Ancor Marine Heat-Shrink Ring Terminals: AWG and Stud Sizes

Ring terminals make a bolted electrical connection at terminal blocks, bus bars and other suitable connection points. For a reliable marine installation, choose a terminal that matches both the conductor’s AWG and the threaded stud size. This Ancor comparison covers adhesive-lined heat-shrink ring terminals in several stud and pack sizes.

Choose by wire gauge, stud and package

Wire-gauge range

The crimp barrel must suit the conductor. The three groups here are 22–18, 16–14 and 12–10 AWG.

Stud-hole diameter

Identify whether the connection uses a #8, #10, 5/16-inch or 3/8-inch fastening stud.

Quantity

Some sizes are sold in different pack counts; do not mistake a different quantity for a different fitting size.

Ancor 22–18 AWG ring terminals

MPN Wire size Stud hole Pieces
310299 22–18 AWG #8 (4 mm) 100
310399 22–18 AWG #10 (4.8 mm) 100

Ancor 16–14 AWG ring terminals

MPN Wire size Stud hole Pieces
311299 16–14 AWG #8 (4 mm) 100
311399 16–14 AWG #10 (4.8 mm) 100
311625 16–14 AWG 3/8 in (9.5 mm) 25
311699 16–14 AWG 3/8 in (9.5 mm) 100

Ancor 12–10 AWG ring terminals

MPN Wire size Stud hole Pieces
312299 12–10 AWG #8 (4 mm) 100
312399 12–10 AWG #10 (4.8 mm) 100
312599 12–10 AWG 5/16 in (7.9 mm) 100
312625 12–10 AWG 3/8 in (9.5 mm) 25

Marine terminal installation notes

These Ancor terminals feature tinned copper, an adhesive-lined heat-shrink sleeve and a brazed seam. Select a compatible crimp die for the AWG and terminal design, verify a sound crimp, then recover the insulation with a suitable heat tool as instructed by the manufacturer.

Stud size is independent of wire gauge

A 16–14 AWG ring terminal with a 3/8-inch hole does not fit the same fastener as a 16–14 AWG terminal with a #8 or #10 hole. Both specifications must match the actual installation.

Ancor heat-shrink ring terminals

Select a product card to review the exact terminal and its availability.

Related marine electrical parts

Ancor butt connectors and step-down fittings · Pre-assembled marine battery cables

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