PROTO Flare Nut Wrench: Alloy Steel, Satin, 13 mm_14 mm Head Size
The PROTO Flare Nut Wrench (MPN J3713M) is a metric, double-end, standard-head, 6-point flare nut wrench made of alloy steel with a satin finish. It features 13 mm and 14 mm head sizes and an overall length of 7 1/2…
SKU 3G-OTH-301387
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Product Description
The PROTO Flare Nut Wrench (MPN J3713M) is a metric, double-end, standard-head, 6-point flare nut wrench made of alloy steel with a satin finish. It features 13 mm and 14 mm head sizes and an overall length of 7 1/2 inches.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is a PROTO Flare Nut Wrench used for?
A PROTO Flare Nut Wrench is designed for tightening or loosening flare nuts on fuel, brake, and hydraulic lines. Its 6-point, double-end design grips the nut flats securely, reducing the risk of rounding or damaging soft metal fittings in automotive and industrial maintenance.
What are the specifications of the PROTO J3713M Flare Nut Wrench?
The PROTO J3713M Flare Nut Wrench is a metric, double-end, standard-head, 6-point wrench made of alloy steel with a satin finish. It has 13 mm and 14 mm head sizes and an overall length of 7 1/2 inches. The manufacturer part number is J3713M.
Where to buy a PROTO Flare Nut Wrench worldwide?
3G Electric supplies the PROTO Flare Nut Wrench (J3713M) to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this PROTO wrench for your maintenance needs.
How to select the right flare nut wrench size?
To select the right flare nut wrench, measure the nut's hex flats across the flats in millimeters. The PROTO J3713M covers 13 mm and 14 mm sizes. Ensure the wrench is a 6-point design to grip the nut securely without slipping, especially on soft brass or aluminum fittings.
Used in
Common applications for PROTOPROTO Products
3G Electric supplies PROTO metric, double end, standard-head, 6-point, flare nut wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













