ARP M8 x 1.25 x 45mm Broached 10 Piece Stud Kit

This ARP performance fastener, stud, bolt, tool, or assembly is the M8 x 1.25 x 45mm Broached 10 Piece Stud Kit. Confirm the exact engine or vehicle application, thread size, length, material, strength series, included quantity, installation lubricant, tightening sequence, and current ARP torque specification before ordering.

Key Features

• Genuine ARP fasteners: Forged 8740 chrome moly steel with 200000 psi tensile strength for consistent clamping under extreme loads.
• Rolled threads: Increases fatigue resistance and thread strength compared to cut threads for long-term reliability.
• Stud configuration: Minimizes cylinder head thread damage and delivers uniform torque distribution across rocker shafts.
• Extensive testing ensures fasteners withstand over 260000 psi clamping loads.
• Made from heat-treated 8740 chrome moly steel with black oxide finish and rolled threads for maximum strength and corrosion resistance.
• Yes this 10-piece set matches OEM stud specs for rocker arms on B16A B17A B18A B18B B18C engines in Civic CRX Del Sol and Integra models.

Fitment

Specifications

What’s Included

One new ARP hardware – single in the exact configuration and quantity identified by this listing. Brackets, wiring, air lines, fittings, switches, fasteners, fitting kits, fluids, covers, and accessories are included only when expressly stated for this exact part.

About ARP

Automotive Racing Products manufactures high-performance studs, bolts, nuts, washers, wheel hardware, assembly tools, and installation lubricants for engine, drivetrain, chassis, and racing applications. Thread dimensions, material, preload method, lubricant, torque, and included quantity remain exact-part specific.

Important Disclosures

• California Proposition 65 warning applies. Review the current manufacturer warning before handling or installation.

Related Parts

• Shop all ARP products
• ARP 1/2 x 6.5in Long Broached Individual Stud
• ARP 1/2in -20 12pt Nut (Single Nut)
• ARP 1/2in x 5.250in Long Broached Allen Head Stud (Single Stud)

Frequently Asked Questions

How do I confirm the M8 x 1.25 x 45mm Broached 10 Piece Stud Kit fits my application?
Match the exact engine family or vehicle, component location, thread diameter and pitch, under-head length, material, strength series, and every current ARP application note.

Can I reuse the factory torque value with this ARP hardware?
Not automatically. Use ARP’s current instructions for the exact part, material, lubricant, tightening sequence, and preload method. Factory torque values may be based on different hardware and friction.

What is included with this ARP kit?
Only the studs, bolts, nuts, washers, lubricant, and tools expressly listed for this exact part number are included. Verify the required quantity before disassembly.

Installation Instructions

1. Confirm ARP part number 400-8023, the complete application, and every required supporting component before beginning work.
2. Clean and inspect all mating threads and components, then verify thread engagement, length, washers, nuts, lubricant, and required preparation before assembly.
3. Follow ARP’s current tightening sequence, lubricant instructions, torque or stretch method, and any retorque procedure for this exact part.
4. Verify clearance, preload, fastener seating, and normal component operation before returning the vehicle or engine to service.