Ring Terminals

A crimp ring terminal is a short metal tube with flat washer type ring attached. The tube or barrel end of the crimp is a hollow tube where the stranded wire is inserted and crimped. The contact or connection end is a flat ring with a central hole which connects to a stud or bolt. Ring terminals are insulated or non-insulated.
What does it do?
An electrical crimp is a solderless electrical connection. Ring terminals are used to connect wiring to screws and studs.
Why do you need it / applications?
Electrical panels
Terminal blocks
Wiring harnesses
Types
Crimp terminals are available in a wide variety of ring sizes and wire sizes. The CSA (cross sectional area) or AWG (American wire gauge) of the stranded wire is the most critical. The size of the stranded wire must be adequately matched to meet the amperage. The size of the ring is matched to the bolt or stud size, usually in a metric measurement.
Insulated Terminals
DIN 46237 colour coding is the most popular type of crimp terminal. Colour coding is used to denote a wire size.
• Red 0.5 mm² to 1.5 mm² -
• Yellow 2.5 mm² to 6 mm²
• Blue 1.5 mm² to 2.5 mm²
Other colours by different manufactures are now available.
Non-insulated
Non-insulated terminals are bigger terminals. Non-insulated terminals connect to bigger studs and bolts. Non-insulated ring terminals have the capacity to except larger stranded wire. More specialised tooling is required for these heavy-duty terminals.

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Description Price Series Series Number Insulation Insulation Material Inner Ring Diameter Outer Ring Diameter Maximum Wire Size mm² Minimum Wire Size mm² Maximum Wire Size AWG Minimum Wire Size AWG Shrouded/Unshrouded Stud Size Colour Contact Material
RS Stock No. 208-2565
BrandRS PRO
$0.096
Each (In a Pack of 100)
units
- - Uninsulated - 4.3mm 8mm 1.5mm² 0.5mm² 16AWG 22AWG - M4 - Copper
RS Stock No. 208-2622
BrandRS PRO
$0.119
Each (In a Pack of 100)
units
- - Uninsulated - 4.3mm 8mm 2.5mm² 1.5mm² 14AWG 16AWG - M4 - Copper
RS Stock No. 267-3644
BrandRS PRO
$0.262
Each (In a Pack of 100)
units
- - Insulated Nylon 3.7mm 6.6mm 1.5mm² 0.5mm² 16AWG 22AWG - M3.5 (#6) Red Copper
RS Stock No. 809-2313
BrandRS PRO
$1.174
Each (In a Pack of 25)
units
- - Uninsulated - 17mm 28mm 25mm² 25mm² 4AWG 4AWG - 17mm - Copper
RS Stock No. 267-3903
BrandRS PRO
$0.563
Each (In a Pack of 100)
units
- - Insulated Nylon 4.3mm 7.2mm 6mm² 4mm² 10AWG 12AWG - M4 (#8) Yellow Copper
RS Stock No. 613-9457
BrandRS PRO
$0.348
Each (In a Pack of 100)
units
- - Insulated Vinyl 10.5mm 15mm 6mm² 4mm² 10AWG 12AWG - M10 Yellow Copper
RS Stock No. 267-3587
BrandRS PRO
$0.146
Each (In a Pack of 100)
units
- - Insulated Nylon 8.4mm 11.6mm 1.5mm² 0.5mm² 16AWG 22AWG - M8 (5/16) Red Copper
RS Stock No. 809-2284
BrandRS PRO
$0.476
Each (In a Pack of 25)
units
- - Uninsulated - 5.3mm 11mm 16mm² 16mm² 8AWG 6AWG - #10 - Copper
RS Stock No. 613-9328
BrandRS PRO
$0.208
Each (In a Pack of 100)
units
- - Insulated Vinyl 6.4mm 12mm 2.5mm² 1.5mm² 14AWG 16AWG - M6 Blue Copper
RS Stock No. 841-7636
BrandRS PRO
$0.807
Each (In a Pack of 50)
units
- - Uninsulated - 8.3mm 16mm 35mm² - - - - 8mm - Copper
RS Stock No. 267-3874
BrandRS PRO
$0.455
Each (In a Pack of 100)
units
- - Insulated Nylon 8.4mm 15mm 6mm² 4mm² 10AWG 12AWG - M8 (5/16) Yellow Copper
RS Stock No. 809-2287
BrandRS PRO
$0.475
Each (In a Pack of 50)
units
- - Uninsulated - 10.5mm 18mm 10mm² 10mm² 8AWG 8AWG - 10.5mm - Copper
RS Stock No. 613-9249
BrandRS PRO
$0.151
Each (In a Pack of 100)
units
- - Insulated Vinyl 4.3mm 6.6mm 1.5mm² 0.5mm² 16AWG 22AWG - M4 Red Copper
RS Stock No. 809-2271
BrandRS PRO
$0.285
Each (In a Pack of 50)
units
- - Uninsulated - 5.3mm 10mm 10mm² 10mm² 8AWG 8AWG - #10 - Copper
RS Stock No. 241-4647
BrandRS PRO
$7.147
Each (In a Pack of 10)
units
- - Uninsulated - 10.3mm - 95mm² - - - - M10 - Copper
RS Stock No. 809-2322
BrandRS PRO
$0.788
Each (In a Pack of 25)
units
- - Uninsulated - 8.4mm 16mm 35mm² 35mm² 2AWG 2AWG - 8.4mm - Copper
RS Stock No. 510-4949
BrandRS PRO
$25.44
1 Bag of 50
Bag(s)
- - Uninsulated - 3.4mm 5.6mm 6mm² 4mm² 10AWG 12AWG - 4 mm, #8 - Copper
RS Stock No. 613-9211
BrandRS PRO
$0.053
Each (In a Pack of 100)
units
- - Insulated Vinyl 3.7mm 6.6mm 2.5mm² 1.5mm² 14AWG 16AWG - M3.5 Blue Copper
RS Stock No. 433-034
BrandRS PRO
$0.142
Each (In a Pack of 100)
units
- - Uninsulated - 3.2mm 5.5mm 1.5mm² 0.5mm² 16AWG 22AWG - M3 - Copper
RS Stock No. 809-2268
BrandRS PRO
$0.27
Each (In a Pack of 100)
units
- - Uninsulated - 8.4mm 14mm 6mm² 2.5mm² 10AWG 12AWG - 8.4mm - Copper