PROTO Open End Wrench: Alloy Steel, Black Oxide, 7/8 in_13/16 in Head Size
The PROTO J3040B is an SAE double-end open end wrench made from alloy steel with a black oxide finish. It features head sizes of 7/8 in and 13/16 in, with an overall length of 10 15/64 in.
SKU 3G-OTH-284865
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 J3040B is an SAE double-end open end wrench made from alloy steel with a black oxide finish. It features head sizes of 7/8 in and 13/16 in, with an overall length of 10 15/64 in.
Frequently Asked Questions
What is the PROTO J3040B open end wrench used for?
The PROTO J3040B is a double-end open end wrench used for tightening or loosening SAE fasteners in industrial maintenance, automotive repair, and mechanical assembly. Its alloy steel construction and black oxide finish provide durability and corrosion resistance for demanding environments.
What are the specifications of the PROTO J3040B wrench?
The PROTO J3040B is an SAE double-end open end wrench with head sizes of 7/8 in and 13/16 in. It has an overall length of 10 15/64 in, is made from alloy steel, and features a black oxide finish. The manufacturer part number is J3040B.
Where to buy the PROTO J3040B wrench worldwide?
You can source the PROTO J3040B wrench through 3G Electric, a global industrial equipment distributor. We handle logistics, customs clearance, and delivery to worldwide destinations, ensuring the wrench reaches your facility efficiently.
How to select the correct PROTO open end wrench size?
To select the correct PROTO open end wrench, match the head size to the fastener's SAE dimension. The J3040B offers two sizes (7/8 in and 13/16 in) for versatility. Ensure the wrench's opening fits snugly over the nut or bolt head to avoid rounding edges during use.
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.
