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 Minimum Wire Size mm² Outer Ring Diameter Maximum Wire Size mm² Maximum Wire Size AWG Minimum Wire Size AWG Stud Size Colour Contact Material Contact Plating
RS stock no. 822-1448
Mfr. Part No.19203-0388
BrandMolex
R 1.517
Each (In a Pack of 100)
units
- 0388 Uninsulated - 5.38mm 1mm² 9.76mm 2.5mm² 14AWG 16AWG #10 - Steel Nickel
RS stock no. 790-6908
Mfr. Part No.19324-0004
BrandMolex
R 5.137
Each (In a Pack of 50)
units
Avikrimp - Insulated Polyamide 4.39mm 0.5mm² 7.92mm 1mm² - - M4 (#8) - Copper Alloy Tin
RS stock no. 822-1479
Mfr. Part No.19221-0233
BrandMolex
R 22.01
Each
units
- 0233 Uninsulated - 8.64mm 35mm² 15.88mm 35mm² 2AWG 2AWG M8 (5/16) - Copper Tin
RS stock no. 161-9379
Mfr. Part No.19324-0004
BrandMolex
R 3,628.69
1 Bag of 1000
Bag(s)
Avikrimp - Insulated Polyamide 4.39mm 0.5mm² 7.92mm 1mm² - - M4 (#8) - Copper Alloy Tin
RS stock no. 161-9378
Mfr. Part No.19324-0003
BrandMolex
R 1,933.78
1 Bag of 1000
Bag(s)
Avikrimp - Insulated Polyamide 3.79mm 0.5mm² 6.45mm 1mm² - - M3 to M3.5 (#5 to #6) - Copper Alloy Tin
RS stock no. 790-6905
Mfr. Part No.19324-0003
BrandMolex
R 3.15
Each (In a Pack of 50)
units
Avikrimp - Insulated Polyamide 3.79mm 0.5mm² 6.45mm 1mm² - - M3 to M3.5 (#5 to #6) - Copper Alloy Tin
RS stock no. 822-1135
Mfr. Part No.19054-0054
BrandMolex
R 2.056
Each (In a Pack of 100)
units
200 19054 Insulated PVC 4.39mm 0.25mm² 6.45mm 1.5mm² 18AWG 22AWG M4 Red Copper Tin
RS stock no. 822-1167
Mfr. Part No.19069-0035
BrandMolex
R 1.694
Each (In a Pack of 100)
units
100 19069 Uninsulated - 4.39mm 0.25mm² 8.18mm 1.5mm² 18AWG 22AWG M4 (#8) - Copper Tin
RS stock no. 167-6425
Mfr. Part No.19323-0008
BrandMolex
R 1,533.63
1 Bag of 1000
Bag(s)
VersaKrimp - Uninsulated - 4.39mm 1mm² 7.92mm 2.5mm² - - M4 (#8) - Copper Alloy Tin
RS stock no. 822-1230
Mfr. Part No.19073-0097
BrandMolex
R 4.475
Each (In a Pack of 100)
units
800 19073 Insulated Nylon 5.03mm 1mm² 8.94mm 2.5mm² 14AWG 16AWG M5 (#10) Blue Copper Tin
RS stock no. 822-1173
Mfr. Part No.19069-0101
BrandMolex
R 4,514.96
1 Pack of 4000
Pack(s)
- 0101 Uninsulated - 3.71mm 1mm² 6.6mm 2.5mm² 14AWG 16AWG M3 to M3.5 (#5 to #6) - Copper Tin
RS stock no. 822-1233
Mfr. Part No.19073-0085
BrandMolex
R 4.489
Each (In a Pack of 100)
units
800 19073 Insulated Nylon 4.39mm 1mm² 8.18mm 2.5mm² 14AWG 16AWG M4 (#8) Blue Copper Tin
RS stock no. 790-6952
Mfr. Part No.19323-0004
BrandMolex
R 2.65
Each (In a Pack of 50)
units
VersaKrimp - Uninsulated - 4.39mm 0.5mm² 7.92mm 1mm² - - M4 (#8) - Copper Alloy Tin
RS stock no. 822-1340
Mfr. Part No.19164-0003
BrandMolex
R 8.949
Each (In a Pack of 50)
units
- 0003 Insulated NiAc 5.03mm 0.38mm² 8.1mm 0.96mm² 18AWG 22AWG M5 (#10) Red Copper Alloy Tin
RS stock no. 167-6420
Mfr. Part No.19323-0004
BrandMolex
R 2,410.69
1 Bag of 1000
Bag(s)
VersaKrimp - Uninsulated - 4.39mm 0.5mm² 7.92mm 1mm² - - M4 (#8) - Copper Alloy Tin
RS stock no. 790-6920
Mfr. Part No.19324-0010
BrandMolex
R 5.292
Each (In a Pack of 50)
units
Avikrimp - Insulated Polyamide 6.61mm 1mm² 11.86mm 2.5mm² - - M6 (1/4) - Copper Alloy Tin
RS stock no. 161-7932
Mfr. Part No.19324-0014
BrandMolex
R 2.418
Each (In a Bag of 500)
units
Avikrimp - Insulated Polyamide 6.61mm 2.5mm² 13.46mm 6mm² - - M6 (1/4) - Copper Alloy Tin
RS stock no. 167-6405
Mfr. Part No.19324-0013
BrandMolex
R 4.109
Each (In a Bag of 500)
units
Avikrimp - Insulated Polyamide 5.39mm 2.5mm² 9.53mm 6mm² - - M5 - Copper Alloy Tin
RS stock no. 822-1476
Mfr. Part No.19221-0238
BrandMolex
R 28.10
Each
units
- 0238 Uninsulated - 10.16mm 50mm² 16.66mm 50mm² 1AWG 1AWG M9 (3/8) - Copper Tin
RS stock no. 790-6927
Mfr. Part No.19324-0009
BrandMolex
R 2.65
Each (In a Pack of 50)
units
Avikrimp - Insulated Polyamide 5.39mm 1mm² 8.69mm 2.5mm² - - M5 - Copper Alloy Tin