DuraSeal heat-shrink fork terminals: reliable connection solutions

Our DuraSeal heat-shrink fork terminals (also known as fork terminals) series on Duraseal offers insulated fork clamps for safe and efficient connections. Thanks to the fork design, they are easy to install and ideal for applications in the automotive industry, machinery, and electrical engineering. The waterproof heat-shrink version ensures that the connections are protected against moisture, corrosion, and other environmental influences, while the DuraSeal heat-shrink fork terminals with adhesive provide extra strength for long-lasting performance.

Our heat-shrink fork terminals are designed for automotive and industrial applications, with TE Connectivity Raychem ensuring the quality and reliability of the materials used. Explore our full range of DuraSeal heat-shrink connectors for automotive and choose the right fork terminal for your project.

Product Specifications Fork Cable Lugs

Item Number Dimensions (Max.) Thread Nominal Length (L Nom.) Color Wire Size Max. Wire Diameter Min. Wire Diameter
B-106-2401 3.81 M4 7.87 Red 22–18 3.81 1.40
B-106-2402 4.57 M4 7.87 Blue 16–14 4.45 2.00
B-106-2403 6.35 M4 7.87 Yellow 12–10 6.35 2.79
B-106-2502 4.57 M5 9.91 Blue 16–14 4.45 2.00
B-106-2503 6.35 M5 9.91 Yellow 12–10 6.35 2.79

The fork terminal variants B-106-2401, B-106-2402, B-106-2403, B-106-2502, and B-106-2503 differ in wire size, fork width, and finish, ensuring that there is always a suitable solution available.

Our DuraSeal fork terminals provide a strong crimp connection and a corrosion-resistant finish, which not only optimizes functionality but also ensures a secure and reliable connection thanks to the strain relief.

Product overview of heat-shrink fork terminals

Product Features (Typical)

Property Specifications
Working Temperature -55°C to 125°C
Shrink Ratio Approximately 2:1
Physical Properties Cutting Resistance: 31.7 kg
Wire Stretching after Shrinking and Recovery Red: 11.3 kg; Blue: 22.7 kg; Yellow: 27.2 kg
Flame Retardant Non-flame retardant
Scratch Resistance after Heat Aging (168 hours at 160°C) No Cracking
Chemical Properties Solvent Resistance: Isopropyl alcohol, Trichloroethylene, Gasoline, Battery Acid, Diesel, Motor Oil, Antifreeze, Brake Fluid, 5% Salt Water
Electrical Properties Dielectric Strength: 1000 V, Insulation Resistance: 10 Megaohm

Specifications/approvals & installation requirements

Series Certification UL and CUL Registered at Lloyd’s File Number
B-106 TE 91J4, File E87681 RB-108 65 247 HH 02-93
B-106-3XXX/B-106-4XXX UL and CUL E157833 – –
Select the correct size for terminal and disconnect connections, strip the wire 6.5 mm (1/4 inch).
Crimp using the AD-1522 crimp tool for pre-insulated crimp connections.
Heat the terminal or disconnect with a hot air gun until the tube recovers and the adhesive flows. Avoid heating the ring or fork of metal parts.

For the correct installation of these devices, the correct crimping tool and the heating instrument with reflector attachment must be used. The AD-1522 crimping tool and the HL1920E/HL2020E heating instruments are recommended. Refer to the TE installation procedure RPIP-684-00 for detailed instructions.

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Durable and reliable connections:

Our high-quality crimp connections and terminals guarantee a strong, corrosion-resistant connection, even under demanding conditions.

Wide range for diverse applications:

From automotive to electrical engineering and machinery – always the right solution for every installation.

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Certified products that meet the highest quality standards, suitable for both professional and DIY use.