JW WINCOSteel Threaded Plugs

JW WINCO Threaded Plug: Steel, NBR Seal, Type G, 3/8 in Thd, Internal Hex

The JW WINCO Threaded Plug: Steel is a Type G steel threaded plug with an NBR seal, featuring a 3/8 in thread size and an internal hex drive. This component is designed for sealing and closing threaded ports in…

SKU 3G-OTH-162923

Also listed as: 749G38A · 749 G3 8 A · 749-G3-8-A

Brand

JW WINCO

Item

Threaded Plug: Steel, NBR Seal, Type G, 3/8 in Thd, Internal Hex

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

JW WINCO

Manufacturer Part Number

749-G3/8-A 

Type

NBR Seal, Type G, Internal Hex 

Thd

3/8 in 

Drive Size

22 mm 

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

JW WINCO Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the JW WINCO Threaded Plug used for?

The JW WINCO Threaded Plug is used to seal and close threaded ports in industrial equipment. Its steel body and NBR seal provide a reliable closure for hydraulic and pneumatic systems, preventing leaks and contamination in applications such as manifolds, valves, and cylinders.

What are the specifications of the JW WINCO Threaded Plug 749-G3/8-A?

The JW WINCO Threaded Plug 749-G3/8-A is made of steel with an NBR seal. It has a 3/8 in thread size, Type G thread form, internal hex drive, and a 22 mm drive size. The manufacturer part number is 749-G3/8-A.

Where to buy JW WINCO Threaded Plugs worldwide?

You can source JW WINCO Threaded Plugs through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct components for your application.

How to install a JW WINCO Threaded Plug with internal hex drive?

To install the JW WINCO Threaded Plug, use a 22 mm hex key or socket on the internal hex drive. Apply thread sealant if recommended for your system, then tighten to the manufacturer's torque specification. The NBR seal provides additional leak protection against fluids and gases.

Used in

Common applications for JW WINCO

Machinery assembly — JW WINCO self-locking bearing locknuts (e.g., 1804.1-M50X1.5) for securing bearings on shafts in gearboxes and conveyors.

Fixture building — JW WINCO horizontal U-latch toggle clamps (e.g., 851.3-700-T6) for quick clamping in welding jigs and assembly fixtures.

Material handling — JW WINCO quick-release hoist rings (e.g., 1135-M12-17-ST) for lifting heavy components in manufacturing cells.

Shaft positioning — JW WINCO one-piece shaft collars (e.g., 5WG46/A) for retaining bearings or acting as stops on linear motion systems.

Linkage systems — JW WINCO stainless steel clevis rod ends (e.g., 8NXBIS) for connecting pneumatic cylinders or actuators in automated equipment.

Clamping arm extension — JW WINCO rigid clamping arm extenders (e.g., 801.1-85-16-ST) for increasing reach on toggle clamps in custom fixtures.

JW WINCO Products

3G Electric supplies JW WINCO steel threaded plugs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

Browse all JW WINCO products →Contact our engineers →