Sign Up to Get
10% Off Your Next Order!
+ 500 FREQUENT BUYER POINTS
Be among the first to receive Weekly Specials & OPGI News.
10% off restoration parts only. 500 Frequent Buyer Points added after promotional order ships. See welcome email for full details.
Sign up for texts from OPGI, and get all our best offers and more!
By subscribing to OPGI text messaging at 80205, you agree to receive recurring autodialed marketing text msgs (e.g. cart reminders) to the mobile number used at opt-in. Consent is not a condition of purchase. Msg frequency may vary. Msg & data rates may apply. Reply HELP for help and STOP to cancel. See Terms and Conditions & Privacy Policy.
ADDED TO YOUR CART!
Bolt, Harmonic Balancer, ARP, SBC, 1/2" Square Drive Head
ADDED TO YOUR WISHLIST!
These special versions of ARP's 200,000 PSI rated balancer bolt has a forged 1/2" square-drive end that allows you to rotate an engine with any tool having a 1/2" square-drive. These "trick" bolts are made from 8740 chromoly steel with a heavy duty black oxide finish and come with a 1/4" thick wide area washer. ARP, when only the best will do.
Find parts that fit your vehicle