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WILLIAMS 401SPW Preset Torque Screwdriver, 1/4 in Tip, 4-40 in-lb, Click-Type - Preset Torque Screwdrivers
WILLIAMSPreset Torque Screwdrivers

WILLIAMS 401SPW Preset Torque Screwdriver, 1/4 in Tip, 4-40 in-lb, Click-Type

The WILLIAMS 401SPW is a preset torque screwdriver with a 1/4 in tip size, classified as a click-type torque screwdriver. It offers a minimum torque of 4 lb-in and a maximum torque of 40 in-lb. This WILLIAMS-branded…

SKU 3G-OTH-313383

Also listed as: 401 SPW · 401-SPW

Brand
WILLIAMS
Item
401SPW Preset Torque Screwdriver, 1/4 in Tip, 4-40 in-lb, Click-Type
Part Number
401SPW
Category
Preset Torque Screwdrivers
Available to Order
Also known as:401SPWWILLIAMS
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Technical Specifications

WILLIAMS
Manufacturer Part Number
401SPW
Type
4 lb-in Min Torque, 40 in-lb Max Torque, Click-Type

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WILLIAMS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WILLIAMS 401SPW is a preset torque screwdriver with a 1/4 in tip size, classified as a click-type torque screwdriver. It offers a minimum torque of 4 lb-in and a maximum torque of 40 in-lb. This WILLIAMS-branded tool is designed for precise torque application in industrial settings.

Frequently Asked Questions

What is the WILLIAMS 401SPW torque screwdriver used for?

The WILLIAMS 401SPW is a click-type preset torque screwdriver used for precise torque application in industrial assembly, maintenance, and quality control. It ensures fasteners are tightened to exact specifications, preventing under- or over-torquing in applications like electronics, machinery, and automotive work.

What are the specifications of the WILLIAMS 401SPW torque screwdriver?

The WILLIAMS 401SPW has a 1/4 in tip size, a minimum torque of 4 lb-in, and a maximum torque of 40 in-lb. It is a click-type preset torque screwdriver, meaning it audibly signals when the set torque is reached. The manufacturer part number is 401SPW.

Where to buy the WILLIAMS 401SPW torque screwdriver worldwide?

3G Electric supplies the WILLIAMS 401SPW torque screwdriver to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this precision tool.

How do you select the right preset torque screwdriver for an application?

Select a preset torque screwdriver like the WILLIAMS 401SPW by matching its torque range to your fastener requirements. For the 401SPW, ensure your target torque falls between 4 lb-in and 40 in-lb. Also verify tip size compatibility—here, 1/4 in—and choose click-type for audible confirmation of torque achievement.

Used in

Common applications for WILLIAMS
Automotive assembly — Williams square ratcheting torque wrench heads (QYSD16A, QZSD24A) for tightening engine and chassis fasteners to specified torque.
Industrial maintenance — Williams interchangeable torque wrench system with 1/2 in and 3/4 in drive heads for pump and compressor flange bolts.
Aerospace fastening — Williams preset torque screwdrivers (61SPW) for avionics and instrument panel assembly where low torque is critical.
Electronics manufacturing — Williams 61SPW preset torque screwdriver for securing small screws in circuit board enclosures and connectors.
Heavy equipment repair — Williams 3/4 in drive ratcheting torque wrench heads (QZSD24ADP) for track and undercarriage bolts on construction machinery.
Field service kits — Williams 3/8 in drive torque wrench heads (QYSD12A, QJSD12A) paired with a single handle for on-site maintenance of industrial valves and fittings.
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WILLIAMS Products

3G Electric supplies WILLIAMS preset torque screwdrivers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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