JW WINCO7-Arm Knobs with Threaded Hole

JW WINCO Hand Knobs; Star Knobs: 7 Point, Plastic w/ Steel Thread, 1/4"-20 Thread

The JW WINCO Hand Knob is a 7-arm star knob with a threaded hole, featuring a plastic body with a steel thread insert. It has a 1/4"-20 thread size and a 0.47-inch thread length (MPN 3TX31/K).

SKU 3G-OTH-524906

Brand

JW WINCO

Item

Hand Knobs; Star Knobs: 7 Point, Plastic w/ Steel Thread, 1/4"-20 Thread

Technical Specifications

JW WINCO

Manufacturer Part Number

3TX31/K 

Type

Plastic w/ Steel Thread 

Thread

1/4"-20 

Thread Lg

0.47 in 

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

The JW WINCO Hand Knob is a 7-arm star knob with a threaded hole, featuring a plastic body with a steel thread insert. It has a 1/4"-20 thread size and a 0.47-inch thread length (MPN 3TX31/K).

Frequently Asked Questions

What is a JW WINCO 7-arm star knob used for?

A JW WINCO 7-arm star knob provides manual grip for adjusting, clamping, or positioning machinery and equipment. Its plastic body with steel thread insert resists corrosion while the 1/4"-20 thread allows secure fastening on industrial fixtures, jigs, and control panels.

What are the specifications of the JW WINCO 3TX31/K hand knob?

The JW WINCO 3TX31/K is a 7-point star knob with a plastic body and steel thread insert. It has a 1/4"-20 thread size and a 0.47 in thread length. The threaded hole design enables direct mounting on studs or bolts for manual tightening applications.

Where to buy JW WINCO hand knobs worldwide?

3G Electric supplies JW WINCO hand knobs worldwide, handling full logistics and customs clearance. As a global industrial sourcing partner, we provide genuine JW WINCO 7-arm star knobs like the 3TX31/K with 1/4"-20 thread and 0.47 in thread length to any international destination.

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

Select a JW WINCO star knob by matching thread size and length to your stud or bolt — the 3TX31/K uses 1/4"-20 thread with 0.47 in thread length. Consider the 7-arm design for ergonomic grip and the plastic/steel construction for environments requiring corrosion resistance and moderate torque.

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 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 →