What size socket is a 2019 Chevy Blazer lug nut?
The typical lug nut size for a 2019 Chevy Blazer is a 21 mm hex socket (roughly 13/16 inch across flats). This article explains the standard size, notes possible variations, and shows how to verify the exact tool for your vehicle.
Understanding the standard size
The Blazer, like many GM 5-lug SUVs, commonly uses lug nuts with a hex across flats of 21 mm. This corresponds to about 13/16 inch in SAE measurements. However, wheel design, aftermarket wheels, or locking lug nuts can change the required socket size, so it’s wise to confirm before attempting to remove a lug nut.
Before listing common sizes, note that wheel design, aftermarket lug nuts, or accessories like lock lug nuts can change the required socket size. Always confirm by checking your manual or verifying on the wheel itself.
- 21 mm hex (across flats)
- Equivalent SAE size: approximately 13/16 inch
- Typical reinstall torque: around 140 ft-lbs (190 N·m)
Common hex size across flats for factory wheels is 21 mm (approx. 13/16 inch).
In brief, 21 mm is the typical size you’ll need for most 2019 Blazer factory wheels. If your wheels are aftermarket or use locking lug nuts, the size may differ. Always verify with documentation or by fitting the correct socket to avoid damage.
How to confirm the exact lug nut size for your 2019 Blazer
To be certain you’re using the correct socket, follow these steps:
- Check the owner's manual or dealership service sheet for wheel lug nut specifications.
- Inspect the lug nuts and wheel for any markings indicating the hex size.
- Measure across flats of a lug nut with a caliper or ruler to identify the correct size.
- Try the most common sizes first (21 mm / 13/16 in). If it doesn’t fit, stop and try slightly smaller or larger sizes to avoid rounding the nut.
- If you have locking lug nuts or aftermarket wheels, locate the key or consult the manufacturer’s instructions.
Verifying the exact size before removal helps prevent damage to lug nuts, wheels, and studs.
Locking lug nuts and aftermarket wheels
Some trims or aftermarket setups use locking lug nuts or non-standard wheel hardware. In these cases, a special key or adapter may be required, and the standard 21 mm socket may not fit. Always locate the provided key or contact the dealer if you’re unsure.
Practical tips for maintenance
When removing lug nuts, use a breaker bar if they’re tight, and always torque to the manufacturer specification when reinstalling. Clean the studs and lug nuts, avoid cross-threading, and re-torque after driving a short distance if your manual calls for it.
Note: Variations can occur with different trims, wheels, or aftermarket components. If in doubt, consult a professional or the dealer for the precise tool size for your particular vehicle.
Summary
The standard socket size for a 2019 Chevy Blazer lug nut is typically 21 mm (about 13/16 inch across flats). This applies to most factory wheels, but variations can occur with aftermarket wheels or locking lug nuts. Always verify with the vehicle’s manual or by testing the socket to ensure you’re using the correct size and to avoid damaging the lug nuts or studs.
What size are Chevy Blazer lug nuts?
Dorman – Wheel Lug Nut: 7/16-20 Thread, Conical 60, Acorn, 1.375" Length, Chrome, 4 Pack (Part No. 711-101)
Will a 22mm socket fit 7/8?
A: 22mm = 0.866", which essentialy is a 7/8" socket. A 7/8" socket will work on a 22mm lug nut, but it can feel a little loose. The other way around, a 22mm can work on a 7/8" lug nut, but it can be really snug, which is not bad.
What size are the lug nuts on a 2019 Chevy Blazer?
Notes: Nut. 14 mm x 1.50 thread size, 13/16" and 7/8" hex. Refer to your owner's manual or wheel manufacturer's guide for correct thread size, seat style, length, hex and torque specifications.
What size socket fits Chevy lug nuts?
The most common Chevy lug nut socket size is 22mm (or 7/8"), especially for models like the Silverado 1500, Suburban, Tahoe, and Colorado. However, not all Chevy vehicles use the same size, as some may use 13/16", 1/2" (12.7mm), or other common sizes depending on the model and year.
Common socket sizes
- 22mm (7/8"): This is the most frequent size for many light-duty trucks and SUVs, including the Silverado 1500 and Suburban.
- 13/16": This is an equivalent size to 22mm and is often listed as the size to use.
- Other sizes: Depending on the model and year, some Chevy vehicles may use other sizes, such as 1/2" or M12 x 1.25 for smaller sedans or older models.
How to confirm the correct size
- Check your owner's manual: The manual will specify the correct lug nut socket size for your specific vehicle.
- Use a socket set with a 1/2-inch drive: This provides enough torque for most lug nuts, and a 1/2-inch drive socket allows you to tighten them with confidence.
- Try a 13/16" socket: This is an equivalent size to 22mm and is often listed as the size to use.
- Use a socket that can handle the torque: Use a high-quality socket that is designed to withstand the forces of tightening lug nuts to avoid damaging the nut or the socket.
- Avoid using cheap chrome sockets: Cheap sockets can crack or shatter under the stress of properly tightening lug nuts.
