JW WINCORevolving Ball Knobs with Threaded Hole

JW WINCO Revolving Ball Knob with Threaded Hole

The JW WINCO Revolving Ball Knob is a plastic ball knob with a stainless steel threaded hole, featuring a 3/8"-16 thread and a 0.94 in thread length (MPN 319.5-40-3/8X16-B). This component is a revolving ball knob…

SKU 3G-OTH-535078

Also listed as: 31954038X16B · 319 5 40 3 8X16 B · 319-5-40-3-8X16-B

Brand

JW WINCO

Item

Revolving Ball Knob with Threaded Hole

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

319.5-40-3/8X16-B 

Type

Plastic w/ SS Thread 

Thread

3/8"-16 

Thread Lg

0.94 in 

Technical Documents

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JW WINCO Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is a JW WINCO Revolving Ball Knob used for?

A JW WINCO Revolving Ball Knob is used for manual adjustment, clamping, or positioning on machinery and equipment. Its revolving ball design allows comfortable hand operation, making it suitable for industrial controls, jigs, fixtures, and assembly-line workstations where frequent hand tightening or loosening is required.

What are the specifications of the JW WINCO 319.5-40-3/8X16-B?

The JW WINCO 319.5-40-3/8X16-B is a revolving ball knob with a plastic ball and stainless steel threaded insert. It has a 3/8\"-16 thread size and a 0.94 in thread length. The stainless steel thread provides corrosion resistance, while the plastic ball offers a comfortable grip for manual operation.

Where to buy JW WINCO Revolving Ball Knobs worldwide?

3G Electric supplies JW WINCO Revolving Ball Knobs worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 319.5-40-3/8X16-B or other JW WINCO knob configurations.

How to select the right JW WINCO Revolving Ball Knob?

To select the right JW WINCO Revolving Ball Knob, match the thread size (e.g., 3/8\"-16) and thread length (0.94 in) to your application's mating hole. Consider the knob material—plastic with stainless steel thread offers corrosion resistance and a comfortable grip. Verify the MPN 319.5-40-3/8X16-B for exact specifications.

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 revolving ball knobs with threaded hole. 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 →