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
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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.
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 PROTOPROTO 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.






