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. 457-4000
Mfr. Part No.130094
$0.465
Each (In a Pack of 100)
units
PIDG - Insulated Nylon 5mm 8.7mm 2.6mm² 1mm² 14AWG 16AWG - M5 Blue Copper
RS Stock No. 267-6441
BrandRS PRO
$0.325
Each (In a Pack of 100)
units
- - Insulated Nylon 6.4mm 12mm 6mm² 4mm² 10AWG 12AWG - M6 (1/4) Yellow Copper
RS Stock No. 457-5211
Mfr. Part No.320569
$0.572
Each (In a Pack of 100)
units
PIDG - Insulated Nylon 6.35mm 13.49mm 6.6mm² 2.6mm² 10AWG 12AWG - M6 Yellow Copper
RS Stock No. 613-9413
BrandRS PRO
$0.283
Each (In a Pack of 100)
units
- - Insulated Vinyl 6.4mm 12mm 6mm² 4mm² 10AWG 12AWG - M6 Yellow Copper
RS Stock No. 267-3745
BrandRS PRO
$0.283
Each (In a Pack of 100)
units
- - Insulated Nylon 5.3mm 9.5mm 2.5mm² 1.5mm² 14AWG 16AWG - M5 (#10) Blue Copper
RS Stock No. 457-5126
Mfr. Part No.130008
$0.466
Each (In a Pack of 100)
units
PIDG - Insulated - 5mm 7.92mm 1.6mm² 0.25mm² 16AWG 22AWG - M5 Red Copper
RS Stock No. 164-8614
Mfr. Part No.320569
$0.481
Each (In a Box of 500)
units
PIDG - Insulated Nylon 6.35mm 13.49mm 6.6mm² 2.6mm² 10AWG 12AWG - M6 Yellow Copper
RS Stock No. 136-1793
Mfr. Part No.130008
$332.80
1 Box of 1000
Box(es)
PIDG - Insulated - 5mm 7.92mm 1.6mm² 0.25mm² 16AWG 22AWG - M5 Red Copper
RS Stock No. 398-1946
Mfr. Part No.3R8
BrandKlauke
$1.427
Each (In a Bag of 10)
units
- - Uninsulated - - - 16mm² 16mm² - - - M8 - Copper
RS Stock No. 267-3739
BrandRS PRO
$0.259
Each (In a Pack of 100)
units
- - Insulated Nylon 6.4mm 12mm 2.5mm² 1.5mm² 14AWG 16AWG - M6 (1/4) Blue Copper
RS Stock No. 208-2492
BrandRS PRO
$0.21
Each (In a Pack of 100)
units
- - Insulated PVC 8.4mm 12.6mm 1.5mm² 0.5mm² 16AWG 22AWG - M8 Red Copper
RS Stock No. 534-222
BrandRS PRO
$0.111
Each (In a Pack of 100)
units
- - Insulated PVC 3.7mm 6.6mm 1.5mm² 0.5mm² 16AWG 22AWG - M3.5 Red Copper
RS Stock No. 531-015
BrandRS PRO
$0.422
Each (In a Pack of 25)
units
- - Uninsulated - 5.3mm - 10mm² - - - - M5 - Copper
RS Stock No. 613-9334
BrandRS PRO
$0.195
Each (In a Pack of 100)
units
- - Insulated Vinyl 3.2mm 7.2mm 6mm² 4mm² 10AWG 12AWG - M3 Yellow Copper
RS Stock No. 373-314
Mfr. Part No.160013
$1.727
Each (In a Pack of 50)
units
SOLISTRAND - Uninsulated - 5mm 11.9mm 10.5mm² 6.6mm² 8AWG 8AWG - M5 - Copper
RS Stock No. 135-4468
Mfr. Part No.160013
$1.318
Each (In a Bag of 500)
units
SOLISTRAND - Uninsulated - 5mm 11.9mm 10.5mm² 6.6mm² 8AWG 8AWG - M5 - Copper
RS Stock No. 531-071
BrandRS PRO
$1.165
Each (In a Pack of 10)
units
- - Uninsulated - 8.4mm - 25mm² - - - - M8 - Copper
RS Stock No. 267-3616
BrandRS PRO
$0.322
Each (In a Pack of 100)
units
- - Insulated Nylon 5.3mm 8mm 1.5mm² 0.5mm² 16AWG 22AWG - M5 (#10) Red Copper
RS Stock No. 170-9404
Mfr. Part No.322335
$1,270.00
1 Box of 1000
Box(es)
STRATO-THERM - - - 5mm 8.71mm 2.6mm² 1mm² 14AWG 16AWG - M5 - Nickel
RS Stock No. 809-2228
BrandRS PRO
$0.056
Each (In a Pack of 100)
units
- - Uninsulated - 4.3mm 8mm 1.5mm² 0.5mm² 16AWG 22AWG - M4 - Copper