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1/2"-20 Lug Nuts

1/2"-20 Lug Nuts

Every 1/2"-20 lug nut we carry: half-inch thread diameter with 20 threads per inch, the classic SAE size. Stocked in mag, acorn, bulge acorn, ET, spline and spike styles, in chrome, black and specialty finishes.

This size is commonly found on classic Ford and Mopar vehicles, older Jeeps, many trailers and a wide range of aftermarket wheels. Always verify your thread size before ordering. Unsure which size you need? Start with our wheel fitment guide before you order.

1/2"-20 lug nut common questions

Common questions

What does 1/2"-20 mean? The stud is 1/2 inch in diameter with 20 threads per inch. You may also see it written as 1/2-20 or 1/2x20.

Are these right for my trailer? Many trailer axles use 1/2"-20 studs, but not all. Confirm your axle's spec before ordering.

Mag or acorn seat? Use the seat your wheel was drilled for: mag seats use a flat washer and shank, acorn seats taper. Every listing states its seat type.

You may also need 7/16"-20 lug nuts, 9/16"-18 lug nuts left hand thread lug nuts and all wheel lug nuts. See our torque reference chart for recommended tightening specs.

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Black ET Spline Drive Tuner Lug Nuts 1/2"

$49.95 - $64.95
$49.95 - $64.95
$49.95
$35.99 - $49.99
$35.99 - $49.99
$35.99

Thread size 1/2" Style / seat ET Spline Sold as Set options: 20 / 24 / 32 pieces 6-Spline tuner style black plated ET conical lug nuts 1/2"...

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$49.95 - $64.95
$49.95 - $64.95
$49.95
$35.99 - $49.99
$35.99 - $49.99
$35.99
Save up to $14.96 Save $0.00
Save $0.30 Save $0.00

Bulge Acorn Lug Nuts 1/2" Thread

$1.39
$1.39 - $1.39
$1.39
$1.09
$1.09 - $1.09
$1.09

Thread size 1/2" Style / seat Bulge Acorn Sold as Each (single piece) Bulge acorn style 1/2" threads nice chromed lug nut. These lug nuts f...

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$1.39
$1.39 - $1.39
$1.39
$1.09
$1.09 - $1.09
$1.09
Save $0.30 Save $0.00
Save $0.20 Save $0.00

Short Mag Style Lug Nut 1/2"-20

$1.99
$1.99 - $1.99
$1.99
$1.79
$1.79 - $1.79
$1.79

Thread size 1/2"-20 Style / seat Short Mag Overall length 1.26" 1/2"-20 short mag style mag lug nuts with washers. The shank length is 0.33...

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$1.99
$1.99 - $1.99
$1.99
$1.79
$1.79 - $1.79
$1.79
Save $0.20 Save $0.00
Save $0.24 Save $0.00

Open End Acorn Lug Nut 1/2" Short Hex 13/16"

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

Thread size 1/2" Style / seat Open End Acorn Hex size 13/16" Sold as Each (single piece) Open-end short acorn style 1/2" threads nickel p...

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$1.09
$1.09 - $1.09
$1.09
$0.85
$0.85 - $0.85
$0.85
Save $0.24 Save $0.00
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Duplex Spline Drive Lug Nuts 1/2" Black

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

Thread size 1/2" Style / seat Duplex Spline Sold as Set options: 20 / 24 / 32 pieces This set includes 20 ,24 or 32 piece set of 1/2" duple...

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$59.99 - $74.99
$59.99 - $74.99
$59.99
$39.99 - $54.99
$39.99 - $54.99
$39.99
Save up to $20.00 Save $0.00

Dome Duplex Mag Style Lug Nut 1/2"-20

$2.39 - $2.49
$2.39
$2.39 - $2.49
$2.39 - $2.49
$2.39

Thread size 1/2"-20 Style / seat Duplex Mag Overall length 1.85" 1/2" Dome Duplex style mag lug nuts with washers. The shank length is 1" a...

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$2.39 - $2.49
$2.39
$2.39 - $2.49
$2.39 - $2.49
$2.39
Save $0.24 Save $0.00

Acorn Lug Nuts Solid 1-Piece 1/2" Thread

$1.29
$1.29 - $1.29
$1.29
$1.05
$1.05 - $1.05
$1.05

Thread size 1/2"-20 Style / seat Acorn Hex size 13/16" Sold as Each (single piece) Acorn solid 1-piece style 1/2"-20 threads lug nut. Sol...

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$1.29
$1.29 - $1.29
$1.29
$1.05
$1.05 - $1.05
$1.05
Save $0.24 Save $0.00
Save $0.40 Save $0.00

Bulge Acorn Lug Nut 1/2"-20 Black

$1.89
$1.89 - $1.89
$1.89
$1.49
$1.49 - $1.49
$1.49
In stock

Thread size 1/2"-20 Style / seat Bulge Acorn Hex size 3/4" Sold as Each (single piece) Bulge acorn style 1/2"-20 threads lug nut. 3/4" he...

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$1.89
$1.89 - $1.89
$1.89
$1.49
$1.49 - $1.49
$1.49
Save $0.40 Save $0.00
Product features with icons and measurements for EZAccessory 1/2" thread spline spike lug nuts
Save $25.00 Save $0.00

1/2" Black Spline Spike Lug Nuts 4.4" Long Bulge Acorn with Key

$84.99
$84.99 - $84.99
$84.99
$59.99
$59.99 - $59.99
$59.99

Thread size 1/2"-20 Style / seat Spike Overall length 4.4" Sold as Set of 20 SPECS - 1/2"-20 Thread Size Spline Spike Lug Nuts | Overall ...

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$84.99
$84.99 - $84.99
$84.99
$59.99
$59.99 - $59.99
$59.99
Save $25.00 Save $0.00
Save $20.00 Save $0.00

Spike Lug Nuts 24 Pc Kit 1/2" Chrome

$69.90
$69.90 - $69.90
$69.90
$49.90
$49.90 - $49.90
$49.90

Thread size 1/2" Style / seat Spike Sold as Set of 24 Spiked lug nuts installation kit for vehicles with 1/2" studs. This complete installa...

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$69.90
$69.90 - $69.90
$69.90
$49.90
$49.90 - $49.90
$49.90
Save $20.00 Save $0.00
Save up to $11.96 Save $0.00

Spline Drive Tuner Lug Nuts 1/2" Gunmetal

$39.95 - $44.95
$39.95 - $44.95
$39.95
$27.99 - $32.99
$27.99 - $32.99
$27.99

Thread size 1/2" Style / seat Spline Drive Sold as Set options: 16 / 20 / 24 pieces 6-Spline tuner style gunmetal finish lug nuts 1/2" thre...

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$39.95 - $44.95
$39.95 - $44.95
$39.95
$27.99 - $32.99
$27.99 - $32.99
$27.99
Save up to $11.96 Save $0.00
Save up to $5.00 Save $0.00

Black Acorn Tuner Lug Nuts 1/2"

$27.95 - $32.95
$27.95 - $32.95
$27.95
$23.95 - $27.95
$23.95 - $27.95
$23.95
In stock

Thread size 1/2" Style / seat Tuner Sold as Set options: 16 / 20 / 24 pieces Optional 16, 20 or 24 piece 1/2" tuner style black lug nut set...

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$27.95 - $32.95
$27.95 - $32.95
$27.95
$23.95 - $27.95
$23.95 - $27.95
$23.95
Save up to $5.00 Save $0.00
Save up to $0.70 Save $0.00

ET Conical Long Lug Nuts 1/2"-20

$2.19
$2.19 - $2.19
$2.19
$1.49 - $1.59
$1.49 - $1.59
$1.49

Thread size 1/2"-20 Style / seat ET Overall length 1.81" 1/2" ET conical Long style lug nuts with ET conical washers. They fit old style E-...

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$2.19
$2.19 - $2.19
$2.19
$1.49 - $1.59
$1.49 - $1.59
$1.49
Save up to $0.70 Save $0.00
Save $0.50 Save $0.00

Acorn Lug Nut 1/2"-20 Black

$1.89
$1.89 - $1.89
$1.89
$1.39
$1.39 - $1.39
$1.39

Thread size 1/2"-20 Style / seat Acorn Hex size 13/16" Sold as Each (single piece) Acorn style 1/2"-20 threads lug nut. 13/16" hex. High ...

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$1.89
$1.89 - $1.89
$1.89
$1.39
$1.39 - $1.39
$1.39
Save $0.50 Save $0.00
Save up to $0.60 Save $0.00

Open End Medium Mag Style Lug Nut 1/2"-20

$1.99
$1.99 - $1.99
$1.99
$1.39 - $1.49
$1.39 - $1.49
$1.39

Thread size 1/2"-20 Overall length 1.25" 1/2"-20 Thread Open End Medium Mag style mag lug nuts with washers. The shank length is 0.55" and th...

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$1.99
$1.99 - $1.99
$1.99
$1.39 - $1.49
$1.39 - $1.49
$1.39
Save up to $0.60 Save $0.00
Save $7.00 Save $0.00

EZAccessory 1/2-20 Extended Tuner Lug Nuts 20 Pieces Racing Open End Style with Key

$31.99
$31.99 - $31.99
$31.99
$24.99
$24.99 - $24.99
$24.99

Thread size 1/2-20 Hex size 17mm Overall length 2.0" Sold as Set of 20 SET - 20 Pieces Racing Tuner Lug Nuts + Key SPECS - 1/2"-20 Th...

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$31.99
$31.99 - $31.99
$31.99
$24.99
$24.99 - $24.99
$24.99
Save $7.00 Save $0.00
Save up to $14.00 Save $0.00

Spline Drive Tuner Lug Nuts 1/2" Black

$39.95 - $44.95
$39.95 - $44.95
$39.95
$25.95 - $31.95
$25.95 - $31.95
$25.95

Thread size 1/2"-20 Style / seat Spline Drive Sold as Set options: 16 / 20 / 24 pieces 6-Spline tuner style black finish lug nuts 1/2"-20 t...

View full details
$39.95 - $44.95
$39.95 - $44.95
$39.95
$25.95 - $31.95
$25.95 - $31.95
$25.95
Save up to $14.00 Save $0.00
Save up to $0.20 Save $0.00

Cragar Style Mag Lug Nut 1/2" Black

$1.79 - $1.99
$1.79 - $1.99
$1.79
$1.69 - $1.79
$1.69 - $1.79
$1.69
In stock

Thread size 1/2" Style / seat Standard Mag Overall length 1.57" 1/2" Black cragar style standard mg lug nuts including washers that fit Cra...

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$1.79 - $1.99
$1.79 - $1.99
$1.79
$1.69 - $1.79
$1.69 - $1.79
$1.69
Save up to $0.20 Save $0.00
Save $0.60 Save $0.00

Long Bulge Acorn 1/2" Lug Nuts 3/4" Hex

$1.99
$1.99 - $1.99
$1.99
$1.39
$1.39 - $1.39
$1.39

Thread size 1/2"-20 Style / seat Bulge Acorn Hex size 3/4" Overall length 1.75" Sold as Each (single piece) Long acorn bulge style 1/2"...

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$1.99
$1.99 - $1.99
$1.99
$1.39
$1.39 - $1.39
$1.39
Save $0.60 Save $0.00
Save up to $0.40 Save $0.00

Dome Short Mag Style Lug Nut 1/2"-20

$1.99
$1.99 - $1.99
$1.99
$1.59 - $1.69
$1.59 - $1.69
$1.59

Thread size 1/2"-20 Style / seat Short Mag Overall length 1.50" 1/2"-20 Dome Short Mag style mag lug nuts with washers. The shank length is...

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$1.99
$1.99 - $1.99
$1.99
$1.59 - $1.69
$1.59 - $1.69
$1.59
Save up to $0.40 Save $0.00

Wheel Spinner Lug Nuts 1/2" Length 2 3/4"

$69.90 - $69.90
$69.90
$69.90
$69.90 - $69.90
$69.90

Thread size 1/2" Wheel Spinner Lug Nuts 1/2" Length 2 3/4" Fitment and specs Thread size: 1/2" Length: 2 3/4" Made for mounting wheel s...

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$69.90 - $69.90
$69.90
$69.90
$69.90 - $69.90
$69.90
Save $0.30 Save $0.00

Dome XL Duplex Mag Style Mag Lug Nut 1/2"-20

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

Thread size 1/2"-20 Style / seat Duplex Mag Overall length 2.36" 1/2" Dome XL Duplex style mag lug nuts with washers. The shank length is 1...

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$2.79
$2.79 - $2.79
$2.79
$2.49
$2.49 - $2.49
$2.49
Save $0.30 Save $0.00
Save up to $0.70 Save $0.00

ET Conical Bulge Lug Nuts 1/2"

$2.19
$2.19 - $2.19
$2.19
$1.49 - $1.59
$1.49 - $1.59
$1.49

Thread size 1/2"-20 Style / seat ET Overall length 1.4" 1/2"-20 ET conical bulge style lug nuts with ET conical washers. They fit old style...

View full details
$2.19
$2.19 - $2.19
$2.19
$1.49 - $1.59
$1.49 - $1.59
$1.49
Save up to $0.70 Save $0.00
Save $0.24 Save $0.00

Open End Acorn Lug Nut 1/2" Thread 3/4" Hex

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

Thread size 1/2"-20 Style / seat Open End Acorn Hex size 3/4" Sold as Each (single piece) Open-end acorn style 1/2"-20 threads lug nuts. ...

View full details
$1.09
$1.09 - $1.09
$1.09
$0.85
$0.85 - $0.85
$0.85
Save $0.24 Save $0.00

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