Bolts - ARP, Titanium & Grade 8 Hardware for Engines, Chassis

What This Bolts Collection Covers

This collection covers automotive bolts and fastening hardware for repairs, engine assembly, chassis service, drivetrain work, exhaust installation, and wheel related service. It includes individual bolts and application specific sets across SAE and metric thread sizes.

Thread, Length, and Head Style

Choose a bolt by diameter, thread pitch, under head length, head style, material, finish, and intended load. Do not substitute a similar looking fastener when the thread or strength requirement is unknown.

Engine and Driveline Fasteners

Engine hardware can include main bolts, flywheel bolts, header bolts, damper hardware, oil pump bolts, and specialty fasteners for build specific components. Driveline work can require ring gear, axle, and differential bolts with application specific dimensions.

Torque and Assembly Details

Follow the engine or component manufacturer torque procedure, lubricant guidance, and sequence. Some high performance fasteners use a dedicated torque specification or stretch method.

Material and Strength Choices

Automotive bolts are available in different alloys, finishes, and strength classes. ARP, stainless, black oxide, and metric hardware are selected by environment, appearance, corrosion resistance, and the loads the joint must carry.

Do Not Mix Hardware Carelessly

A mismatched bolt, washer, or nut can affect clamp load and clearance. Replace damaged threads and use the correct mating hardware for critical engine, suspension, brake, and steering locations.

Chassis, Wheels, and Exhaust Hardware

Wheel bolts, suspension fasteners, brackets, exhaust hardware, and body mounting bolts must fit the specific location and vehicle. Wheel and suspension components are safety critical and should be installed using approved specifications.

Confirm the Application

Use the vehicle year, make, model, engine, axle, wheel, and product fitment notes to identify the correct fastener. Measure a removed part only as a reference, not as the only confirmation.

Top Fastener Brands

• ARP. High performance engine, drivetrain, and chassis fasteners
• ATI. Damper and engine hardware solutions
• Kooks. Exhaust bolts and locking hardware
• Yukon Gear. Differential and axle fastening components
• Stage 8. Locking fasteners for exhaust and engine applications
• Moroso. Engine assembly and accessory hardware
• ARP Pro Series. Specialty high strength fastener kits
• Goodmark. Restoration and body hardware
• Dorman. Replacement automotive hardware
• Racing Power. Engine dress and accessory hardware
• Vibrant Performance. Exhaust and fabrication hardware
• Energy Suspension. Chassis and bushing mounting hardware
• Hotchkis. Suspension installation hardware
• QA1. Chassis and suspension components
• Wilwood. Brake system hardware

How to Choose the Correct Automotive Bolt

• Confirm the original bolt diameter and thread pitch
• Measure under head length rather than overall length
• Match the head style to tool clearance and component recess
• Choose the material and strength rating for the application load
• Confirm whether the fastener needs a washer, nut, or thread locker
• Use manufacturer torque specifications for critical fasteners
• Check for metric versus SAE thread compatibility
• Replace corroded, stretched, or damaged bolts rather than reusing them
• Confirm wheel, brake, steering, and suspension hardware by vehicle fitment
• Keep engine build fastener kits organized by location and sequence

Common Questions

How do I identify bolt thread pitch?

Use a thread gauge or compare the bolt to the manufacturer specification. Metric pitch and SAE threads are not interchangeable even when diameters appear similar.

What does bolt length mean?

Most bolt length is measured from under the head to the end of the threads. Countersunk bolts are measured differently because the head sits in the component.

Can I reuse engine bolts?

Reuse depends on the bolt and manufacturer instructions. Torque to yield bolts and damaged fasteners should be replaced.

Why use ARP bolts?

ARP bolts are engineered for high performance applications with controlled material and manufacturing specifications. Select the exact part number for the engine or component.

Are stainless bolts stronger than grade 8 bolts?

Material and strength ratings are different properties. Do not assume stainless hardware is a replacement for a high strength automotive bolt without checking specifications.

What are 12 point bolts used for?

Twelve point heads provide compact tool engagement and are common in performance engine and drivetrain hardware where access and strength matter.

Do flywheel bolts need thread locker?

Follow the flywheel, clutch, and fastener manufacturer installation instructions. Many applications specify a particular thread locker and torque procedure.

Can I use a longer bolt?

A longer bolt can bottom out, interfere with moving parts, or reduce clamping accuracy. Use the specified under head length for the application.

How do I choose wheel bolts?

Confirm thread pitch, shank length, seat style, wheel thickness, and vehicle fitment. Wheel bolts must match the wheel and hub design.

What should I do with damaged threads?

Repair the component threads using an approved method or replace the component as needed. Do not force a bolt into damaged threads.

Why Buy Bolts from Black Ops Auto Works

Black Ops Auto Works stocks 89 Bolts SKUs across LS, Coyote, HEMI, Ford, GM, Mopar, Porsche, and import engine and chassis projects with real fitment data, competitive pricing, and support from staff who build these vehicles themselves. Products are filterable by year, make, model, trim, engine, and drivetrain to confirm the correct application before ordering.

For focused shopping, browse our ARP fasteners, ARP head studs, head stud and bolt kits, wheel bolts, hardware, individual hardware, engine hardware.