ARP AU7250-1LB Individual Head Stud M12 x 1.25 Broached 8740 Chromoly

The ARP AU7250-1LB is an individual replacement head stud from kit 203-4201, designed for Toyota 22R M12 x 1.25 broached applications. This precision-engineered fastener is ideal for replacing a damaged or lost stud from your ARP head stud kit without purchasing a complete set.

Premium Construction and Manufacturing Process:

• Manufactured from premium grade 8740 chromoly alloy steel, rated far superior to "aircraft" quality materials
• Precisely heat-treated to 200,000 psi tensile strength using vertical rack positioning for complete heat penetration
• Centerless ground after heat-treat to achieve near-perfect concentricity and straightness
• Thread rolled after heat-treat for approximately ten times better fatigue strength than studs threaded before heat treatment
• Features black oxide finish for corrosion resistance

Specifications:

• Thread Size: M12 x 1.25
• Style: Broached stud
• Material: 8740 Chromoly Steel
• Tensile Strength: 200,000 psi
• Finish: Black Oxide
• Parent Kit: ARP 203-4201

ARP studs are manufactured to such exacting tolerances that gaskets and cylinder heads glide into position with perfect alignment. Look for ARP stamped on each stud as your assurance of quality. This single stud does not include the corresponding nut or washer, which are available separately if needed.

Note: This is a single replacement stud only. For complete head stud kit installation, refer to ARP kit 203-4201 which includes all studs, washers, nuts, and assembly lubricant.