PROTO Open End Wrench: Alloy Steel, Satin, 7/8 in_13/16 in Head Size, 10 1/8 in Overall Lg
The PROTO J3040 is an SAE double-end open end wrench made from alloy steel with a satin finish. It features head sizes of 7/8 in and 13/16 in, with an overall length of 10 1/8 in.
SKU 3G-OTH-284829
Also listed as: J 3040 · J-3040
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.
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Product Description
The PROTO J3040 is an SAE double-end open end wrench made from alloy steel with a satin finish. It features head sizes of 7/8 in and 13/16 in, with an overall length of 10 1/8 in.
Frequently Asked Questions
What is the PROTO J3040 open end wrench used for?
The PROTO J3040 is a double-end open end wrench designed for turning nuts and bolts in industrial maintenance, automotive repair, and mechanical assembly. Its SAE sizing and satin finish suit general-purpose fastening tasks where corrosion resistance and grip are needed.
What are the specifications of the PROTO J3040 wrench?
The PROTO J3040 is an SAE double-end open end wrench made from alloy steel with a satin finish. It has head sizes of 7/8 in and 13/16 in, with an overall length of 10 1/8 in. The manufacturer part number is J3040.
Where to buy the PROTO J3040 wrench worldwide?
3G Electric supplies the PROTO J3040 open end wrench worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to select the right PROTO open end wrench size?
Select a PROTO open end wrench by matching the head size to the nut or bolt dimension. For the J3040, use the 7/8 in end for larger fasteners and the 13/16 in end for smaller ones. Ensure the wrench fits snugly to avoid rounding corners.
Used in
Common applications for PROTOPROTO Products
3G Electric supplies PROTO sae, double end, open end wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
