Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
PROTO J3830 SAE Single End Ratcheting 12-Point Flare Nut Wrench, 15/16 in - SAE, Single End, Ratcheting 12-Point Flare Nut Wrenches
PROTOSAE, Single End, Ratcheting 12-Point Flare Nut Wrenches

PROTO J3830 SAE Single End Ratcheting 12-Point Flare Nut Wrench, 15/16 in

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 15/16 in head size and an overall length of 9 1/2 in (MPN J3830).

SKU 3G-OTH-594837

Also listed as: J 3830 · J-3830

Brand
PROTO
Item
J3830 SAE Single End Ratcheting 12-Point Flare Nut Wrench, 15/16 in
Part Number
J3830
Category
SAE, Single End, Ratcheting 12-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.
EXW Singapore
Collect or forward from our office
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
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

PROTO
Manufacturer Part Number
J3830
Type
Black Oxide
Overall Lg
9 1/2 in
Head Size
15/16 in

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 is a single-end, ratcheting 12-point SAE wrench made from alloy steel with a black oxide finish. It features a 15/16 in head size and an overall length of 9 1/2 in (MPN J3830).

Frequently Asked Questions

What is the PROTO Flare Nut Wrench used for?

The PROTO Flare Nut Wrench is used for tightening or loosening flare nuts on hydraulic, fuel, and refrigeration lines. Its ratcheting 12-point design provides grip without rounding soft brass or aluminum nuts, making it essential for automotive, HVAC, and industrial maintenance.

What are the specifications of the PROTO J3830 Flare Nut Wrench?

The PROTO J3830 is a single-end, ratcheting 12-point SAE flare nut wrench. It has a 15/16 in head size, 9 1/2 in overall length, and is made from alloy steel with a black oxide finish. It is designed for professional use on flare nuts.

Where to buy the PROTO Flare Nut Wrench worldwide?

3G Electric supplies the PROTO Flare Nut Wrench worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order the PROTO J3830 or any PROTO tool for your facility.

How to maintain a PROTO Flare Nut Wrench?

To maintain a PROTO Flare Nut Wrench, clean it after use with a solvent to remove grease and debris. Apply a light coat of oil to the ratcheting mechanism and pivot points to prevent corrosion. Store in a dry tool chest to protect the black oxide finish.

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.
Not sure this is the right part? Photo-identify it→

PROTO 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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from PROTO

View all PROTO parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first