JW WINCO7-Arm Knobs with Threaded Stud

JW WINCO Hand Knobs; Star Knobs: 7 Point, Plastic w/ Steel Thread, 5/16"-18 Thread

The JW WINCO Hand Knob is a 7-arm knob with a threaded stud, featuring a 1.57-inch diameter plastic body with a steel thread insert. It has a 5/16"-18 thread size and a 7-point star design (MPN 6336.4-ST-40-5/16X18-23).

SKU 3G-OTH-532318

Brand

JW WINCO

Item

Hand Knobs; Star Knobs: 7 Point, Plastic w/ Steel Thread, 5/16"-18 Thread

Technical Specifications

JW WINCO

Manufacturer Part Number

6336.4-ST-40-5/16X18-23 

Type

Plastic w/ Steel Thread 

Dia

1.57 in 

Thread

5/16"-18 

Star Knobs

7 Point 

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 a JW WINCO 7-arm hand knob used for?

A JW WINCO 7-arm hand knob provides a secure, ergonomic grip for manual adjustment, clamping, or positioning on machinery, jigs, and fixtures. Its 7-point star design and 5/16"-18 threaded steel insert allow quick hand-tightening without tools in industrial assembly and maintenance applications.

What are the specifications of the JW WINCO 6336.4-ST-40-5/16X18-23 hand knob?

The JW WINCO hand knob (MPN 6336.4-ST-40-5/16X18-23) has a 1.57-inch diameter plastic body with a steel thread insert. It features a 7-point star design and a 5/16"-18 thread size. The knob type is a 7-arm knob with a threaded stud for secure fastening.

Where to buy JW WINCO hand knobs worldwide?

3G Electric supplies JW WINCO hand knobs worldwide, handling full logistics and customs clearance for international orders. As a global industrial sourcing partner, we provide genuine JW WINCO parts like the 6336.4-ST-40-5/16X18-23 to customers across 14 industrial departments, including machining and material handling.

How to install a JW WINCO threaded stud hand knob?

To install a JW WINCO hand knob with a threaded stud, align the 5/16"-18 stud with the mating threaded hole or nut. Hand-tighten the 7-arm knob clockwise until snug. Avoid over-torquing to prevent damage to the plastic body. For vibration-prone applications, use a thread-locking compound on the steel insert.

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 7-arm knobs with threaded stud. 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 →