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. 719-6123
Mfr. Part No.323915
$0.426
Each (In a Pack of 50)
units
PIDG - Insulated Nylon - - 0.3mm² 0.1mm² 22AWG 26AWG - M3.5 Yellow Copper
RS Stock No. 136-1645
Mfr. Part No.34162
$197.00
1 Box of 1000
Box(es)
PLASTI-GRIP - Insulated Vinyl 6.35mm 11.91mm 2.6mm² 1mm² 14AWG 16AWG - M6 Blue Copper
RS Stock No. 267-3789
BrandRS PRO
$0.227
Each (In a Pack of 100)
units
- - Insulated Nylon 3.7mm 6.6mm 2.5mm² 1.5mm² 14AWG 16AWG - M3.5 (#6) Blue Copper
RS Stock No. 531-891
BrandRS PRO
$1.935
Each (In a Pack of 10)
units
- - Uninsulated - 10.4mm - 50mm² - - - - M10 - Copper
RS Stock No. 745-5448
Mfr. Part No.130560
$4.20
Each
units
SOLISTRAND - Uninsulated - 6.1mm 16.7mm 26.7mm² 16.8mm² 4AWG 4AWG - M6 (1/4) - Copper
RS Stock No. 239-4105
BrandRS PRO
$0.203
Each (In a Pack of 100)
units
- - Insulated Nylon 2.7mm 5mm 0.5mm² 0.2mm² 22AWG 26AWG - M2.5 Yellow Copper
RS Stock No. 161-1229
Mfr. Part No.323062
$0.894
Each (In a Pack of 10)
units
STRATO-THERM - Uninsulated - 5mm 9.53mm 6.6mm² 2.6mm² 10AWG 12AWG - M5 - Copper
RS Stock No. 161-4000
Mfr. Part No.160119
$2.81
Each (In a Box of 100)
units
SOLISTRAND - Uninsulated - 0.207in 0.656in 26.6mm² 16.8mm² 4AWG 4AWG - M5 - Copper
RS Stock No. 164-3187
Mfr. Part No.2-321045-1
$1,064.00
1 Reel of 4000
Reel(s)
PIDG - Insulated Nylon 6.73mm 11.91mm 2.6mm² 1mm² 14AWG 16AWG - M6 Blue Copper
RS Stock No. 136-1661
Mfr. Part No.322694
$1,080.00
1 Box of 1000
Box(es)
- - Uninsulated - 4.34mm 8.71mm 2.6mm² 1mm² 14AWG 16AWG - 4.17mm - Copper
RS Stock No. 838-8339
Mfr. Part No.14-16
BrandJST
$2.426
Each (In a Pack of 10)
units
R - Uninsulated - 17mm 31.6mm 16.78mm² 10.5mm² 6AWG 6AWG - 16mm - -
RS Stock No. 838-8370
Mfr. Part No.70-8
BrandJST
$4.437
Each (In a Pack of 10)
units
R - Uninsulated - 8.4mm 24mm 76.28mm² 60.57mm² 2/0AWG 2/0AWG - 8mm - -
RS Stock No. 164-3228
Mfr. Part No.327732
$0.881
Each (In a Box of 500)
units
SOLISTRAND - Uninsulated - 9.91mm 19.05mm 2.6mm² 1mm² 14AWG 16AWG - M10 - Copper
RS Stock No. 669-2129
Mfr. Part No.51863
$0.29
Each (In a Pack of 100)
units
PIDG - Insulated Nylon 3.68mm 6.35mm 1.65mm² 0.26mm² 16AWG 22AWG - M3.5 Red Copper
RS Stock No. 166-7580
Mfr. Part No.5.5-6
BrandJST
$0.189
Each (In a Box of 500)
units
R - Uninsulated - 6.4mm 12mm 6.6mm² 2.6mm² 10AWG 12AWG - 6mm - -
RS Stock No. 190-3173
Mfr. Part No.130560
$3.07
Each (In a Box of 40)
units
SOLISTRAND - Uninsulated - 6.1mm 16.7mm 26.7mm² 16.8mm² 4AWG 4AWG - M6 (1/4) - Copper
RS Stock No. 163-9153
Mfr. Part No.323062
$0.603
Each (In a Box of 500)
units
STRATO-THERM - Uninsulated - 5mm 9.53mm 6.6mm² 2.6mm² 10AWG 12AWG - M5 - Copper
RS Stock No. 795-6329
Mfr. Part No.2-32994-1
$0.639
Each (In a Pack of 50)
units
SOLISTRAND - Uninsulated - 4.34mm 9.53mm 6.6mm² 2.6mm² 10AWG 12AWG - M4 - Copper
RS Stock No. 838-8314
Mfr. Part No.8-5
BrandJST
$0.396
Each (In a Pack of 50)
units
R - Uninsulated - 5.3mm 12mm 10.5mm² 6.6mm² 8AWG 8AWG - 5mm - -
RS Stock No. 190-3895
Mfr. Part No.331456
$4.66
Each (In a Box of 100)
units
TERMINYL - Insulated Nylon 4.43mm 11.1mm 26.7mm² 16.8mm² 4AWG 4AWG - M4 (#8) Yellow Copper