🔩 Lock in strength and style — bolts that mean business!
The 8912A Locking Header Bolt Kit features Grade 8 steel bolts with a duplex nickel finish for exceptional strength and corrosion resistance. Its double hex head design includes a recessed allen for easy installation and visual tightness inspection, making it reusable and maintenance-friendly for professional-grade applications.
| Metal Type | Steel, Nickel |
| Material Type | Nickel |
| Thread Style | Right Hand |
| Item Hardness | Grade 8 |
| Head Type | Hex |
| Screw Head Style | Hex |
| Fastener Type | Hexagon Bolt |
| Thread Type | Unf |
| Grade Rating | Grade 8 |
| Exterior Finish | Nickel |
| Manufacturer Grade | Grade 8 |
D**O
works perfect
look and fit great on the 390 ford engine we installed them on.
C**.
Missing fastener
Product as described however package was short 1 piece only recieved 15 fasteners not 16
K**E
Great case
Fits perfect and arrived on time before I actually cracked my new slippery iPhone X
R**D
Excellent product
When properly installed Stage 8 header bolts have always done what they're supposed to. No header gasket leaks! Excellent product, reasonable price, and fast shipping.
F**Y
good quality vs
as described, good quality vs cost
B**T
Five Stars
did the job bolts are still tight!
R**S
Overpriced
Overpriced for what they are. I had to modify the locking tabs on most of the bolts to fit on the headers of my 93 Chevy 350, one of the most common engines out there. Overall I at least expected the tabs to work without modification because that is what would set them apart from any regular header bolts
M**Y
Five Stars
The best!!
Trustpilot
1 month ago
2 weeks ago
