Parts
Arctic Performance Parts stocks Dura-Lug heavy-duty eyelets across 4 AWG through 3/0 AWG and all common hole sizes (1/4″, 5/16″, 3/8″) to support primary power circuit builds for motorsport vehicles across Norway, Sweden, and Denmark. Lead time 1–2 weeks for quantities beyond current stock.
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