We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

PROTO Flare Nut Wrench: Alloy Steel, Satin, 5/8 in_11/16 in Head Size, 8 3/4 in Overall Lg - SAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches
PROTOSAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches

PROTO Flare Nut Wrench: Alloy Steel, Satin, 5/8 in_11/16 in Head Size, 8 3/4 in Overall Lg

The PROTO Flare Nut Wrench (MPN J3772) is an SAE, double-end, standard-head, 6-point flare nut wrench made of alloy steel with a satin finish. It features 5/8 in and 11/16 in head sizes and an overall length of 8 3/4 in.

SKU 3G-OTH-311094

Brand
PROTO
Item
Flare Nut Wrench: Alloy Steel, Satin, 5/8 in_11/16 in Head Size, 8 3/4 in Overall Lg
Category
SAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches
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Technical Specifications

PROTO
Manufacturer Part Number
J3772
Type
Satin, 5/8 in_11/16 in Head Size, SAE
Overall Lg
8 3/4 in
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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO Flare Nut Wrench (MPN J3772) is an SAE, double-end, standard-head, 6-point flare nut wrench made of alloy steel with a satin finish. It features 5/8 in and 11/16 in head sizes and an overall length of 8 3/4 in.

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 configuration grips the nut flats securely, reducing the risk of rounding or damaging soft metal fittings in automotive and industrial maintenance applications.

What are the specifications of the PROTO J3772 Flare Nut Wrench?

The PROTO J3772 Flare Nut Wrench is an SAE double-end, standard-head, 6-point wrench made of alloy steel with a satin finish. It has head sizes of 5/8 in and 11/16 in, with an overall length of 8 3/4 in. The manufacturer part number is J3772.

Where to buy a PROTO Flare Nut Wrench worldwide?

3G Electric supplies the PROTO Flare Nut Wrench (J3772) to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this PROTO wrench for your maintenance or repair needs.

How to select the right flare nut wrench size?

To select the correct flare nut wrench, measure the hex nut on the fitting across the flats. The PROTO J3772 covers 5/8 in and 11/16 in SAE sizes. Always match the wrench size exactly to the nut to prevent slippage and damage. For metric fittings, choose a corresponding metric flare nut wrench.

Used in

Common applications for PROTO
Automotive assembly — PROTO J72102 impact socket set for fastening lug nuts on production lines
Heavy equipment maintenance — PROTO J3772T flare nut wrench for hydraulic line fittings on excavators
General industrial repair — PROTO J795SA adjustable wrench set for tightening bolts on conveyor systems
Aerospace manufacturing — PROTO J5240A slotted bit socket for adjusting fasteners in confined spaces
Oil and gas pipeline work — PROTO J5438 12-point socket for valve assembly in refineries
Construction site toolkits — PROTO J8179-T500 double box wrench for structural steel bolting

PROTO Products

3G Electric supplies PROTO sae, 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.

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