ARP M12 x 1.25 12pt Nut Kit

SKU: 300-8307

ARP M12 x 1.25 12pt Nut Kit for 1993-2005 Toyota 2JZ and 1UZ-FE Engines

ARP M12 x 1.25 12-point nut kit provides replacement hardware for head stud applications on Toyota 2JZ-GTE 2JZ-GE and 1UZ-FE engines found in Supra GS300 SC300 LS400 and similar models. This kit of 10 nuts ensures secure clamping under high cylinder pressures in boosted street and race setups. Built from high-strength steel these nuts maintain torque values through repeated heat cycles.

Key Features

• ARP Forged Steel Construction: Resists fatigue and stretching for dependable head clamping in performance engines
• 12-Point Nut Design: Allows positive wrench engagement to prevent rounding during high-torque assembly
• Black Oxide Finish: Shields against corrosion in harsh engine bay environments
• Application Matched Kit: Contains exact quantity of 10 nuts for complete head stud replacement
• High Clamp Load Capability: Supports 200000 psi tensile strength fasteners for extreme power levels

Product Notes

• Pair with ARP head studs for full assembly on 2JZ and 1UZ engines
• Inspect studs for wear before nut installation
• Compact kit ships quickly with protective packaging

Installation Notes

• Professional installation recommended.
• Apply ARP Ultra-Torque fastener lubricant to threads and under nut faces
• Torque to ARP specified values in sequence typically 65-75 ft-lbs dry or per instructions

This Part Fits

Year	Make	Model	Submodel
1993-1998	Toyota	Supra	2JZ-GTE
1993-2002	Toyota	Supra	2JZ-GE
1992-2000	Lexus	SC300	2JZ-GE
1998-2005	Lexus	GS300	2JZ-GE
1990-2000	Toyota	LS400	1UZ-FE
1998-2000	Lexus	GS400	1UZ-FE
2001-2005	Lexus	LS430	1UZ-FE

Why Choose ARP?

• Proven in NHRA Top Fuel and Pro Stock racing applications
• Precise manufacturing tolerances for repeatable torque accuracy
• Direct match to ARP stud kits for seamless builds

Frequently Asked Questions

• Q: Does this kit fit Toyota 2JZ-GTE head studs?
  A: Yes ARP 300-8307 provides the exact M12 x 1.25 12-point nuts for ARP 203-4304 and similar 2JZ head stud kits with 10 nuts total.
• Q: What material are these nuts made from?
  A: High-strength alloy steel with black oxide coating rated for 200000 psi tensile loads and high-temperature resistance.
• Q: What is the ARP warranty on these nuts?
  A: Lifetime warranty against manufacturing defects when installed and torqued per ARP guidelines.

Shipping & Handling

• Method: UPS Ground or USPS Priority
• Availability: In stock – ships same or next business day
• Packaging: Protective plastic tray in 4 x 4 x 1 inch box
• Weight: 0.3 lbs