ARP Stainless Steel Bolt Kit - 12 Point (5) 8mm x 1.25 x 25 12199901 noise-canceling microphone is adjustable to

noise-canceling microphone is adjustable to allow for optimum spacing from the mouth to reduce external noise

Palm-Grip Silicone is added to the inside of the glove palm area to keep the glove in place and reduce hand fatigue

5/8-11 in Stud Thread

Note that sometimes these suits are referred to as "fireproof" racecar driver's jackets

Easy to install and set up

ARP Stainless Steel Bolt Kit - 12 Point (5) 8mm x 1.25 x 25 12199901 noise-canceling microphone is adjustable toARPs 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: Bolt 8 mm x 1. 25 Thread 25