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Vehicle Info NeededMR GASKETPART NUMBER: 720-976
Ultra Seal Header Bolts 5/16" -18 x 3/4"
$2738
1 left in stock
Ships on Oct 19, 2026
Lowest Price Guarantee
Hex Head
- Ultra Seal Header Bolts
- 5/16''-18 x 3/4''
- Fits adapter plate headers
- 14/pkg
- Quick and Easy Installation
- Heat-Treated For Strength
- Ideal For Tight Spaces
- Grade 5 Material
- Protective Black Finish
- Header Flange Bolts - Hex Head
Mr. Gasket's grade-5 bolts with 7/16'' hex head are designed to handle the abuse of ultra-hot exhaust ports. Features a smaller than standard 7/16'' hex head which is perfect for tight-clearance headers. Part #720-3409 bolts feature a smaller, 3/8'' hex head and come with AN-style washers. In many cases you can even use a box end wrench to tighten your headers! Black oxide plated.
Header Flange Bolts - Socket Head
Save time work and solve the impossible tightening problems of some header installations with socket head bolts. Grade-8 and black oxide plated.
Part TypeHeader Bolt
Product LineMr. Gasket Ultra Seal Header Bolts
BrandMR GASKET
Package Height0.9
Package Width4.8
Package Length7.2
Weight0.5 PG
Part CategoryPerformance Parts
Underhead Length (Mm)19
Underhead Length0.75 in (19.1 mm)
QuantitySold as a set of 14
Fastener StyleBolt
Fastener FinishBlack oxide
MaterialSteel
Part FitmentUniversal
Fastener MaterialSteel
Head StyleHex
Vendor Part Number976
Package Qty1
Package TypeEA
No Questions
No Reviews
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Some parts are not legal for use in California or other states with similar laws / regulations
