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This ARP performance fastener, stud, bolt, tool, or assembly is the 7/16 inch-20 Hex Nut 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
- Thread, length, material, strength series, and included quantity are exact-part specific
- Engine, vehicle, component, and installation requirements must match the current ARP application
- (SKU 200-8606) includes 50 precision nuts for connecting rods main studs and cylinder heads in high-performance Chevrolet small block V8 and LS engines.
- This kit provides consistent clamping force and vibration resistance for racing or street applications under extreme conditions.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| Universal or specification-matched application. Verify every dimension, interface, load or operating requirement, and listing note. | |||
Specifications
| Brand | ARP |
|---|---|
| Manufacturer Part Number | 200-8606 |
| Product Type | Hardware Kits - Other |
| Condition | New |
| Configuration | 7/16 inch-20 Hex Nut Kit |
| Thread Size | 7/16 inch-20 fine thread matches ARP rod bolts and main studs for exact fit and smooth engagement |
| Material | Forged 8740 chromoly steel resists fatigue and stretching at high horsepower levels |
| Quantity | 50 nuts per kit provides complete sets for multiple rods or heads in rebuilds |
| Finish | Black oxide coating prevents corrosion and galling during repeated installations |
| Heat Treatment | Processed to ARP 200000 PSI tensile strength specs for endurance in boosted or nitrous setups |
| Q | Does this kit fit LS1 connecting rods? A: Yes ARP 200-8606 nuts pair perfectly with 7/16-20 ARP rod bolts on GM LS1 LS6 and Gen III/IV engines |
| Method | UPS Ground or USPS Priority |
| Availability | Special order - ships within 1-3 business days |
| Packaging | Compact box 5 x 4 x 1 inches |
| Weight | 0.8 lbs |
| Key Features Thread Size | 7/16 inch-20 fine thread matches ARP rod bolts and main studs for exact fit and smooth engagement |
What's Included
One new ARP hardware kits - other 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 .875in OD x 7/16in ID Insert Washers (10 pack)
- ARP 01-06 6.6L GM Duramax Diesel Flywheel Bolt Kit
- ARP 01-10 6.6L GM Duramax Diesel Flexplate Bolt Kit
Frequently Asked Questions
How do I confirm the 7/16 inch-20 Hex Nut 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
- Confirm ARP part number 200-8606, the complete application, and every required supporting component before beginning work.
- Clean and inspect all mating threads and components, then verify thread engagement, length, washers, nuts, lubricant, and required preparation before assembly.
- Follow ARP's current tightening sequence, lubricant instructions, torque or stretch method, and any retorque procedure for this exact part.
- Verify clearance, preload, fastener seating, and normal component operation before returning the vehicle or engine to service.
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