PROTO Flare Nut Wrench: Alloy Steel, Satin, 16 mm_18 mm Head Size
The PROTO J3716MT is a metric, double-end, standard-head, 12-point flare nut wrench made from alloy steel with a satin finish. It features 16 mm and 18 mm head sizes and an overall length of 8 3/4 inches.
SKU 3G-OTH-401473
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Product Description
The PROTO J3716MT is a metric, double-end, standard-head, 12-point flare nut wrench made from alloy steel with a satin finish. It features 16 mm and 18 mm head sizes and an overall length of 8 3/4 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 the PROTO J3716MT flare nut wrench used for?
The PROTO J3716MT flare nut wrench is designed for tightening or loosening flare nuts on hydraulic, fuel, and refrigeration lines. Its 12-point, double-end design with 16 mm and 18 mm heads provides a secure grip without rounding soft metal nuts, making it essential for automotive and industrial maintenance.
What are the specifications of the PROTO J3716MT flare nut wrench?
The PROTO J3716MT is a metric, double-end, standard-head, 12-point flare nut wrench made from alloy steel with a satin finish. It has 16 mm and 18 mm head sizes and an overall length of 8 3/4 inches. The manufacturer part number is J3716MT.
Where to buy the PROTO J3716MT flare nut wrench worldwide?
3G Electric supplies the PROTO J3716MT flare nut wrench worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this alloy steel, satin finish wrench with 16 mm and 18 mm heads.
How to select the right flare nut wrench size?
To select the right flare nut wrench, match the wrench head size to the nut's outer diameter. For the PROTO J3716MT, use the 16 mm end for 16 mm nuts and the 18 mm end for 18 mm nuts. Always choose a 12-point design like this PROTO wrench to avoid rounding soft metal flare nuts.
Used in
Common applications for PROTOPROTO Products
3G Electric supplies PROTO metric, double end, standard-head, 12-point flare nut wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.











