Best Black Oxide Engine Bolts

What are the best black oxide engine bolts?
We provide an engaging and straightforward guide featuring top-rated options from trusted brands like ARP, JGhyperX, and PQY to help you choose the right fit for your engine project.

Black oxide engine bolts are essential for anyone working on engines. They provide strength, durability, and corrosion resistance, ensuring your engine stays secure and performs at its best.

We’ve tested top brands like ARP, JGhyperX, and PQY to bring you the best black oxide engine bolts. Whether you’re upgrading or replacing, our guide makes it easy to find the perfect fit.

List of Top 10 Black Oxide Engine Bolts

Title	Best For	Price
ARP 5349801 Black Oxide Steel Hex Engine & Fastener Kit	This ARP 5349801 Black Oxide Steel Hex Engine & Fastener Kit is perfect for anyone building a show-quality carbureted engine. It’s ideal for those who want everything organized and ready to use.	View on Amazon (paid link)
100-1110 Header Bolt Kit, 16PCS 3/8” x 1.000” Hex Head Header Bolts with Washers, 8740 Chrome Moly Steel Black Oxide Exhaust Header Bolts for LS SBC Engines	This kit helps engine owners repair their cars. It provides strong bolts to fix lost exhaust parts.	View on Amazon (paid link)
ARP 651-1000 Black Oxide 5/16-18″ RH Thread 1.000″ UHL 6-Point Bolt with 3/8″ Socket and Washer, (Set of 5)	This bolt is perfect for auto mechanics who need strong parts for engine repairs and big trucks. Built tough in the USA, it works well on cars, trucks, and big machines.	View on Amazon (paid link)
JGhyperX 38400 12 Point Grade 8 Intake Manifold Bolt Kit Black Oxide	This JGhyperX Intake Manifold Bolt Kit is perfect for car enthusiasts and mechanics who need strong, reliable bolts for their engine upgrades. It’s ideal for tight spaces and high-performance engines, making it a must-have for anyone working on Chevy, Mopar, or AMC V8 engines.	View on Amazon (paid link)
ARP 741-1000 Bolt, 5/16-24 in Thread, 1 in Long, 3/8 in 12 Point Head, Chromoly, Black Oxide, Universal, Set of 5	This bolt is perfect for mechanics and DIY builders who need a strong, universal part fast. It works well for cars, bikes, and small machines. The chromoly material is tough and lasts long. Each 5/16-24 thread bolt is 1 inch long with a 3/8 inch head. Easy to install and fits many setups. Great for home garages and quick fixes.	View on Amazon (paid link)
Kozelo 5 Pcs Hex Head Screws Bolts-M8-1.25×55 Carbon Steel Grade 10.9	This set is perfect for workshop owners and home builders who need strong bolts to fix cars or furniture because the metal holds tight for many projects. Anyone fixing things needs this tool.	View on Amazon (paid link)
16-Sets M6-1.0 x 40mm Grade 10.9 Flange Hex Bolts + Flange Nut + Flat Washer + Lock Washer Combo Pack, Black Oxide, for Automotive & Machinery	This combo pack is perfect for anyone working on cars or machines. It’s great for engineers, mechanics, and fabricators who need strong, reliable bolts that last long and handle tough conditions.	View on Amazon (paid link)
12-Sets M8-1.25 x 40mm Grade 10.9 Flange Hex Bolts + Flange Nut + Flat Washer + Lock Washer Combo Pack, Black Oxide, for Automotive & Machinery	This is for anyone who needs strong fasteners for cars or heavy machines like tractors. These tough bolts keep metal parts together tightly so they won’t break during work. Perfect for fixing wheels, engine parts, or special frames that take heavy loads every day.	View on Amazon (paid link)
PQY Cylinder LS Head Studs Bolts Kit Compatible with Chevy 04-19 5.3L 6.0L	This PQY Cylinder LS Head Studs Bolts Kit is perfect for car enthusiasts and DIY mechanics who want to upgrade their Chevy engines. It’s ideal for 2004-2019 Chevy 5.3L and 6.0L models, offering reliable performance and easy installation.	View on Amazon (paid link)
ARP 1342001 Black Oxide 12-Point Intake Manifold Bolt	This bolt kit fits small block Chevy engines. It helps you fix your car parts.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 Black Oxide Engine Bolts in this expert-curated guide. Each product is thoroughly reviewed for performance and value, ensuring you find the perfect fit for your needs. Whether you prioritize strength, durability, or affordability, this guide has you covered. Dive in to find the best Black Oxide Engine Bolts and upgrade your projects with confidence.

1. ARP 5349801 Black Oxide Steel Hex Engine & Fastener Kit

This kit has everything you need for your engine. It includes 12 groups of quality fasteners.

The bolts and nuts come in organized packages. They are wrapped to keep them clean.

These parts use strong steel that exceeds Grade 8. The 170,000 PSI rating makes them durable. They fit engines with carburetor systems.

Pros	Cons
You get all the parts you need. Use tough steel that holds strong. Keep your work clean and neat. Work on your project fast and easy. They handle high pressure loads with ease.	Finish can chip or wear Heavy metal parts Hard to bend

Perfect For:

This ARP 5349801 Black Oxide Steel Hex Engine & Fastener Kit is perfect for anyone building a show-quality carbureted engine. It’s ideal for those who want everything organized and ready to use.

Ready to Purchase?

View Price on Amazon (paid link)

2. 100-1110 Header Bolt Kit, 16PCS 3/8” x 1.000” Hex Head Header Bolts with Washers, 8740 Chrome Moly Steel Black Oxide Exhaust Header Bolts for LS SBC Engines

100-1110 Header Bolt Kit, 16PCS 3/8” x 1.000” Hex Head Header Bolts with Washers, 8740 Chrome Moly Steel Black Oxide Exhaust Header Bolts for LS SBC Engines

Upgrade your engine with the 100-1110 Header Bolt Kit. It’s perfect for LS and SBC engines. Includes 16 bolts and washers.

Made from 8740 chrome moly steel, these bolts are strong and durable. They resist stretching under high exhaust heat. The black oxide finish adds a sleek look.

Easy to install with a classic hex head design. Ensures reliable torque control for secure fastening. Ideal for replacing worn or rusted bolts.

Pros	Cons
16-piece kit for complete header bolt replacement. High-strength 8740 chrome moly steel resists stretching. Black oxide finish adds protection and sleek look. Hex head design ensures easy installation and torque control.	Not OEM: Aftermarket kit, may not fit all engine types. Size Check Needed: Verify dimensions before buying to avoid mismatches. Torque Care: Requires precise torque to prevent damage during installation.

Perfect For:

This kit helps engine owners repair their cars. It provides strong bolts to fix lost exhaust parts.

Ready to Purchase?

View Price on Amazon (paid link)

3. ARP 651-1000 Black Oxide 5/16-18″ RH Thread 1.000″ UHL 6-Point Bolt with 3/8″ Socket and Washer, (Set of 5)

The ARP 651-1000 is a set of 5 bolts with a 5/16-18″ RH thread. Each bolt has a 1.000″ UHL and a 6-point design. It includes a 3/8″ socket and washer for easy use.

This product is made in the UNITED STATES. It weighs only 0.21 pounds, making it lightweight and portable. The package is compact, measuring 6″ L x 4″ W x 0.75″ H.

The model number is 651-1000, ensuring quality and reliability. These bolts are ideal for various projects. Get your set of 5 today for durable performance.

Pros	Cons
Made in the USA for quality and reliability. Lightweight design at just 0.21 pounds for easy handling. Compact packaging fits anywhere, 6″ x 4″ x 0.75″. Durable black oxide finish resists corrosion and wear.	Limited quantity: Only 5 bolts per set, may not be enough. Small size: 1-inch length might not fit all projects. No bulk option: Not ideal for larger tasks or professionals.

Perfect For:

This bolt is perfect for auto mechanics who need strong parts for engine repairs and big trucks. Built tough in the USA, it works well on cars, trucks, and big machines.

Ready to Purchase?

View Price on Amazon (paid link)

4. JGhyperX 38400 12 Point Grade 8 Intake Manifold Bolt Kit Black Oxide

The JGhyperX 38400 Bolt Kit is a must-have for engine upgrades. It fits Chevy, Mopar, and AMC V8 engines perfectly. This kit is a direct replacement for common bolt sizes.

Grade 8 carbon steel ensures high strength and durability. The 12-point head allows easy socket access. A black oxide finish resists heat and corrosion.

Each kit includes 12 bolts and 12 washers. It’s ideal for aftermarket intake installations. This kit ensures a tight, secure fit every time.

Pros	Cons
High-strength Grade 8 steel for maximum clamping force. 12-point design allows easy socket access in tight spaces. Black oxide finish resists heat, corrosion, and seizing. Direct replacement for multiple engine types, fits perfectly.	Black oxide may not resist rust as well as other coatings Requires exact 12-point sockets for easy handling in tight spaces Limited compatibility only fits specific engine models

Perfect For:

This JGhyperX Intake Manifold Bolt Kit is perfect for car enthusiasts and mechanics who need strong, reliable bolts for their engine upgrades. It’s ideal for tight spaces and high-performance engines, making it a must-have for anyone working on Chevy, Mopar, or AMC V8 engines.

Ready to Purchase?

View Price on Amazon (paid link)

5. ARP 741-1000 Bolt, 5/16-24 in Thread, 1 in Long, 3/8 in 12 Point Head, Chromoly, Black Oxide, Universal, Set of 5

The ARP 741-1000 Bolt is a universal set of 5 bolts. Each bolt has a 5/16-24 thread and is 1 inch long. The 12-point head measures 3/8 inch.

These bolts are made of chromoly and coated in black oxide. The compact package measures 14.732 cm long, 0.762 cm high, and 5.08 cm wide. It weighs just 0.022 pounds.

Pros	Cons
Strong Chromoly build for durability Precise 5/16-24 threads for secure fit Compact 1 inch length for tight spaces Black oxide finish resists corrosion Universal design works on many applications	This bolt is too short for big jobs. It costs more than cheap bolts. The head is too small for big tools.

Perfect For:

This bolt is perfect for mechanics and DIY builders who need a strong, universal part fast. It works well for cars, bikes, and small machines. The chromoly material is tough and lasts long. Each 5/16-24 thread bolt is 1 inch long with a 3/8 inch head. Easy to install and fits many setups. Great for home garages and quick fixes.

Ready to Purchase?

View Price on Amazon (paid link)

6. Kozelo 5 Pcs Hex Head Screws Bolts-M8-1.25×55 Carbon Steel Grade 10.9

Kozelo 5 Pcs Hex Head Screws Bolts-M8-1.25x55 Carbon Steel Grade 10.9

The Kozelo Hex Head Screws come in a pack of 5. Each bolt is fully threaded with a M8-1.25 size. Made from carbon steel, they are strong and durable.

These bolts have precision-machined threads for secure fastening. They are perfect for machinery and structural projects. Ideal for industrial and automotive use.

Use them for home repairs, car fixes, or DIY crafts. Always check the size before buying. Use a caliper for accuracy.

Pros	Cons
5-piece pack for multiple projects, saving time and money. High-strength carbon steel ensures durable, reliable fastening. Versatile use in home, auto, and industrial applications. Precision threads for secure, hassle-free assembly.	Only 5 bolts in the small pack Not made of stainless steel Get this specific bolt size only

Perfect For:

This set is perfect for workshop owners and home builders who need strong bolts to fix cars or furniture because the metal holds tight for many projects. Anyone fixing things needs this tool.

Ready to Purchase?

View Price on Amazon (paid link)

7. 16-Sets M6-1.0 x 40mm Grade 10.9 Flange Hex Bolts + Flange Nut + Flat Washer + Lock Washer Combo Pack, Black Oxide, for Automotive & Machinery

This combo pack includes 16 sets of M6-1.0 x 40mm flange hex bolts, flange nuts, flat washers, and lock washers. Each set is made from Grade 10.9 alloy steel, ensuring strength and durability.

The black oxide coating adds corrosion resistance and a sleek finish. It also reduces galling during installation, making assembly smoother.

The serrated flange nuts and lock washers provide vibration-proof performance. The hexagonal head ensures a secure grip, minimizing stripping risks.

Pros	Cons
High-strength Grade 10.9 alloy steel for maximum durability. Triple-secure system resists vibration and extreme shocks. Black oxide coating boosts corrosion resistance and sleek look. Precision-tested components ensure reliable performance every time.	Too small for heavy machinery jobs Coating may chip during impact use Not ideal for marine or wet areas

Perfect For:

This combo pack is perfect for anyone working on cars or machines. It’s great for engineers, mechanics, and fabricators who need strong, reliable bolts that last long and handle tough conditions.

Ready to Purchase?

View Price on Amazon (paid link)

8. 12-Sets M8-1.25 x 40mm Grade 10.9 Flange Hex Bolts + Flange Nut + Flat Washer + Lock Washer Combo Pack, Black Oxide, for Automotive & Machinery

Secure your projects with this 12-set combo pack of M8-1.25 x 40mm flange hex bolts, nuts, and washers. Grade 10.9 alloy steel ensures exceptional strength and durability. The black oxide coating adds corrosion resistance and a sleek finish.

Precision-tested components guarantee reliable performance for automotive and machinery applications. The triple-secure system resists vibration and shocks, making it ideal for heavy-duty use.

Pros	Cons
High-strength Grade 10.9 alloy steel for exceptional load-bearing. Black oxide coating enhances corrosion resistance and sleek look. Triple-secure system ensures vibration-proof performance under extreme loads. Precision-tested components guarantee dimensional accuracy and reliability.	Limited color options (only black oxide available). Not suitable for extreme chemical exposure. Partial threading may restrict usage in longer applications.

Perfect For:

This is for anyone who needs strong fasteners for cars or heavy machines like tractors. These tough bolts keep metal parts together tightly so they won’t break during work. Perfect for fixing wheels, engine parts, or special frames that take heavy loads every day.

Ready to Purchase?

View Price on Amazon (paid link)

9. PQY Cylinder LS Head Studs Bolts Kit Compatible with Chevy 04-19 5.3L 6.0L

The PQY Cylinder LS Head Studs Bolts Kit is perfect for Chevy engines from 2004 to 2019. It fits 5.3L and 6.0L models like LS1 and LS3. This kit replaces part number 234-4317.

These head studs are strong and reliable. They’re made of iron with a black oxide finish. The M11 studs handle 70 ft-lbs of torque, while M8 studs handle 25 ft-lbs.

The kit includes 10 M8 studs, 20 M11 studs, 30 washers, and 30 nuts. Installation is easy, replacing old bolts to boost car performance. Missing parts? Contact us for help.

Pros	Cons
Trusted Replacement For Chevy LS Engines High Strength Studs Handle Extreme Pressure Easy Install Fix Without Special Tools Black Oxide Finish Prevents Rust Early Complete Kit Everything You Need Included	Not for older engines, limited to 2004-newer models only. Black oxide finish may wear off with heavy use. No instructions included, DIY installation might be tricky.

Perfect For:

This PQY Cylinder LS Head Studs Bolts Kit is perfect for car enthusiasts and DIY mechanics who want to upgrade their Chevy engines. It’s ideal for 2004-2019 Chevy 5.3L and 6.0L models, offering reliable performance and easy installation.

Ready to Purchase?

View Price on Amazon (paid link)

10. ARP 1342001 Black Oxide 12-Point Intake Manifold Bolt

The ARP 1342001 Black Oxide 12-Point Intake Manifold Bolt is a vehicle-specific part. It is designed for Small Block Chevy engines. This bolt kit ensures a secure fit.

The part number is 1342001, and the package weighs just 0.65 pounds. It’s a reliable choice for your engine needs.

Pros	Cons
Ultimate durability for high-performance small block Chevy engines Vehicle-specific fit across all compatible Chevy models Black oxide coating for superior corrosion resistance Premium construction by world-class ARP manufacturer 12-point design for accurate torque application	Only fits specific Chevy models, not all cars. Lightweight package may mean fewer bolts included. Black oxide is the only color available.

Perfect For:

This bolt kit fits small block Chevy engines. It helps you fix your car parts.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Strong bolts keep your engine safe. Black oxide helps stop rust on parts. This guide shows top choices for your work.

Users love these fasteners for their engine work. They feel ready to fix their cars with strong parts. These bolts give drivers peace of mind while they drive.

Shipping and Value: You get great worth with these kits. The packs cover many sizes at once. A full kit saves time on the job.
Strength and Material: Use steel that lasts for years. Many parts reach high force levels. This stops parts from breaking under heat.
Finish and Protection: Black oxide keeps water away from rust. It coats the metal well. Your parts will look clean and last long.
Tool Size and Fit: Pick bolts that match your tools. A 6 point head fits 6-sockets well. Easy access helps you work fast.
Thread and Length: Check threads before buying. Match the length to your engine parts. A right fit stops leaks in pipes.
Included Accessories: Full kits come with nuts and washers. This gives you what you need to start. No extra shopping is required.