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OTC Locknut Socket: 3/4 in Drive Size, 2 1/4 in Socket Size, 6-Point, Deep - SAE Lock Nut Sockets
OTCSAE Lock Nut Sockets

OTC Locknut Socket: 3/4 in Drive Size, 2 1/4 in Socket Size, 6-Point, Deep

The OTC Locknut Socket (MPN 1977) is a deep, 6-point SAE lock nut socket with a 3/4 in drive size and 2 1/4 in socket size. It features an unfinished surface finish and is not tether capable.

SKU 3G-OTH-329030

Brand
OTC
Item
Locknut Socket: 3/4 in Drive Size, 2 1/4 in Socket Size, 6-Point, Deep
Category
SAE Lock Nut Sockets
Available to Order
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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

OTC
Manufacturer Part Number
1977
Type
6-Point, Deep, Unfinished
Socket Size
2 1/4 in

Technical Documents

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

Product Description

The OTC Locknut Socket (MPN 1977) is a deep, 6-point SAE lock nut socket with a 3/4 in drive size and 2 1/4 in socket size. It features an unfinished surface finish and is not tether capable.

Frequently Asked Questions

What is the OTC Locknut Socket 1977 used for?

The OTC Locknut Socket 1977 is used for tightening or loosening lock nuts on SAE fasteners in heavy equipment and automotive applications. Its deep, 6-point design provides secure engagement on recessed nuts, making it suitable for suspension and drivetrain work where standard sockets cannot reach.

What are the specifications of the OTC Locknut Socket 1977?

The OTC Locknut Socket 1977 has a 3/4 in drive size and a 2 1/4 in socket size. It is a deep, 6-point SAE lock nut socket with an unfinished surface finish. It is not tether capable. The manufacturer part number is 1977, and it is made by OTC.

Where to buy the OTC Locknut Socket 1977 worldwide?

You can source the OTC Locknut Socket 1977 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply this socket to procurement teams and maintenance shops globally.

How to select the correct OTC locknut socket for SAE fasteners?

To select the correct OTC locknut socket, match the drive size to your ratchet or impact wrench (e.g., 3/4 in) and the socket size to the lock nut's hex width (e.g., 2 1/4 in). Choose a deep socket for recessed nuts and a 6-point design for maximum grip. Verify the socket is SAE-rated for your application.

Used in

Common applications for OTC
Automotive repair — OTC bearing splitters (model 1124) for removing bearings from transmission shafts
Heavy equipment maintenance — OTC hydraulic electric pump (model 4044) for powering hydraulic cylinders in press applications
Truck wheel service — OTC Budd Wheel Socket (MPN 1948A) for removing and installing lug nuts on commercial vehicles
Industrial assembly — OTC lock nut sockets (MPN 1939) for tightening SAE lock nuts on machinery
Agricultural equipment repair — OTC puller set (model 4518) for extracting gears and pulleys from tractor components
Construction equipment maintenance — OTC drive socket set (MPN 4542) for servicing metric and SAE fasteners on excavators

OTC Products

3G Electric supplies OTC sae lock nut sockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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OTC Locknut Socket: 3/4 in Drive Size, 2 1/8 in Socket Size, 6-Point, Deep, Unfinished (MPN 1976)
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