T-Bar Wing NutsTheperfectcomplementtocustom valve covers. Wide- Shoulder ... ends allow improved load-distributiontoprevent vacuum leaks and our 1-1/4" x ... 20 studsaccommodatethethickest racing gasketswithplenty of thread ... revolutionto spare. 4 per package. 66004 ..........5 ... 66005 ..........3-1/2" Deluxe Wing Nuts Offering the famous hex-head/wing ... 66036 ..........5/16" x 18StudHi-Torque Mini NutsThese popular steelmini-nuts ... look and may be selected when more torque is required toprevent leaks. 1-1/2" ... ..........1/4" x 20 Stud Aluminum Mini Nuts 1/4" x 20 withStainlessSteel washers ...