Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

PROTO Flare Nut Wrench: Alloy Steel, Satin, 7/16 in Head Size - SAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches
PROTOSAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches

PROTO Flare Nut Wrench: Alloy Steel, Satin, 7/16 in Head Size

The PROTO Flare Nut Wrench (MPN J3752) is a 6-point, double-end, standard-head SAE flare nut wrench with a 7/16 in head size and 6 in overall length. It is constructed from alloy steel with a satin finish.

SKU 3G-OTH-311088

Also listed as: J 3752 · J-3752

Brand
PROTO
Item
Flare Nut Wrench: Alloy Steel, Satin, 7/16 in Head Size
Category
SAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

PROTO
Manufacturer Part Number
J3752

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The PROTO Flare Nut Wrench (MPN J3752) is a 6-point, double-end, standard-head SAE flare nut wrench with a 7/16 in head size and 6 in overall length. It is constructed from alloy steel with a satin finish.

Frequently Asked Questions

What is the PROTO Flare Nut Wrench J3752 used for?

The PROTO Flare Nut Wrench J3752 is used for tightening or loosening flare nuts on brake lines, fuel lines, and hydraulic fittings. Its 6-point, double-end design grips the nut securely to prevent rounding, making it essential for automotive and industrial maintenance tasks.

What are the specifications of the PROTO Flare Nut Wrench J3752?

The PROTO Flare Nut Wrench J3752 is a 6-point, double-end, standard-head SAE wrench with a 7/16 in head size and 6 in overall length. It is made from alloy steel with a satin finish. The manufacturer part number is J3752.

Where to buy the PROTO Flare Nut Wrench J3752 worldwide?

You can source the PROTO Flare Nut Wrench J3752 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations, ensuring the wrench reaches your facility reliably.

How to maintain the PROTO Flare Nut Wrench J3752?

To maintain the PROTO Flare Nut Wrench J3752, clean it after each use with a dry cloth to remove grease and debris. Store in a dry environment to prevent corrosion. Avoid using the wrench on damaged or rusted nuts to preserve the satin finish and alloy steel integrity.

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, 6-point flare nut wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
PROTO Flare Nut Wrench: Alloy Steel, Satin, 1/2 in Head Size, 6 1/2 in Overall Lg, 6-Point Flare Nut (MPN J3753)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 1/2 in Head Size, 6 1/2 in Overall Lg, 6-Point Flare Nut (MPN J3753)
PROTO Flare Nut Wrench: Alloy Steel, Satin, 11/16 in Head Size, 8 3/4 in Overall Lg, Double End (MPN J3756)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 11/16 in Head Size, 8 3/4 in Overall Lg, Double End (MPN J3756)
PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/8 in Head Size, 5 3/4 in Overall Lg, Double End (MPN J3751T)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/8 in Head Size, 5 3/4 in Overall Lg, Double End (MPN J3751T)
PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/8 in_7/16 in Head Size, 6 1/4 in Overall Lg, SAE (MPN J3764T)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/8 in_7/16 in Head Size, 6 1/4 in Overall Lg, SAE (MPN J3764T)
PROTO Flare Nut Wrench: Alloy Steel, Satin, 5/8 in_11/16 in Head Size, 8 3/4 in Overall Lg, SAE, Std (MPN J3772T)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 5/8 in_11/16 in Head Size, 8 3/4 in Overall Lg, SAE, Std (MPN J3772T)

More from PROTO

View all PROTO parts
PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/8 in_7/16 in Head Size, 6 1/4 in Overall Lg, SAE (MPN J3764)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/8 in_7/16 in Head Size, 6 1/4 in Overall Lg, SAE (MPN J3764)
PROTO Flare Nut Wrench: Alloy Steel, Satin, 5/8 in Head Size, 7 3/4 in Overall Lg (MPN J3755)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 5/8 in Head Size, 7 3/4 in Overall Lg (MPN J3755)
PROTO Flare Nut Wrench: Alloy Steel, Satin, 1/2 in_9/16 in Head Size, 7 1/2 in Overall Lg, SAE (MPN J3768)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 1/2 in_9/16 in Head Size, 7 1/2 in Overall Lg, SAE (MPN J3768)
PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/4 in Head Size, 9 1/4 in Overall Lg (MPN J3757)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/4 in Head Size, 9 1/4 in Overall Lg (MPN J3757)
PROTO Flare Nut Wrench: Alloy Steel, Satin, 9/16 in Head Size, 7 in Overall Lg (MPN J3754)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 9/16 in Head Size, 7 in Overall Lg (MPN J3754)
PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/8 in Head Size, 5 3/4 in Overall Lg (MPN J3751)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/8 in Head Size, 5 3/4 in Overall Lg (MPN J3751)
PROTO Flare Nut Wrench: Alloy Steel, Satin, 5/8 in_11/16 in Head Size, 8 3/4 in Overall Lg, SAE (MPN J3772)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 5/8 in_11/16 in Head Size, 8 3/4 in Overall Lg, SAE (MPN J3772)
PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/4 in_7/8 in Head Size, 9 1/2 in Overall Lg (MPN J3776H)
PROTO
PROTO Flare Nut Wrench: Alloy Steel, Satin, 3/4 in_7/8 in Head Size, 9 1/2 in Overall Lg (MPN J3776H)