Open End

Open End Cone Seat Lug Nuts are primarily used on Steel Wheels which require a cone seat. This type of lug nut has a 60° taper.


Open End Bulge Cone Seat Lug Nuts are primarily used on Steel Wheels which require a cone seat or Alloy Wheels which have a cap covering the lug nuts. This type of lug nut has a 60° taper.



Open End
.55″ Long (19mm Hex)
3/8″ – 1301
7/16″ – 1302
1/2″ – 1304
12mm 1.25 – 1306
12mm 1.50 – 1307
12mm 1.75 – 1312


Open End Bulge Acorn
1″ Long (19mm Hex)
7/16″ – 1302-1S
1/2″ – 1304-1S
12mm 1.25 – 1306-1S
12mm 1.50 – 1307-1S
14mm 1.50 – 1309-1S
9/16″ – 1310-1S
12mm 1.75 – 1312-1S
14mm 2.0 – 1350-1S


Open End Acorn
.63″ Long (21mm Hex)
7/16″ – 1322
1/2″ – 1324
12mm 1.25 – 1326
12mm 1.50 – 1327
14mm 1.50 – 1309
9/16″ – 1310


Open End Bulge Acorn
1″ Long (21mm Hex)
7/16″ – 1302-1
1/2″ – 1304-1
12mm 1.25 – 1306-1
12mm 1.50 – 1307-1
14mm 1.50 – 1309-1
9/16″ – 1310-1
12mm 1.75 – 1312-1
14mm 2.0 – 1350-1


Open End Bulge Acorn
1″ Long (17mm Hex)
7/16″ – 1532
1/2″ – 1534
12mm 1.25 – 1536
12mm 1.50 – 1537
14mm 1.50 – 1539


Open End Short Bulge Acorn
.84″ Long (17mm Hex)
1/2″ – 1534S
12mm 1.25 – 1536S
12mm 1.50 – 1537S


Duplex Open-End Bulge Acorn
1″ Long (7/8″ Hex)
14mm 1.50 – 1309-1D


Radius Seat Open-End
.83″ Long (19mm Hex)
12mm 1.50 – 1307-1SB
14mm 1.50 – 1309-1R


Radius Seat Open-End
.83″ Long (22mm Hex)
14mm 1.50 – 1309-1B