ARP 742-2250 Fine Thread 12-Point Bolt Set 5-Piece

Built to ARP's exacting standards, these fasteners are available in both ARP 300 stainless steel and heat-treated 8740 chrome moly (black oxide finish), each nominally rated at 180,000 psi tensile strength — providing a significant safety margin over standard Grade 8 hardware.

Key Features:

• Fine thread, 12-point head design for precise torque application and wrench access in tight spaces
• 5-piece set with washers included
• Available in ARP 300 stainless steel (polished, rust-resistant) or 8740 chrome moly (black oxide finish)
• Nominal tensile strength rated at 180,000 psi
• Diameter range: 1/4" to 1/2" (SAE) or M6 to M12 (metric)
• Length range: 1/2" to 6"
• Matching nuts available separately

ARP 300 stainless steel bolts offer a polished finish that resists corrosion and requires virtually no maintenance, making them ideal for exposed or high-visibility installations. The 8740 chrome moly option delivers the same high tensile strength in a heat-treated, black oxide finish suited for performance and heavy-duty applications.