Crimp 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 Stud Size Colour Contact Material Contact Plating
RS Stock No. 135-5166
Mfr. Part No.322338
TWD52,868
1 Box of 1000
Box(es)
DG STRATO-THERM - Insulated - - - 2.6mm² 1mm² 14AWG 16AWG M5 Orange Nickel -
RS Stock No. 710-5442
Mfr. Part No.322338
TWD95
Each
units
DG STRATO-THERM - Insulated - - - 2.6mm² 1mm² 14AWG 16AWG M5 Orange Nickel -
RS Stock No. 161-1796
Mfr. Part No.31890
TWD5
Each (In a Box of 100)
units
PIDG - Insulated Nylon 4.34mm 7.92mm 1.65mm² 0.26mm² 16AWG 22AWG M4 Red Copper Tin
RS Stock No. 680-5826
Mfr. Part No.342103-1
TWD5
Each (In a Pack of 100)
units
PLASTI-GRIP - Insulated Vinyl 4mm 7.9mm 1.3mm² 0.3mm² 16AWG 22AWG M4 Red Copper Tin
RS Stock No. 163-9995
Mfr. Part No.342103-1
TWD4,973
1 Box of 1000
Box(es)
PLASTI-GRIP - Insulated Vinyl 4mm 7.9mm 1.3mm² 0.3mm² 16AWG 22AWG M4 Red Copper Tin
RS Stock No. 680-5870
Mfr. Part No.51864-1
TWD11
Each (In a Pack of 50)
units
PIDG - Insulated Nylon 4mm 7.92mm 2.6mm² 1mm² 14AWG 16AWG M4 Blue Copper Tin
RS Stock No. 173-3990
Mfr. Part No.51864-1
TWD8
Each (In a Box of 1000)
units
PIDG - Insulated Nylon 4mm 7.92mm 2.6mm² 1mm² 14AWG 16AWG M4 Blue Copper Tin
RS Stock No. 161-1257
Mfr. Part No.322335
TWD41
Each (In a Pack of 10)
units
STRATO-THERM - - - 5mm 8.71mm 2.6mm² 1mm² 14AWG 16AWG M5 - Nickel -
RS Stock No. 136-1646
Mfr. Part No.130102
TWD3,244
1 Box of 1000
Box(es)
PLASTI-GRIP - Insulated Vinyl 5mm 8.7mm 2.6mm² 1mm² 14AWG 16AWG M5 Blue Copper Tin
RS Stock No. 170-9404
Mfr. Part No.322335
TWD35,113
1 Box of 1000
Box(es)
STRATO-THERM - - - 5mm 8.71mm 2.6mm² 1mm² 14AWG 16AWG M5 - Nickel -
RS Stock No. 842-040
Mfr. Part No.130102
TWD3
Each (In a Pack of 100)
units
PLASTI-GRIP - Insulated Vinyl 5mm 8.7mm 2.6mm² 1mm² 14AWG 16AWG M5 Blue Copper Tin
RS Stock No. 710-0251
Mfr. Part No.1-321897-0
TWD150
Each
units
DG STRATO-THERM - Uninsulated - 4.34mm 7.92mm 1.65mm² 0.26mm² 16AWG 22AWG M4 (#8) Grey Nickel Alloy Nickel
RS Stock No. 161-5562
Mfr. Part No.1-321897-0
TWD122
Each (In a Box of 500)
units
DG STRATO-THERM - Uninsulated - 4.34mm 7.92mm 1.65mm² 0.26mm² 16AWG 22AWG M4 (#8) Grey Nickel Alloy Nickel
RS Stock No. 135-5029
Mfr. Part No.320576
TWD11
Each (In a Box of 500)
units
PIDG - Insulated Nylon 8.33mm 13.49mm 6.6mm² 2.6mm² 10AWG 12AWG M8 Yellow Copper Tin
RS Stock No. 457-5227
Mfr. Part No.320576
TWD13
Each (In a Pack of 100)
units
PIDG - Insulated Nylon 8.33mm 13.49mm 6.6mm² 2.6mm² 10AWG 12AWG M8 Yellow Copper Tin
RS Stock No. 457-5097
Mfr. Part No.36151
TWD6
Each (In a Pack of 100)
units
PIDG - Insulated Nylon 3.68mm 7.14mm 1.65mm² 0.26mm² 16AWG 22AWG M3.5 Red Copper Tin
RS Stock No. 373-156
Mfr. Part No.34108
TWD9
Each (In a Pack of 100)
units
SOLISTRAND - Uninsulated - 4.34mm 7.14mm 1.65mm² 0.26mm² 16AWG 22AWG M4 - Copper Tin
RS Stock No. 457-4016
Mfr. Part No.130171
TWD15
Each (In a Pack of 100)
units
PIDG - Insulated - 5.25mm 9.52mm 6.6mm² 2.6mm² 10AWG 12AWG M5 Yellow Copper Tin
RS Stock No. 136-1791
Mfr. Part No.130171
TWD14
Each (In a Box of 500)
units
PIDG - Insulated - 5.25mm 9.52mm 6.6mm² 2.6mm² 10AWG 12AWG M5 Yellow Copper Tin
RS Stock No. 710-0223
Mfr. Part No.51864-2
TWD13
Each (In a Pack of 5)
units
PIDG - Insulated Nylon 5mm 7.92mm 2.6mm² 1mm² 14AWG 16AWG M5 Blue Copper Tin