JW WINCO4-Arm Knobs with Threaded Hole

JW WINCO Plastic Hand Knob w/ Steel Insert: Plastic w/ Steel Thread, 5/16"-18 Thread

The JW WINCO Plastic Hand Knob w/ Steel Insert is a 4-arm knob with a threaded hole, featuring a 1.57 in diameter and a 5/16"-18 thread. This component combines a plastic body with a steel thread insert for durable…

SKU 3G-OTH-518010

Brand

JW WINCO

Item

Plastic Hand Knob w/ Steel Insert: Plastic w/ Steel Thread, 5/16"-18 Thread

Technical Specifications

JW WINCO

Manufacturer Part Number

6335-KT-40-5/16-18-K 

Dia

1.57 in 

Thread

5/16"-18 

View Full Spec Sheet

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 Plastic Hand Knob used for?

The JW WINCO Plastic Hand Knob with steel insert is used for manual adjustment and clamping in industrial machinery, jigs, and fixtures. Its 4-arm design provides a secure grip for frequent hand-tightening operations, while the steel thread insert ensures durable engagement with 5/16"-18 threaded components.

What are the specifications of the JW WINCO 6335-KT-40-5/16-18-K knob?

This JW WINCO knob has a 1.57 in diameter, a 5/16"-18 thread, and a plastic body with a steel thread insert. It is a 4-arm hand knob with a threaded hole, part number 6335-KT-40-5/16-18-K. The steel insert provides wear resistance for repeated manual tightening in industrial settings.

Where to buy JW WINCO Plastic Hand Knobs worldwide?

3G Electric supplies the JW WINCO Plastic Hand Knob with steel insert worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on the 6335-KT-40-5/16-18-K knob for your application.

How to select the right JW WINCO hand knob for an application?

To select the correct JW WINCO hand knob, match the thread size (5/16"-18) and diameter (1.57 in) to your equipment's threaded stud or hole. Consider the required grip torque and environmental exposure—plastic with steel insert suits moderate-duty manual adjustment where corrosion resistance and durability are needed.

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 4-arm 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 →