Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
JW WINCO Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 3/8"-16 Thread, 0.63 in Thread Lg - Knurled Knobs with Threaded Hole
JW WINCOKnurled Knobs with Threaded Hole

JW WINCO Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 3/8"-16 Thread, 0.63 in Thread Lg

The JW WINCO Knurled Screws are knurled hand knobs with a threaded hole, featuring a 2 in diameter, 3/8"-16 thread, and 0.63 in thread length. These steel knobs are black in color (MPN 6TKR4).

SKU 3G-OTH-503336

Brand
JW WINCO
Item
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 3/8"-16 Thread, 0.63 in Thread Lg
Category
Knurled Knobs with Threaded Hole
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

JW WINCO
Manufacturer Part Number
6TKR4
Type
Steel
Dia
2 in
Color
Black
Thread
3/8"-16
Thread Lg
0.63 in
Knurled Hand Knobs
Knurled
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 Knurled Screws are knurled hand knobs with a threaded hole, featuring a 2 in diameter, 3/8"-16 thread, and 0.63 in thread length. These steel knobs are black in color (MPN 6TKR4).

Frequently Asked Questions

What are JW WINCO knurled hand knobs used for?

JW WINCO knurled hand knobs provide manual adjustment and clamping on machinery, fixtures, and industrial equipment. Their knurled steel body offers a secure grip for frequent hand-tightening in assembly, positioning, or locking applications across manufacturing and maintenance environments.

What are the specifications of JW WINCO knurled screws 6TKR4?

The JW WINCO 6TKR4 knurled screw has a 2 in diameter, 3/8\"-16 thread, and 0.63 in thread length. It is made of steel with a black finish. This knurled hand knob features a threaded hole for direct mounting on studs or bolts.

Where to buy JW WINCO knurled hand knobs worldwide?

3G Electric supplies JW WINCO knurled hand knobs worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 6TKR4 or other JW WINCO knurled screws.

How to install JW WINCO knurled screws?

Install JW WINCO knurled screws by threading the 3/8\"-16 stud into the knob's threaded hole. Tighten by hand using the knurled grip; avoid tools that could damage the steel surface. For vibration-prone applications, apply thread-locking compound per manufacturer guidelines.

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 knurled knobs with threaded hole. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from JW WINCO

View all JW WINCO parts →
Knurled Nuts; Knurled Knobs: Knurled, Plastic w/ Brass Thread, M8 Thread, 9 mm Thread Lg, 26 mm Dia (MPN 6128015). Key specifications — Brand: JW WINCO; Color: Black.
JW WINCO
Knurled Nuts; Knurled Knobs: Knurled, Plastic w/ Brass Thread, M8 Thread, 9 mm Thread Lg, 26 mm Dia (MPN 6128015). Key specifications — Brand: JW WINCO; Color: Black.
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 1/4"-20 Thread, 0.5 in Thread Lg, 1 in Dia (MPN 3TKR2). Key specifications — Brand: JW WINCO; Color: Black.
JW WINCO
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 1/4"-20 Thread, 0.5 in Thread Lg, 1 in Dia (MPN 3TKR2). Key specifications — Brand: JW WINCO; Color: Black.
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 1/4"-20 Thread, 0.38 in Thread Lg, 0.75 in Dia (MPN 3TKR1). Key specifications — Brand: JW WINCO; Color: Black.
JW WINCO
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 1/4"-20 Thread, 0.38 in Thread Lg, 0.75 in Dia (MPN 3TKR1). Key specifications — Brand: JW WINCO; Color: Black.
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 5/16"-18 Thread, 0.63 in Thread Lg, 1.5 in Dia (MPN 5TKR3). Key specifications — Brand: JW WINCO; Color: Black.
JW WINCO
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 5/16"-18 Thread, 0.63 in Thread Lg, 1.5 in Dia (MPN 5TKR3). Key specifications — Brand: JW WINCO; Color: Black.
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 1/2"-13 Thread, 0.63 in Thread Lg, 2 in Dia (MPN 8TKR4). Key specifications — Brand: JW WINCO; Color: Black.
JW WINCO
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 1/2"-13 Thread, 0.63 in Thread Lg, 2 in Dia (MPN 8TKR4). Key specifications — Brand: JW WINCO; Color: Black.
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 1/2"-13 Thread, 0.75 in Thread Lg, 2.5 in Dia (MPN 8TKR5). Key specifications — Brand: JW WINCO; Color: Black.
JW WINCO
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 1/2"-13 Thread, 0.75 in Thread Lg, 2.5 in Dia (MPN 8TKR5). Key specifications — Brand: JW WINCO; Color: Black.
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 5/8"-11 Thread, 0.75 in Thread Lg, 2.5 in Dia (MPN 10TKR5). Key specifications — Brand: JW WINCO; Color: Black.
JW WINCO
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 5/8"-11 Thread, 0.75 in Thread Lg, 2.5 in Dia (MPN 10TKR5). Key specifications — Brand: JW WINCO; Color: Black.
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 3/8"-16 Thread, 0.63 in Thread Lg, 1.5 in Dia (MPN 6TKR3). Key specifications — Brand: JW WINCO; Color: Black.
JW WINCO
Knurled Screws; Knurled Hand Knobs: Knurled, Steel, 3/8"-16 Thread, 0.63 in Thread Lg, 1.5 in Dia (MPN 6TKR3). Key specifications — Brand: JW WINCO; Color: Black.