SATA ST12916SC 3/8" Drive Metric Spark Plug Socket 21mm
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Delivery by Friday, 31 Jul
- Single hex (6pt) fastener end design
- Off-corner loading design reduces fastener rounding
- Large markings offer easy size identification
- Bright, full polish chrome finish easily wipes clean and resists corrosion
Key Features
Delivery by Friday, 31 Jul
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Features & Benefits
Perfect Fit
Designed specifically for 21mm spark plugs, ensuring a snug fit that minimizes the risk of damage during installation and removal.
Durable Construction
Made from high-quality chrome vanadium steel, providing exceptional strength and durability for long-lasting performance.
Deep Socket Design
Allows for easy access to spark plugs in tight engine spaces, saving time and effort when working on vehicles.
Corrosion Resistance
Chrome-plated finish resists rust and corrosion, maintaining tool appearance and functionality in challenging conditions.
Convenient Compatibility
Works with standard 3/8" drive ratchets, enhancing versatility for various automotive tasks.
Lightweight Design
Easy to handle and maneuver, reducing fatigue during extended use.
Enhanced Grip
Textured surface ensures a firm hold, preventing slippage during use for improved safety.
Versatile Application
Ideal for use in a variety of automotive maintenance tasks beyond just spark plug installation.
Easy Identification
Marked with clear size indicators for quick identification in toolboxes.
Cost-Effective Solution
Provides reliable performance at an affordable price, making it a valuable addition to any mechanic's toolkit.
Key Specifications
Custom Stock Status
In Stock
Weight
0.16 kg
Brands
Sata
Color
Silver
Size
21mm
Quantity Unit
PCS
Model No
ST12916SC
Item Type
Metric Socket
Material
Chrome Vanadium Steel
Number of Pieces
1
Country Of Origin
China
Usage
Designed for removing and installing 16mm metric spark plugs in automotive and motorcycle engines
Distributor
Exclusive Distributor
Products Ranking
Top 25 in Socket & Wrench Sets
Product Attachments
Download technical documentation, manuals, and certification documents
ST12916SC_Data_Sheet
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1 PDF
Product Attachments
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ST12916SC_Data_Sheet
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Frequently Asked Questions
What is the SATA ST12916SC 3/8" Drive Metric Spark Plug Socket 21mm used for?
This socket is a deep, 21mm spark plug socket designed to fit 21mm spark plugs. It’s intended for use with a standard 3/8" drive ratchet to install or remove spark plugs in automotive engines, helping you reach plugs in tight spaces safely.
What does the off-corner loading design do, and why is it beneficial?
Off-corner loading (6-point) distributes torque across the corners rather than a single flat edge. This reduces the likelihood of rounding the fastener and provides a more secure grip during turning, especially on slightly worn or stubborn plugs.
What are the key specifications of this socket?
Key specs: 21mm size for spark plugs, 3/8" drive compatibility, deep socket design for hard-to-reach plugs, chrome vanadium steel for strength, chrome-plated finish for corrosion resistance, large markings for quick size identification, and a textured grip for easier handling.
Is this socket compatible with 3/8" drive ratchets?
Yes. It is specifically designed to work with standard 3/8" drive ratchets, providing versatile use across many automotive tasks.
How does the deep socket design help in tight engine spaces?
The deep socket reaches spark plugs that are recessed or surrounded by engine components, allowing you to engage the plug without contorting your hand or using additional extensions.
How should I use this socket to install or remove a spark plug?
Steps: 1) Ensure the engine is cool. 2) Clean the area around the plug. 3) Place the socket squarely on the plug and attach a ratchet. 4) Turn gently to seat or loosen, avoiding cross-threading. 5) Remove and re-tighten to the manufacturer’s torque spec if needed.
What other tasks can this 21mm, 3/8" drive socket be used for besides spark plugs?
While optimized for 21mm spark plugs, the socket can also fit other 21mm fasteners encountered in automotive maintenance, provided the drive size and depth are appropriate for the job.
What safety considerations should I follow when using this socket?
Safety tips: wear gloves and eye protection, ensure the engine is cool before starting, use the correct size to avoid slippage, and avoid applying excessive force that could strip the plug or damage surrounding components.
What maintenance or care does this socket require to maximize longevity?
After use, wipe the socket to remove oil or debris, dry it thoroughly, and store it in a dry toolbox. The chrome-plated finish helps resist rust, but keeping it clean and dry will extend its life.
Is this tool a good value for money given its features and build?
Yes. The combination of chrome vanadium construction, a durable chrome-plated finish, deep reach, and off-corner 6-point design provides reliable performance at an affordable price, making it a cost-effective addition to a mechanic’s toolkit.
What should I know about identifying and storing the size on this socket?
The socket has large size markings for quick identification, so you can easily locate the 21mm socket in your toolbox and grab the right tool without hesitation.
What are some alternative spark plug sockets on Fepy with a 3/8" drive for similar sizes?
If you’re exploring options on Fepy, you can consider these alternatives (all available on Fepy): - 18mm spark plug socket, 3/8" drive: https://fepy.com/product/sata-spark-plug-socket-18mm-3-8-drive - 16mm spark plug socket, 3/8" drive: https://fepy.com/product/sata-spark-plug-socket-16mm-3-8-drive - 14mm spark plug socket, 3/8" drive: https://fepy.com/product/sata-spark-plug-socket-14mm-3-8-drive
Frequently Asked Questions
This socket is a deep, 21mm spark plug socket designed to fit 21mm spark plugs. It’s intended for use with a standard 3/8" drive ratchet to install or remove spark plugs in automotive engines, helping you reach plugs in tight spaces safely.
Off-corner loading (6-point) distributes torque across the corners rather than a single flat edge. This reduces the likelihood of rounding the fastener and provides a more secure grip during turning, especially on slightly worn or stubborn plugs.
Key specs: 21mm size for spark plugs, 3/8" drive compatibility, deep socket design for hard-to-reach plugs, chrome vanadium steel for strength, chrome-plated finish for corrosion resistance, large markings for quick size identification, and a textured grip for easier handling.
Yes. It is specifically designed to work with standard 3/8" drive ratchets, providing versatile use across many automotive tasks.
The deep socket reaches spark plugs that are recessed or surrounded by engine components, allowing you to engage the plug without contorting your hand or using additional extensions.
Steps: 1) Ensure the engine is cool. 2) Clean the area around the plug. 3) Place the socket squarely on the plug and attach a ratchet. 4) Turn gently to seat or loosen, avoiding cross-threading. 5) Remove and re-tighten to the manufacturer’s torque spec if needed.
While optimized for 21mm spark plugs, the socket can also fit other 21mm fasteners encountered in automotive maintenance, provided the drive size and depth are appropriate for the job.
Safety tips: wear gloves and eye protection, ensure the engine is cool before starting, use the correct size to avoid slippage, and avoid applying excessive force that could strip the plug or damage surrounding components.
After use, wipe the socket to remove oil or debris, dry it thoroughly, and store it in a dry toolbox. The chrome-plated finish helps resist rust, but keeping it clean and dry will extend its life.
Yes. The combination of chrome vanadium construction, a durable chrome-plated finish, deep reach, and off-corner 6-point design provides reliable performance at an affordable price, making it a cost-effective addition to a mechanic’s toolkit.
The socket has large size markings for quick identification, so you can easily locate the 21mm socket in your toolbox and grab the right tool without hesitation.
If you’re exploring options on Fepy, you can consider these alternatives (all available on Fepy): - 18mm spark plug socket, 3/8" drive: https://fepy.com/product/sata-spark-plug-socket-18mm-3-8-drive - 16mm spark plug socket, 3/8" drive: https://fepy.com/product/sata-spark-plug-socket-16mm-3-8-drive - 14mm spark plug socket, 3/8" drive: https://fepy.com/product/sata-spark-plug-socket-14mm-3-8-drive
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Manufacturer Warranty
Official warranty coverage from brand manufacturers
99% Claims resolved
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Choose Cash or Card as your payment
AED 100+ Min. order value
Secure Payment
100% secure payment processing
256-bit SSL encryption
Free Delivery
On all orders above AED 200 across UAE
Same Day In Abu Dhabi & Dubai
100% Genuine
Authentic products guaranteed
Authorized Distributor
Free Returns
7-day easy return policy
No questions Asked policy