ARP M8 x 1.25 x 25 Black Oxide Hex Bolts (5/pkg)

SKU: 661-1002 | UPC: 672036025274

ARP Universal M8 x 1.25 x 25 Black Oxide Hex Bolts (5/pkg)

ARP M8 x 1.25 x 25mm black oxide hex bolts come in a 5-pack for performance automotive hardware needs. These fasteners fit a broad range of metric engine applications including valve covers oil pans intake manifolds and ARP kits on Honda Civic Toyota Supra Nissan and Subaru engines. High-tensile strength ensures reliable clamp load under high heat and stress for durable results.

Key Features

• Genuine ARP Fasteners: Forged from 8740 chromoly steel with 180000 PSI tensile strength for consistent clamping in demanding builds
• Precision-Rolled Threads: Provide maximum thread engagement and accurate repeatable torque values every time
• Black Oxide Finish: Resists corrosion reduces galling and allows precise torque without seizing
• Hex Head Design: Accepts standard 13mm wrench or socket for quick installation in tight spaces
• Matched 5-Pack Quantity: Exact count needed for replacing bolts in most ARP hardware kits and common repairs

Product Notes

• Use ARP Ultra-Torque fastener lubricant on threads and under heads for best results
• Torque to ARP specifications after cleaning holes and threads thoroughly
• Ships in protective packaging to prevent damage

Installation Notes

• Professional installation recommended.
• Clean all threads and mating surfaces apply ARP Ultra-Torque where specified
• Follow ARP torque sequence re-torque after 500 miles or initial heat cycles

This Part Fits

Year	Make	Model	Submodel
Universal	Honda	Civic / Integra / Accord	All D B K-Series
Universal	Toyota	Supra / Celica / MR2	All 2JZ 3S-GTE 4A-GE
Universal	Nissan	240SX / 350Z / GT-R	All SR20 RB26 KA24
Universal	Subaru	Impreza / WRX / STI	All EJ20 EJ25

Why Choose ARP?

• Proven in NHRA NASCAR and endurance racing for millions of miles
• Exclusive heat treatment process exceeds SAE specs for fatigue resistance
• Application-engineered dimensions match OEM replacements perfectly

Frequently Asked Questions

• Q: What engines or vehicles do these M8 bolts fit?
  A: Standard M8 x 1.25 x 25mm size fits valve covers oil pans throttle bodies and manifolds on metric performance engines like Honda D-series B-series K-series Toyota 2JZ Nissan RB Subaru EJ series confirm your thread pitch
• Q: What material and finish do ARP hex bolts have?
  A: 8740 chromoly steel construction with proprietary heat treat to 180000 PSI black oxide coating for rust protection and low friction torquing
• Q: What is the warranty and torque procedure?
  A: Lifetime warranty against fastener failure when installed per ARP instructions torque dry or with Ultra-Torque in specified sequence re-check after break-in

Shipping & Handling

• Method: UPS Ground or USPS Priority
• Availability: In stock – ships same or next business day
• Packaging: Compact poly sleeve 3 x 3 x 0.5 inches
• Weight: 0.1 lbs