3/8-16" Header Bolts 1" UHL Hex Head, Pack of 12, AF37-1001 Other 1/8" NPT Male/Female Thread with

1/8" NPT Male/Female Thread with 1/8" NPT Female Thread on

Hyundai Grandeur HG 2016-Current

AF4530-3301

They're designed to match 833 series bulkhead fittings and are available in black anodised aluminium

16-21/64" (415mm) Mount Dia

3/8-16" Header Bolts 1" UHL Hex Head, Pack of 12, AF37-1001 Other 1/8" NPT Male/Female Thread withAF37 1001 3 8 16" Header Bolts 1" UHL Hex Head, Pack of 12 When installing headers you will need header bolts, factory exhaust manifold bolts won't work. These Aeroflow header bolts are made from Grade 8 steel for strength. They are coated in a black oxide for protection and long lasting durability. Each hex head is designed to take a7 16" spanner size. This compact hex head is ideal for use where space is minimal on most aftermarket header flanges.