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PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/4 in Head Size, 9 1/4 in Overall Lg - SAE, Double End, Standard-Head, 12-Point Flare Nut Wrenches
PROTOSAE, Double End, Standard-Head, 12-Point Flare Nut Wrenches

PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/4 in Head Size, 9 1/4 in Overall Lg

The PROTO Flare Nut Wrench (MPN J3757T) is a double-end, standard-head, 12-point SAE flare nut wrench made of alloy steel with a satin finish. It features a 3/4 in head size and 9 1/4 in overall length.

SKU 3G-OTH-303809

Brand
PROTO
Item
Flare Nut Wrench: Alloy Steel, Satin, 3/4 in Head Size, 9 1/4 in Overall Lg
Category
SAE, Double End, Standard-Head, 12-Point Flare Nut Wrenches
Available to Order
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Technical specs
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

PROTO
Manufacturer Part Number
J3757T
Type
Satin, Double End
Overall Lg
9 1/4 in
Head Size
3/4 in

Technical Documents

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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO Flare Nut Wrench (MPN J3757T) is a double-end, standard-head, 12-point SAE flare nut wrench made of alloy steel with a satin finish. It features a 3/4 in head size and 9 1/4 in overall length.

Frequently Asked Questions

What is the PROTO Flare Nut Wrench J3757T used for?

The PROTO Flare Nut Wrench J3757T is used for tightening or loosening flare nuts on brake lines, fuel lines, and hydraulic fittings. Its 12-point, double-end design provides a secure grip on SAE fasteners without rounding, making it essential for automotive and industrial maintenance.

What are the specifications of the PROTO Flare Nut Wrench J3757T?

The PROTO Flare Nut Wrench J3757T is a double-end, standard-head, 12-point SAE flare nut wrench made of alloy steel with a satin finish. It has a 3/4 in head size and 9 1/4 in overall length. The manufacturer part number is J3757T.

Where to buy the PROTO Flare Nut Wrench J3757T worldwide?

You can source the PROTO Flare Nut Wrench J3757T through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to maintain a PROTO Flare Nut Wrench?

To maintain a PROTO Flare Nut Wrench, clean it after each use with a dry cloth to remove grease and debris. Store in a dry tool chest to prevent corrosion. Avoid using cheater bars or impact tools, as alloy steel wrenches are designed for hand-torque applications only.

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, 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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