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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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GM 1/2" External Thread Lug Nut

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

Thread size 1/2" Style / seat OEM Special GM OEM style 1/2" lug nuts with external threads. These lug nuts fit Chevy, GMC trucks and vans. Th...

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$2.19
$2.19 - $2.19
$2.19
$1.69
$1.69 - $1.69
$1.69
Save $0.50 Save $0.00
Save up to $13.96 Save $0.00

Open End Spline Drive Tuner Lug Nuts 1/2" Black

$35.95 - $40.95
$35.95 - $40.95
$35.95
$23.99 - $26.99
$23.99 - $26.99
$23.99

Thread size 1/2" Style / seat Spline Drive Hex size 13/16" Sold as Set options: 20 / 24 pieces 6-Spline tuner style open end black finish...

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$35.95 - $40.95
$35.95 - $40.95
$35.95
$23.99 - $26.99
$23.99 - $26.99
$23.99
Save up to $13.96 Save $0.00
Save up to $0.40 Save $0.00

Cragar Style Mag Lug Nut 1/2"-20

$1.89 - $1.99
$1.89 - $1.99
$1.89
$1.49 - $1.59
$1.49 - $1.59
$1.49

Thread size 1/2"-20 Style / seat Standard Mag Overall length 1.57" 1/2" Cragar style standard mg lug nuts including washers that fit...

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$1.89 - $1.99
$1.89 - $1.99
$1.89
$1.49 - $1.59
$1.49 - $1.59
$1.49
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Save $0.30 Save $0.00

Open End Bulge Acorn Lug Nut 1/2"-20

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

Thread size 1/2"-20 Sold as Each (single piece) Open-end bulge acorn style 1/2"-20 threads nickel plated lug nuts. Please refer to the follow...

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$1.19
$1.19 - $1.19
$1.19
$0.89
$0.89 - $0.89
$0.89
Save $0.30 Save $0.00
Save $3.00 Save $0.00

OEM Ford 1/2" Lug Nut

$5.49
$5.49 - $5.49
$5.49
$2.49
$2.49 - $2.49
$2.49

Thread size 1/2" Style / seat OEM Hex size 13/16" Special Ford OEM style 1/2" lug nuts with built-in washers. These lug nuts fit older Ford...

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$5.49
$5.49 - $5.49
$5.49
$2.49
$2.49 - $2.49
$2.49
Save $3.00 Save $0.00
Save up to $14.96 Save $0.00

ET Spline Drive Tuner Lug Nuts 1/2"

$39.95 - $54.95
$39.95 - $54.95
$39.95
$32.99 - $39.99
$32.99 - $39.99
$32.99

Thread size 1/2"-20 Style / seat ET Spline Sold as Set options: 16 / 20 / 24 / 32 pieces 6-Spline tuner style chrome plated ET spline lug ...

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$39.95 - $54.95
$39.95 - $54.95
$39.95
$32.99 - $39.99
$32.99 - $39.99
$32.99
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EZAccessory product features of a full set of spline spike lug nuts, touting corrosion resistance, and precision machining, along with an American-made badge.
Save $25.00 Save $0.00

1/2" Chrome 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 up to $0.20 Save $0.00

Cragar Mag Extended Style Lug Nut 1/2"-20

$1.99 - $2.19
$1.99 - $2.19
$1.99
$1.89 - $1.99
$1.89 - $1.99
$1.89

Thread size 1/2"-20 Style / seat Extended Mag Overall length 1.90" 1/2" Cragar SST style mag lug nuts with washers that fit Cragar SST/Weld...

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$1.99 - $2.19
$1.99 - $2.19
$1.99
$1.89 - $1.99
$1.89 - $1.99
$1.89
Save up to $0.20 Save $0.00

Wheel Spinner Lug Nuts 1/2" Length 2"

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

Thread size 1/2" One complete set of spinners installation kit. The pictures only shows install hardware for one spinner, however this set includ...

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$69.90 - $69.90
$69.90
$69.90
$69.90 - $69.90
$69.90
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Dome Medium 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 Overall length 1.5" 1/2"-20 Dome Medium Mag style mag lug nuts with washers. The shank length is 0.55" and the total leng...

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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
Save $0.20 Save $0.00

Acorn Lug Nut 1/2"-20

$1.29
$1.29 - $1.29
$1.29
$1.09
$1.09 - $1.09
$1.09

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. Chrom...

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$1.29
$1.29 - $1.29
$1.29
$1.09
$1.09 - $1.09
$1.09
Save $0.20 Save $0.00
Save up to $8.96 Save $0.00

Spline Drive Open End Tuner Lug Nuts 1/2"

$29.95 - $34.95
$29.95 - $34.95
$29.95
$21.99 - $26.99
$21.99 - $26.99
$21.99

Thread size 1/2"-20 Style / seat Spline Drive Sold as Set options: 16 / 20 / 24 pieces 6-Spline tuner style chrome plated open end lug nuts...

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$29.95 - $34.95
$29.95 - $34.95
$29.95
$21.99 - $26.99
$21.99 - $26.99
$21.99
Save up to $8.96 Save $0.00
Save up to $7.96 Save $0.00

Spline Drive Tuner Lug Nuts 1/2"

$29.95 - $34.95
$29.95 - $34.95
$29.95
$22.99 - $28.99
$22.99 - $28.99
$22.99

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

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$29.95 - $34.95
$29.95 - $34.95
$29.95
$22.99 - $28.99
$22.99 - $28.99
$22.99
Save up to $7.96 Save $0.00
Save up to $0.20 Save $0.00

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

$1.79 - $1.99
$1.79 - $1.99
$1.79
$1.69 - $1.79
$1.69 - $1.79
$1.69

Thread size 1/2"-20 Style / seat Standard Mag Overall length 1.57" 1/2" open end mag style lug nuts including washers that fit Cragar SS wh...

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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 up to $0.40 Save $0.00

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

$2.19
$2.19 - $2.19
$2.19
$1.79 - $1.89
$1.79 - $1.89
$1.79

Thread size 1/2"-20 Style / seat Standard Mag Overall length 1.66" 1/2" Cragar Dome style standard mg lug nuts including Cragar style washe...

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$2.19
$2.19 - $2.19
$2.19
$1.79 - $1.89
$1.79 - $1.89
$1.79
Save up to $0.40 Save $0.00
Save up to $0.60 Save $0.00

Long ET Conical Bulge Lug Nuts 1/2"

$2.29
$2.29 - $2.29
$2.29
$1.69 - $1.79
$1.69 - $1.79
$1.69

Thread size 1/2" Style / seat ET Overall length 1.75" 1/2"-20 ET conical bulge long style lug nuts with ET conical washers. They fit old st...

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$2.29
$2.29 - $2.29
$2.29
$1.69 - $1.79
$1.69 - $1.79
$1.69
Save up to $0.60 Save $0.00
Save up to $15.00 Save $0.00

Duplex Spline Drive Lug Nuts 1/2" Chrome

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

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"-20 du...

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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
Save up to $0.30 Save $0.00

Cragar SST Style Mag Lug Nut 1/2"-20

$2.09 - $2.29
$2.09 - $2.29
$2.09
$1.89 - $1.99
$1.89 - $1.99
$1.89

Thread size 1/2"-20 Style / seat SST XL Mag Overall length 2.12" 1/2" Cragar SST style mag lug nuts with washers that fit Cragar SST/Weld a...

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$2.09 - $2.29
$2.09 - $2.29
$2.09
$1.89 - $1.99
$1.89 - $1.99
$1.89
Save up to $0.30 Save $0.00
Save up to $0.30 Save $0.00

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

$1.99 - $2.19
$1.99 - $2.19
$1.99
$1.79 - $1.89
$1.79 - $1.89
$1.79

Thread size 1/2"-20 Overall length 2.0" 1/2" Cragar SST open mag style lug nuts with washer. They fit Cragar, Protec, Weld Pro Star and Dragl...

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$1.99 - $2.19
$1.99 - $2.19
$1.99
$1.79 - $1.89
$1.79 - $1.89
$1.79
Save up to $0.30 Save $0.00
Save up to $1.10 Save $0.00

Black Long ET Conical Bulge Lug Nuts 1/2"-20

$2.99
$2.99 - $2.99
$2.99
$1.89 - $1.99
$1.89 - $1.99
$1.89

Thread size 1/2"-20 Style / seat ET Overall length 1.75" Black 1/2" Long ET conical bulge style lug nuts with ET conical washers. They fit ...

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$2.99
$2.99 - $2.99
$2.99
$1.89 - $1.99
$1.89 - $1.99
$1.89
Save up to $1.10 Save $0.00
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Spline Drive Tuner Lug Nuts 1/2" Purple

$39.95 - $44.95
$39.95 - $44.95
$39.95
$27.99 - $32.99
$27.99 - $32.99
$27.99
Out of stock

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

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$39.95 - $44.95
$39.95 - $44.95
$39.95
$27.99 - $32.99
$27.99 - $32.99
$27.99
Sold out
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Open End Short Mag Style Lug Nut 1/2"-20

$1.79
$1.79 - $1.79
$1.79
$1.39 - $1.49
$1.39 - $1.49
$1.39

Thread size 1/2"-20 Style / seat Short Mag Overall length 0.81" 1/2"-20 open End Short Mag style mag lug nuts with washers. The shank lengt...

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$1.79
$1.79 - $1.79
$1.79
$1.39 - $1.49
$1.39 - $1.49
$1.39
Save up to $0.40 Save $0.00
Sold out

Chrome Acorn Tuner Lug Nuts 1/2"

$27.95 - $32.95
$27.95 - $32.95
$27.95
$20.95 - $25.95
$20.95 - $25.95
$20.95
Out of 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 chrome plated lug...

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$27.95 - $32.95
$27.95 - $32.95
$27.95
$20.95 - $25.95
$20.95 - $25.95
$20.95
Sold out
Save $0.20 Save $0.00

Long Bulge Acorn 1/2 Lug Nuts - Through Hardened

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

Thread size 1/2" Style / seat Bulge Acorn Sold as Each (single piece) Through hardened long acorn bulge style 1/2" threads nice chromed lug...

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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

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