ARP SB Chevy Main Bolt Kit - Fits 4-Bolt- L/J- 12 Point 741011 Vise Jaw Inserts firmly hold

Vise Jaw Inserts firmly hold the hex of the fitting during assembly

3/4-10 in Thread

It design keeps the skirt tight to the helmet without the use of Velcro and helps eliminate dust

personal water craft (PWC)

3/8 in Insert ID

ARP SB Chevy Main Bolt Kit - Fits 4-Bolt- L/J- 12 Point 741011 Vise Jaw Inserts firmly holdARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Main Bolt Kit Pro Series 12