ARP M8 x 1.25 Stud w/ Broach Nose

This ARP performance fastener, stud, bolt, tool, or assembly is the M8 x 1.25 Stud w/ Broach Nose. 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

• ARP2000 Alloy Construction: Forged steel with 220,000 PSI tensile strength handles extreme cylinder pressures without yielding.
• 1.750 Inch UHL: Optimized length provides full thread engagement into block without bottoming out.
• Made from proprietary ARP2000 alloy steel with minimum 220,000 PSI tensile and 160,000 PSI yield strength.
• M8 x 1.25 Metric Threads: Exact OEM-spec pitch rolls on smoothly for consistent preload in B-series cylinder heads.
• 12-Point Broach Nose: Facilitates installation with standard socket and torque wrench preventing thread galling.
• Heat-Treated Finish: Provides corrosion resistance and color-coded stripe for material verification.

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.

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 Stud w/ Broach Nose 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 AF1.750-12GB, 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.