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PROTO J3776H SAE Double End 6-Point Flare Nut Wrench - SAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches
PROTOSAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches

PROTO J3776H SAE Double End 6-Point Flare Nut Wrench

The PROTO J3776H is a double-end, standard-head, 6-point SAE flare nut wrench made from alloy steel with a satin finish. It features 3/4 in and 7/8 in head sizes and a 9 1/2 in overall length.

SKU 3G-OTH-311104

Brand
PROTO
Item
J3776H SAE Double End 6-Point Flare Nut Wrench
Part Number
J3776H
Category
SAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches
Available to Order
Also known as:J3776HPROTO
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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
J3776H
Type
Satin, 3/4 in_7/8 in Head Size
Overall Lg
9 1/2 in

Technical Documents

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

Product Description

The PROTO J3776H is a double-end, standard-head, 6-point SAE flare nut wrench made from alloy steel with a satin finish. It features 3/4 in and 7/8 in head sizes and a 9 1/2 in overall length.

Frequently Asked Questions

What is the PROTO J3776H flare nut wrench used for?

The PROTO J3776H is a double-end, 6-point SAE flare nut wrench designed for tightening or loosening flare nuts on hydraulic, fuel, and refrigeration lines. Its 3/4 in and 7/8 in head sizes and 9 1/2 in overall length provide leverage and access in tight spaces.

What are the specifications of the PROTO J3776H flare nut wrench?

The PROTO J3776H is a double-end, standard-head, 6-point SAE flare nut wrench made from alloy steel with a satin finish. It has head sizes of 3/4 in and 7/8 in, and an overall length of 9 1/2 in. The manufacturer part number is J3776H.

Where to buy the PROTO J3776H flare nut wrench worldwide?

3G Electric supplies the PROTO J3776H flare nut wrench 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 production needs.

How to select the right flare nut wrench size?

To select the right flare nut wrench, match the wrench head size to the nut's hex dimension. For the PROTO J3776H, use the 3/4 in end for 3/4 in nuts and the 7/8 in end for 7/8 in nuts. Ensure the 6-point design fully engages the nut to prevent rounding.

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
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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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