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

JW WINCO Workholding Stop Bolt: M12 Thread Size - Hex-Head Stop Bolts with Retaining Magnet & Lock Nut
JW WINCOHex-Head Stop Bolts with Retaining Magnet & Lock Nut

JW WINCO Workholding Stop Bolt: M12 Thread Size

The JW WINCO Workholding Stop Bolt (M12 Thread Size) is a hex-head stop bolt with a retaining magnet and lock nut, constructed from zinc-plated steel bolt and nut (MPN 251.6-M12-60-ND). This product is designed for…

SKU 3G-OTH-528552

Brand
JW WINCO
Item
Workholding Stop Bolt: M12 Thread Size
Category
Hex-Head Stop Bolts with Retaining Magnet & Lock Nut
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
251.6-M12-60-ND
Type
Zinc Plated Steel Bolt – Zinc Plated Steel Nut
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 Workholding Stop Bolt (M12 Thread Size) is a hex-head stop bolt with a retaining magnet and lock nut, constructed from zinc-plated steel bolt and nut (MPN 251.6-M12-60-ND). This product is designed for precise workholding applications, combining a magnetic retention feature with a secure lock nut for reliable positioning.

Frequently Asked Questions

What is JW WINCO Workholding Stop Bolt used for?

The JW WINCO Workholding Stop Bolt (M12) is used for precise positioning and clamping in machining and fixturing applications. Its hex head, retaining magnet, and lock nut secure workpieces reliably during milling, drilling, or grinding operations.

What are the specifications of JW WINCO Workholding Stop Bolt?

The JW WINCO Workholding Stop Bolt has an M12 thread size, zinc-plated steel bolt and nut construction, and includes a retaining magnet and lock nut. The manufacturer part number is 251.6-M12-60-ND. It is designed for durable, corrosion-resistant workholding.

Where to buy JW WINCO Workholding Stop Bolt worldwide?

3G Electric supplies the JW WINCO Workholding Stop Bolt (M12) to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this precision workholding component.

How to install JW WINCO Workholding Stop Bolt?

To install the JW WINCO Stop Bolt, thread the M12 bolt into a tapped hole in your fixture or machine table. Tighten the lock nut to secure position. The retaining magnet holds ferrous workpieces in place during setup. Always follow standard workholding safety practices.

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 hex-head stop bolts with retaining magnet & lock nut. 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
JW WINCO Workholding Stop Bolt: M6 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut, 25 N (MPN 251.6-M6-30-ND). Key specifications — Brand: JW WINCO.
JW WINCO
JW WINCO Workholding Stop Bolt: M6 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut, 25 N (MPN 251.6-M6-30-ND). Key specifications — Brand: JW WINCO.
JW WINCO Workholding Stop Bolt: M8 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut, 50 N (MPN 251.6-M8-40-ND). Key specifications — Brand: JW WINCO.
JW WINCO
JW WINCO Workholding Stop Bolt: M8 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut, 50 N (MPN 251.6-M8-40-ND). Key specifications — Brand: JW WINCO.
JW WINCO Workholding Stop Bolt: M10 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut (MPN 251.6-M10-30-ND). Key specifications — Brand: JW WINCO.
JW WINCO
JW WINCO Workholding Stop Bolt: M10 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut (MPN 251.6-M10-30-ND). Key specifications — Brand: JW WINCO.
JW WINCO Workholding Stop Bolt: M12 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut (MPN 251.6-M12-50-ND). Key specifications — Brand: JW WINCO.
JW WINCO
JW WINCO Workholding Stop Bolt: M12 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut (MPN 251.6-M12-50-ND). Key specifications — Brand: JW WINCO.
JW WINCO Workholding Stop Bolt: M6 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut, 25 N (MPN 251.6-M6-25-ND). Key specifications — Brand: JW WINCO.
JW WINCO
JW WINCO Workholding Stop Bolt: M6 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut, 25 N (MPN 251.6-M6-25-ND). Key specifications — Brand: JW WINCO.
JW WINCO Workholding Stop Bolt: M8 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut, 50 N (MPN 251.6-M8-25-ND). Key specifications — Brand: JW WINCO.
JW WINCO
JW WINCO Workholding Stop Bolt: M8 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut, 50 N (MPN 251.6-M8-25-ND). Key specifications — Brand: JW WINCO.
JW WINCO Workholding Stop Bolt: M16 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut (MPN 251.6-M16-40-ND). Key specifications — Brand: JW WINCO.
JW WINCO
JW WINCO Workholding Stop Bolt: M16 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut (MPN 251.6-M16-40-ND). Key specifications — Brand: JW WINCO.
JW WINCO Workholding Stop Bolt: M12 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut (MPN 251.6-M12-25-ND). Key specifications — Brand: JW WINCO.
JW WINCO
JW WINCO Workholding Stop Bolt: M12 Thread Size, Zinc Plated Steel Bolt – Zinc Plated Steel Nut (MPN 251.6-M12-25-ND). Key specifications — Brand: JW WINCO.