Standard and Special Acorn Lug Nuts – Starting from left to right is a 3/4 inch Hex 0.55 inches tall open acorn lug nut that also comes in 7/16 inch 1/2 inch and 12mm. Next is a 13/16 inch Hex 0.63inches tall open acorn lug nut that also comes in 1/2 inch, 7/16 inch, 9/16 inch 12mm and 14mm. In the center is a 13/16 inch Hex 1.05 inches tall short acorn lug nut that also comes in 7/16 inch, 1/2 inch, 10mm and 12mm. A standard 13/16 inch Hex acorn lug nut that is 1.45 inches tall also comes in 1/16 inch, 1/2 inch, 12mm and 14mm. Special 2 piece 13/16 inch Hex is 1.38 inches tall and is available in other sizes such as 7/16 inches, 1/2 inch, 12mm, 14mm and Left Hand 1/2 inch Left.
This black acorn lug nut comes in 13/16 inch, 7/16 inch, 1/2 inch, plus 12mm. A long acorn lug nut like the one pictured above is available in 13/16 inch, 1/2 inch, 12mm and 14mm. An extra long lug nut is only available in 13/16 inch and 14mm. The open duplex acorns are 1.81 inch tall available in a variety of sizes including 14mm, 7/8, 1/16, 1/2, 9/16, and 5/8 inch. 5/8 and 9/16 can be found in left hand threads also. A 1.90 inch duplex in left hand threads are 9/16, 5/8 and 1/2 inch plus the 14 mm. Also find 7/8, 7/16, 1/2, 9/16 and 5/8 inch. These are the most popular of all the acorn lug nuts.
The 2.32 inches tall XL Duplex above comes in 7/8 inch, 1/2 inch, 9/16 inch and 14mm. Plus a special 9/16 left hand tread acorn lug nut. The XXL Duplex is available in 7/8 inch and 9/16 inch and is 2.75 inches tall.
Dually truck owners will find a short dually acorn 1.65 inches long in 1 inch, 9/16 inch and 14mm plus a long Dually Truck Acorn 2.10 inches long. Long Dually acorn lug nuts are 2.10 inches and come in sizes 1 inch, 9/16 inch, 5/8 inch and 14mm. In addition a 9/16 inch and 5/8 Left Hand thread is available. Additionally these lug nuts have a 90 degree seat angle.
Low Boy Street Rod