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

PROTO Flare Nut Wrench: Alloy Steel, Black Oxide, 5/8 in Head Size - SAE, Single End, Ratcheting 12-Point Flare Nut Wrenches
PROTOSAE, Single End, Ratcheting 12-Point Flare Nut Wrenches

PROTO Flare Nut Wrench: Alloy Steel, Black Oxide, 5/8 in Head Size

The PROTO Flare Nut Wrench is a single-end, ratcheting 12-point SAE wrench made from alloy steel with a black oxide finish. It features a 5/8 in head size and an overall length of 7 1/4 in (MPN J3820). 3G Electric…

SKU 3G-OTH-594834

Brand
PROTO
Item
Flare Nut Wrench: Alloy Steel, Black Oxide, 5/8 in Head Size
Category
SAE, Single End, Ratcheting 12-Point Flare Nut Wrenches
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Technical Specifications

PROTO
Manufacturer Part Number
J3820
Type
Black Oxide
Overall Lg
7 1/4 in
Head Size
5/8 in
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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO Flare Nut Wrench is a single-end, ratcheting 12-point SAE wrench made from alloy steel with a black oxide finish. It features a 5/8 in head size and an overall length of 7 1/4 in (MPN J3820). 3G Electric interprets customer demand and delivers genuine industrial equipment across 14 departments—and far more—with specialist depth in combustion, pumps, and controls as an authorised distributor.

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 Flare Nut Wrench used for?

The PROTO Flare Nut Wrench is designed for tightening or loosening flare nuts on hydraulic, fuel, and refrigeration lines. Its ratcheting 12-point SAE head provides secure grip on 5/8 in fasteners, reducing rounding risk. 3G Electric supplies this wrench globally across industrial maintenance and repair applications.

What are the specifications of the PROTO J3820 Flare Nut Wrench?

The PROTO J3820 is a single-end, ratcheting 12-point SAE flare nut wrench with a 5/8 in head size and 7 1/4 in overall length. It is made from alloy steel with a black oxide finish. 3G Electric sources genuine PROTO tools for worldwide delivery.

Where to buy the PROTO Flare Nut Wrench in worldwide?

3G Electric supplies the PROTO Flare Nut Wrench (MPN J3820) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us to order this genuine PROTO tool for your industrial maintenance needs.

How to maintain a PROTO Flare Nut Wrench?

To maintain your PROTO Flare Nut Wrench, clean it after use with a dry cloth to remove debris and moisture. Apply light oil to the ratcheting mechanism periodically. Store in a dry environment to prevent corrosion. 3G Electric provides genuine PROTO tools and support for proper care.

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, single end, ratcheting 12-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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PROTO Flare Nut Wrench: Alloy Steel, Black Oxide, 15/16 in Head Size, 9 1/2 in Overall Lg (MPN J3830). Key specifications — attr309723: No; attr309730: Black Oxide; attr309729: Alloy Steel; attr324937: PROTO.
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PROTO Flare Nut Wrench: Alloy Steel, Black Oxide, 15/16 in Head Size, 9 1/2 in Overall Lg (MPN J3830). Key specifications — attr309723: No; attr309730: Black Oxide; attr309729: Alloy Steel; attr324937: PROTO.
PROTO Flare Nut Wrench: Alloy Steel, Black Oxide, 11/16 in Head Size, 7 1/4 in Overall Lg (MPN J3822). Key specifications — attr309723: No; attr309730: Black Oxide; attr309729: Alloy Steel; attr324937: PROTO.
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PROTO Flare Nut Wrench: Alloy Steel, Black Oxide, 11/16 in Head Size, 7 1/4 in Overall Lg (MPN J3822). Key specifications — attr309723: No; attr309730: Black Oxide; attr309729: Alloy Steel; attr324937: PROTO.
PROTO Flare Nut Wrench: Alloy Steel, Black Oxide, 9/16 in Head Size, 7 1/4 in Overall Lg (MPN J3818). Key specifications — attr309723: No; attr309730: Black Oxide; attr309729: Alloy Steel; attr324937: PROTO.
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PROTO Flare Nut Wrench: Alloy Steel, Black Oxide, 9/16 in Head Size, 7 1/4 in Overall Lg (MPN J3818). Key specifications — attr309723: No; attr309730: Black Oxide; attr309729: Alloy Steel; attr324937: PROTO.
PROTO Flare Nut Wrench: Alloy Steel, Black Oxide, 3/8 in Head Size, 5 1/2 in Overall Lg (MPN J3812). Key specifications — attr309723: No; attr309730: Black Oxide; attr309729: Alloy Steel; attr324937: PROTO.
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PROTO Flare Nut Wrench: Alloy Steel, Black Oxide, 3/8 in Head Size, 5 1/2 in Overall Lg (MPN J3812). Key specifications — attr309723: No; attr309730: Black Oxide; attr309729: Alloy Steel; attr324937: PROTO.
PROTO Flare Nut Wrench: Alloy Steel, Black Oxide, 13/16 in Head Size, 9 1/2 in Overall Lg (MPN J3826). Key specifications — attr309723: No; attr309730: Black Oxide; attr309729: Alloy Steel; attr324937: PROTO.
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PROTO Flare Nut Wrench: Alloy Steel, Black Oxide, 13/16 in Head Size, 9 1/2 in Overall Lg (MPN J3826). Key specifications — attr309723: No; attr309730: Black Oxide; attr309729: Alloy Steel; attr324937: PROTO.