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9/16"-18 Lug Nuts

9/16"-18 Lug Nuts

All of our 9/16"-18 lug nuts: 9/16 inch thread diameter with 18 threads per inch, including dualie nuts with washers for dually wheels. Stocked in acorn, bulge acorn, spline, spike and mag styles.

This size is commonly found on older Dodge Ram heavy-duty trucks, Ford F-250 and F-350 pickups from roughly 1988 to 1998 (before the Super Duty era) and many trailer axles, especially dually applications. Always verify your thread size before ordering. If you are not certain of your size, our wheel fitment guide explains how to identify thread sizes step by step.

Common questions

What does 9/16"-18 mean? The stud is 9/16 inch in diameter with 18 threads per inch.

What is a dualie lug nut? A nut with a built-in or separate washer that clamps dual rear wheels evenly. If your truck runs duals, use dualie-style nuts where the wheel design calls for them.

How tight should 9/16" nuts be? Heavy-duty applications often call for 120 lb-ft or more; check your manual and our torque chart.

Related: 14x2.0 lug nuts, 1/2"-20 lug nuts left hand thread lug nuts and all wheel lug nuts. Recommended torque for each size is listed on our torque reference chart.

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Black OEM Ford 9/16" Lug Nuts

$2.49 - $2.49
$2.49
$2.49
$2.49 - $2.49
$2.49
In stock

EZAccessory's special Ford OEM style 9/16" lug nuts with built-in washers are designed to fit earlier Ford trucks.Specifications+ Washers are buil...

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$2.49 - $2.49
$2.49
$2.49
$2.49 - $2.49
$2.49
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Open End Bulge Acorn Lug Nut 9/16"-18

$1.19
$1.19 - $1.19
$1.19
$0.89
$0.89 - $0.89
$0.89

Open-end bulge acorn style 9/16"-18 threads nickel plated lug nuts. Please refer to the following drawing for exact specification and size. Visit o...

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$1.19
$1.19 - $1.19
$1.19
$0.89
$0.89 - $0.89
$0.89
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GM 9/16" External Thread Lug Nut

$2.19
$2.19 - $2.19
$2.19
$1.69
$1.69 - $1.69
$1.69

Special GM OEM style 9/16" lug nuts with external threads. These lug nuts allow newer 90-99 Chevy/GMC wheels to put on 73-87 Chevy and GMC trucks. ...

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$2.19
$2.19 - $2.19
$2.19
$1.69
$1.69 - $1.69
$1.69
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Dualie Mag Lug Nuts 9/16" with Washer 0.57" Shank

$3.99
$3.99 - $3.99
$3.99
$3.29
$3.29 - $3.29
$3.29
In stock

Dualie Mag 9/16" with Washer 0.57" Shank lug nut.  1" hex. 2.02" in height.  Chrome finish. Please refer to the following drawing for exact specifi...

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$3.99
$3.99 - $3.99
$3.99
$3.29
$3.29 - $3.29
$3.29
Save $0.70 Save $0.00
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Dome XL Duplex Mag Style Mag Lug Nut 9/16"

$2.79
$2.79 - $2.79
$2.79
$2.49
$2.49 - $2.49
$2.49

9/16" Dome XL Duplex style mag lug nuts with washers. The shank length is 1" and the total length is 2.36". Please refer the following drawing for ...

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$2.79
$2.79 - $2.79
$2.79
$2.49
$2.49 - $2.49
$2.49
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Dome Duplex Mag Style Lug Nut 9/16"

$2.49 - $2.49
$2.49
$2.49
$2.49 - $2.49
$2.49

9/16" Dome Duplex style mag lug nuts with washers. The shank length is 1" and the total length is 1.85". Shank diameter is 0.75". Please refer the ...

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$2.49 - $2.49
$2.49
$2.49
$2.49 - $2.49
$2.49
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Open End Acorn Lug Nut 9/16" Short Hex 13/16"

$1.09
$1.09 - $1.09
$1.09
$0.85
$0.85 - $0.85
$0.85

Open-end short acorn style 9/16" threads nickel plated lug nuts. Hex 13/16". Height 0.63" (16mm). Please refer to the following drawing for exact s...

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$1.09
$1.09 - $1.09
$1.09
$0.85
$0.85 - $0.85
$0.85
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Long ET Conical Bulge Lug Nuts 9/16" Thread

$2.99
$2.99 - $2.99
$2.99
$1.89
$1.89 - $1.89
$1.89

9/16" ET conical bulge long style lug nuts. They fit old style E-T wheels on most earlier Dodge and Ford pickups. Hex is 13/16", shank length is 0....

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$2.99
$2.99 - $2.99
$2.99
$1.89
$1.89 - $1.89
$1.89
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Spike Lug Nuts 32 Pc Installation Kit 9/16" Chrome

$69.90
$69.90 - $69.90
$69.90
$59.90
$59.90 - $59.90
$59.90

Spiked lug nuts installation kit for 8 lug pickups with 9/16" studs. This complete installation kit includes 32 lug nuts, 32 spike screws and a soc...

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$69.90
$69.90 - $69.90
$69.90
$59.90
$59.90 - $59.90
$59.90
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Extra Long Bulge Acorn 9/16" Lug Nuts 3/4" Hex 2.2" Long

$1.99
$1.99 - $1.99
$1.99
$1.49
$1.49 - $1.49
$1.49

Long acorn bulge style 9/16"-18 threads nice chromed lug nuts. 2.2" in length.  3/4" hex.  Price is for each piece.

$1.99
$1.99 - $1.99
$1.99
$1.49
$1.49 - $1.49
$1.49
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Dualie Mag Lug Nuts 9/16" with Washer 0.80" Shank

$3.99
$3.99 - $3.99
$3.99
$2.89
$2.89 - $2.89
$2.89

Dualie mag 9/16" lug nut with washer. Shank diameter 0.80". Shank length 0.80. 1" hex. 2.25" in height. Chrome finish. Visit our application guide ...

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$3.99
$3.99 - $3.99
$3.99
$2.89
$2.89 - $2.89
$2.89
Save $1.10 Save $0.00
Sold out

Spike Lug Nuts 32 Pc Installation Kit 9/16" Black

$69.90
$69.90 - $69.90
$69.90
$59.90
$59.90 - $59.90
$59.90
Out of stock

Spiked lug nuts installation kit for 8 lug pickups with 9/16" studs. This complete installation kit includes 32 lug nuts, 32 spike screws and a soc...

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$69.90
$69.90 - $69.90
$69.90
$59.90
$59.90 - $59.90
$59.90
Sold out
Save $20.00 Save $0.00

Spline Spike Lug Nuts 32 Pc Kit 9/16" Chrome

$109.90
$109.90 - $109.90
$109.90
$89.90
$89.90 - $89.90
$89.90

Spline spiked lug nuts installation kit for 9/16" studs. This complete installation kit includes 32 spike lug nuts and a socket key. Solid lug nuts...

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$109.90
$109.90 - $109.90
$109.90
$89.90
$89.90 - $89.90
$89.90
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Duplex Acorn Lug Nuts 9/16" Thread

$1.99
$1.99 - $1.99
$1.99
$1.59
$1.59 - $1.59
$1.59

Duplex acorn style 9/16"-18 threads lug nut.  7/8" hex. 1.88" in height.  Chrome finish.  Please refer to the following drawing for exact specifica...

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$1.99
$1.99 - $1.99
$1.99
$1.59
$1.59 - $1.59
$1.59
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Long Bulge Acorn Lug Nut 9/16" Black 1.75"

$1.99
$1.99 - $1.99
$1.99
$1.49
$1.49 - $1.49
$1.49

Bulge acorn style 9/16"-18 threads lug nut. 3/4" hex. 1.75" in length. High quality black finish. Visit our application guide page for fitment info...

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$1.99
$1.99 - $1.99
$1.99
$1.49
$1.49 - $1.49
$1.49
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Duplex XL Acorn Lug Nuts 9/16" Thread

$2.99
$2.99 - $2.99
$2.99
$1.99
$1.99 - $1.99
$1.99

Duplex acorn style 9/16"-18 threads lug nut. 7/8" hex. 2.50" in height. Chrome finish. These lug nuts fit many Chevy, GMC trucks, etc. Please refer...

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$2.99
$2.99 - $2.99
$2.99
$1.99
$1.99 - $1.99
$1.99
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Long Bulge Acorn 9/16" Lug Nuts - Through Hardened

$1.59
$1.59 - $1.59
$1.59
$1.39
$1.39 - $1.39
$1.39

Through hardened long acorn bulge style 9/16"-18 threads nice chromed lug nuts. Through hardened acorn lug nuts meet or exceed OEM standards in mat...

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$1.59
$1.59 - $1.59
$1.59
$1.39
$1.39 - $1.39
$1.39
Save $0.20 Save $0.00
Save up to $20.00 Save $0.00

Duplex Spline Drive Lug Nuts 9/16" Black

$59.99 - $74.99
$59.99 - $74.99
$59.99
$39.99 - $54.99
$39.99 - $54.99
$39.99

This set includes 20 ,24 or 32 piece set of 9/16"-18 duplex spline tuner style chrome plated lug nuts with key. The hex key has both 3/4" and 13/16...

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$59.99 - $74.99
$59.99 - $74.99
$59.99
$39.99 - $54.99
$39.99 - $54.99
$39.99
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Duplex XXL Acorn Lug Nuts 9/16" Thread

$2.99
$2.99 - $2.99
$2.99
$2.49
$2.49 - $2.49
$2.49

Duplex XXL acorn style 9/16"-18 threads lug nut. 7/8" hex. 2.75" in height. Chrome finish. These lug nuts fit many Chevy, GMC trucks, etc. Please r...

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$2.99
$2.99 - $2.99
$2.99
$2.49
$2.49 - $2.49
$2.49
Save $0.50 Save $0.00
Save $0.80 Save $0.00

Dualie Acorn Lug Nuts 9/16" with Washer

$4.69
$4.69 - $4.69
$4.69
$3.89
$3.89 - $3.89
$3.89
In stock

Dualie acorn style 9/16" threads lug nut with attached washer.  1" hex. 2.2" in height.  Chrome finish. These lug nuts fit many Chevy, Dodge trucks...

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$4.69
$4.69 - $4.69
$4.69
$3.89
$3.89 - $3.89
$3.89
Save $0.80 Save $0.00
Save $1.70 Save $0.00

Short Dualie Acorn Lug Nuts 9/16" Thread

$3.99
$3.99 - $3.99
$3.99
$2.29
$2.29 - $2.29
$2.29
In stock

Short Dualie acorn style 9/16" threads lug nut.  1" hex. 1.65" in height.  Chrome finish. These lug nuts fit many Chevy, GMC trucks, etc.  Please r...

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$3.99
$3.99 - $3.99
$3.99
$2.29
$2.29 - $2.29
$2.29
Save $1.70 Save $0.00
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Dualie Acorn Lug Nuts 9/16" Thread

$2.99
$2.99 - $2.99
$2.99
$2.49
$2.49 - $2.49
$2.49

Dualie acorn style 9/16" threads lug nut.  1" hex. 2.10" in height.  Chrome finish. These lug nuts fit many Chevy, GMC trucks, etc.  Please refer t...

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$2.99
$2.99 - $2.99
$2.99
$2.49
$2.49 - $2.49
$2.49
Save $0.50 Save $0.00
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Duplex Spline Drive Lug Nuts 9/16" Chrome

$49.99 - $64.99
$49.99 - $64.99
$49.99
$36.99 - $49.99
$36.99 - $49.99
$36.99

This set includes 20, 24 or 32 piece set of 9/16"-18 duplex spline tuner style chrome plated lug nuts with key. The hex key has both 3/4" and 13/16...

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$49.99 - $64.99
$49.99 - $64.99
$49.99
$36.99 - $49.99
$36.99 - $49.99
$36.99
Save up to $15.00 Save $0.00
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Chrome 9/16" Duplex Bulge Acorn Lug Nut 7/8" Hex Dodge Durango

$3.99
$3.99 - $3.99
$3.99
$2.69
$2.69 - $2.69
$2.69

Special bulge acorn lug nut 9/16"-18 with 7/8" hex.  Can be used as replacement lug nuts for Dodge Durango (2004-on).    Sold in each piece.

$3.99
$3.99 - $3.99
$3.99
$2.69
$2.69 - $2.69
$2.69
Save $1.30 Save $0.00

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