Spoon Sports Twin-Block Calipers bolt Package Option:Full PKG Machine Finish These 4 bolts have a

These 4 bolts have a laser etched G and come with 4 nylon inserted flanged nuts to prevent them from coming loose

This is a Grade 5 10mm head bolt to replace the bolt and crush washer on your B or H Series cylinder head

25 and the other 17mm head with M12x1

Allen Head is for all aftermarket housings that use countersunk mounting points

30mm for thick flanges and thermal gaskets

Spoon Sports Twin-Block Calipers bolt Package Option:Full PKG Machine Finish These 4 bolts have aThis is a Grade 5 Titanium Bolt package for twin block Spoon Sports Calipers sold as a set L R this kit consist of 4 Nuts 12 Bolts For Twin Block Calipers ONLY commonly used on DC2 EK9 applications Sold as a complete set or just the exterior facing bolts and their locking nuts