EXW Singapore — collect or forward from our Singapore office.

3G Electric
JW WINCO Knurled Hand Knob with Threaded Stud - Knurled Knobs with Threaded Stud
JW WINCOKnurled Knobs with Threaded Stud

JW WINCO Knurled Hand Knob with Threaded Stud

The JW WINCO Knurled Screws are knurled hand knobs with threaded stud, featuring a black plastic body with steel M8 thread and a 25 mm thread length (MPN 421-M8-25).

SKU 3G-OTH-514736

Also listed as: 421M825 · 421 M8 25

Brand
JW WINCO
Item
Knurled Hand Knob with Threaded Stud
Part Number
421-M8-25
Category
Knurled Knobs with Threaded Stud
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

JW WINCO
Manufacturer Part Number
421-M8-25
Type
Plastic w/ Steel Thread, M8 Thread
Color
Black
Thread Lg
25 mm
Knurled Hand Knobs
Knurled

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 threaded stud, featuring a black plastic body with steel M8 thread and a 25 mm thread length (MPN 421-M8-25).

Frequently Asked Questions

What are JW WINCO knurled screws used for?

JW WINCO knurled screws are hand-operated fasteners for tool-less adjustment and clamping in industrial machinery, jigs, and fixtures. The knurled plastic body provides a secure grip, while the steel M8 threaded stud enables firm attachment. 3G Electric supplies these across 14 industrial departments worldwide.

What are the specifications of JW WINCO 421-M8-25 knurled hand knobs?

The JW WINCO 421-M8-25 knurled hand knob has a black plastic body with a steel M8 thread and a 25 mm thread length. It is a knurled, threaded-stud type knob. 3G Electric sources genuine JW WINCO parts alongside brands like Schneider, ABB, and SKF for global delivery.

Where to buy JW WINCO knurled screws in worldwide?

3G Electric supplies JW WINCO knurled screws worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we interpret your demand and deliver genuine parts like the 421-M8-25 to any location. Contact us for availability and lead time.

How to install JW WINCO knurled hand knobs?

Install JW WINCO knurled hand knobs by threading the M8 stud into a matching tapped hole or nut. Tighten by hand using the knurled grip; avoid tools to prevent over-torquing the plastic body. 3G Electric provides genuine parts and application support for industrial fastening needs.

Used in

Common applications for JW WINCO
Hydraulic power units — JW Winco filter breather vents (e.g., SKU 912HX4) with 3/4" SAE thread and 10-micron filtration for air exchange on reservoirs.
Gearbox and compressor mounting — JW Winco cylindrical vibration-isolating mounts (e.g., SKU 802C02) with 55A durometer natural rubber to reduce transmitted vibration.
Industrial machinery adjustment — JW Winco knurled knobs (e.g., SKU 822Y21) with M6 steel thread insert for manual clamping and positioning on jigs and fixtures.
Fluid drainage in reservoirs — JW Winco fluid drain valves (e.g., SKU 912HP9) with M16x1.5 mounting thread and tethered cap for controlled draining of hydraulic tanks.
Corrosive environment fastening — JW Winco stainless steel wing knobs (e.g., SKU 822W63) with 1/4"-20 threaded hole for frequent manual adjustment in wet or chemical-exposed areas.
Metric and inch thread applications — JW Winco knurled knobs (e.g., SKU 822Y18) with 3/8"-16 thread for equipment requiring inch-based manual fastening.
Not sure this is the right part? Photo-identify it→

JW WINCO Products

3G Electric supplies JW WINCO knurled knobs with threaded stud. 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 →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first