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

Williams Interchangable Torque Wrench Fixed Square Drive Heads - Square Ratcheting Torque Wrench Heads
WILLIAMSSquare Ratcheting Torque Wrench Heads

Williams Interchangable Torque Wrench Fixed Square Drive Heads

The WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads are square ratcheting torque wrench heads from the OEM brand WILLIAMS. This model, SKU 3G-OTH-287153 and MPN QJSD8A, features a 1/4 in SAE…

SKU 3G-OTH-287153

Brand
WILLIAMS
Item
Interchangable Torque Wrench Fixed Square Drive Heads
Category
Square Ratcheting Torque Wrench Heads
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.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

WILLIAMS
Manufacturer Part Number
QJSD8A
Type
- SAE - 1/4": 1/4 in Size

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

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

Product Description

The WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads are square ratcheting torque wrench heads from the OEM brand WILLIAMS. This model, SKU 3G-OTH-287153 and MPN QJSD8A, features a 1/4 in SAE size. It is designed for use with interchangeable torque wrench systems.

Frequently Asked Questions

What is the WILLIAMS interchangeable torque wrench fixed square drive head used for?

This WILLIAMS square ratcheting torque wrench head is used with interchangeable torque wrench systems to apply precise torque to fasteners. It is ideal for automotive, industrial, and maintenance applications where a fixed square drive head is required for consistent torque control.

What are the specifications of the WILLIAMS QJSD8A torque wrench head?

The WILLIAMS QJSD8A is a fixed square drive head with a 1/4 in SAE size. It is part of the interchangeable torque wrench system and is manufactured by WILLIAMS. The part number is QJSD8A, and the SKU is 413KT9.

Where to buy WILLIAMS torque wrench heads worldwide?

You can source the WILLIAMS QJSD8A torque wrench head through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time.

How to select the correct interchangeable torque wrench head for SAE fasteners?

Select a head that matches the fastener size and drive type. For SAE fasteners, choose a head with a 1/4 in square drive, like the WILLIAMS QJSD8A. Ensure compatibility with your torque wrench handle. Always follow the manufacturer's torque specifications for accurate results.

Used in

Common applications for WILLIAMS
Automotive assembly — WILLIAMS interchangeable open-end torque wrench heads for precise fastener tightening on engine components
Heavy equipment maintenance — WILLIAMS box-end leverage wrenches for breaking loose large SAE fasteners on machinery
Industrial manufacturing — WILLIAMS single-setting torque wrenches for repetitive bolting on production lines
Aerospace repair — WILLIAMS hex-key torque wrench heads for small fastener torque applications in confined spaces
General plant maintenance — WILLIAMS Y-shank open-end heads for metric fasteners on pumps and compressors

WILLIAMS Products

3G Electric supplies WILLIAMS square ratcheting torque wrench heads. 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
WILLIAMS Williams Interchangable Torque Wrench Open End Heads - SAE - J-Shank - 1": 1 in Drive Size (MPN QJO32A)
WILLIAMS
WILLIAMS Williams Interchangable Torque Wrench Open End Heads - SAE - J-Shank - 1": 1 in Drive Size (MPN QJO32A)
WILLIAMS Williams Interchangable Torque Wrench Open End Heads - SAE - J-Shank - 1-1/16" (MPN QJO34A)
WILLIAMS
WILLIAMS Williams Interchangable Torque Wrench Open End Heads - SAE - J-Shank - 1-1/16" (MPN QJO34A)
WILLIAMS Williams Interchangable Torque Wrench Open End Heads - SAE - J-Shank - 1-3/8" (MPN QJO44A)
WILLIAMS
WILLIAMS Williams Interchangable Torque Wrench Open End Heads - SAE - J-Shank - 1-3/8" (MPN QJO44A)
WILLIAMS Williams Interchangable Torque Wrench Open End Heads - SAE - X-Shank - 1-1/4" (MPN QXO40A)
WILLIAMS
WILLIAMS Williams Interchangable Torque Wrench Open End Heads - SAE - X-Shank - 1-1/4" (MPN QXO40A)
WILLIAMS Williams Interchangable Torque Wrench Open End Heads - SAE - Y-Shank - 3/4": 3/4 in Size (MPN QYO24A)
WILLIAMS
WILLIAMS Williams Interchangable Torque Wrench Open End Heads - SAE - Y-Shank - 3/4": 3/4 in Size (MPN QYO24A)
WILLIAMS Williams Interchangable Torque Wrench Open End Heads - SAE - Y-Shank - 1": 1 in Drive Size (MPN QYO32A)
WILLIAMS
WILLIAMS Williams Interchangable Torque Wrench Open End Heads - SAE - Y-Shank - 1": 1 in Drive Size (MPN QYO32A)

More from WILLIAMS

View all WILLIAMS parts
WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads - SAE - 1/2": 1/2 in Size (MPN QYSD16A)
WILLIAMS
WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads - SAE - 1/2": 1/2 in Size (MPN QYSD16A)
WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads - SAE - 3/8": 3/8 in Size (MPN QYSD12A)
WILLIAMS
WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads - SAE - 3/8": 3/8 in Size (MPN QYSD12A)
WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads - SAE - 3/4": 3/4 in Size (MPN QZSD24A)
WILLIAMS
WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads - SAE - 3/4": 3/4 in Size (MPN QZSD24A)
WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads - SAE - 3/8": 3/8 in Size (MPN QJSD12A)
WILLIAMS
WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads - SAE - 3/8": 3/8 in Size (MPN QJSD12A)
WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads - SAE - 3/4": 3/4 in Size (MPN QZSD24ADP)
WILLIAMS
WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads - SAE - 3/4": 3/4 in Size (MPN QZSD24ADP)
WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads - SAE - 1/2": 1/2 in Size (MPN QJSD16A)
WILLIAMS
WILLIAMS Williams Interchangable Torque Wrench Fixed Square Drive Heads - SAE - 1/2": 1/2 in Size (MPN QJSD16A)