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PROTO J3756 SAE Double End Flare Nut Wrench, 11/16 in, 8 3/4 in Overall Length - SAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches
PROTOSAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches

PROTO J3756 SAE Double End Flare Nut Wrench, 11/16 in, 8 3/4 in Overall Length

The PROTO Flare Nut Wrench (MPN J3756) is an SAE, double-end, standard-head, 6-point flare nut wrench made of alloy steel with a satin finish. It features an 11/16 in head size and an overall length of 8 3/4 in.

SKU 3G-OTH-311096

Also listed as: J 3756 · J-3756

Brand
PROTO
Item
J3756 SAE Double End Flare Nut Wrench, 11/16 in, 8 3/4 in Overall Length
Part Number
J3756
Category
SAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches
Available to Order
Also known as:J3756PROTO
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Technical Specifications

PROTO
Manufacturer Part Number
J3756
Type
Satin, Double End
Overall Lg
8 3/4 in
Head Size
11/16 in

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

Product Description

The PROTO Flare Nut Wrench (MPN J3756) is an SAE, double-end, standard-head, 6-point flare nut wrench made of alloy steel with a satin finish. It features an 11/16 in head size and an overall length of 8 3/4 in.

Frequently Asked Questions

What is a PROTO Flare Nut Wrench used for?

A PROTO Flare Nut Wrench is used to tighten or loosen flare nuts on fuel, brake, and hydraulic lines without damaging the fitting. Its 6-point, double-end design provides a secure grip on SAE fasteners, making it essential for automotive and industrial maintenance.

What are the specifications of the PROTO J3756 Flare Nut Wrench?

The PROTO J3756 Flare Nut Wrench is an SAE, double-end, standard-head, 6-point wrench made of alloy steel with a satin finish. It has an 11/16 in head size and an overall length of 8 3/4 in. The manufacturer part number is J3756.

Where to buy a PROTO Flare Nut Wrench worldwide?

You can source the PROTO Flare Nut Wrench (J3756) through 3G Electric, which handles logistics, customs, and delivery to worldwide destinations. As a global industrial supplier, 3G Electric provides genuine PROTO tools and supports international procurement with full shipping coordination.

How to select the right flare nut wrench size?

To select the right flare nut wrench, match the head size to the nut on your fitting. For SAE fasteners, measure the nut across the flats. The PROTO J3756 has an 11/16 in head size, suitable for common brake and fuel line nuts. Always verify the wrench fits snugly to avoid rounding.

Used in

Common applications for PROTO
Industrial maintenance — PROTO J6014CXCERT micrometer torque wrench for tightening fasteners to 50–250 ft-lb with tether capability.
Assembly operations — PROTO J6345A electronic torque wrench for 5–50 ft-lb control with audible and visual indicators.
Plumbing and mechanical — PROTO J812HD straight pipe wrench with 2 in jaw capacity for gripping and turning pipes.
Precision fastening — PROTO J61929 multi-bit screw and nut driver kit with 26 alloy steel bits for assembly and maintenance.
Tool organization — PROTO JUC3743-3SG heavy-duty utility cart with drawers, power strip, and padlock for shop floor use.
Metric fastener service — PROTO JSCVM-20SB 20-piece ratcheting combination wrench set covering 6 mm to 32 mm.
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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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