This item is for sixteen (16) Elgin Pro Stock 190,000 PSI alloy steel rocker arm "screw-in" studs for various small block applications requiring 3/8 in. studs. 

These studs feature a hex head for use with guide plates. Some OE cylinder heads will require machining to accept these rocker studs.

ROCKER STUD SPECIFICATIONS

• Overall Length: 2.325 in.
• Stud Top Length (B): 1.725 in.
• Stud Top Thread Length (D): .875 in.
• Stud Top Thread Size (E): 3/8-24 in.; fine thread
• Shoulder Length: .850 in.
• Shoulder Diameter: 3/8 in.
• Base Stud Length (C): .600 in.
• Base Stud Thread Size (F): 7/16-14; coarse thread
• Hex Nut: Yes
• Material: 190,000 PSI alloy steel
• Notes: Machining required to use with some OE cylinder heads