ARP 7/16-20 12-Point Nut 5/8 Socket - 8740 Chrome Moly - ARP301-8354

ARP 12-point nut in 7/16-20 thread taking a 5/8 socket, made from 8740 chrome moly. ARP catalogues this as a bulk fastener rather than a vehicle-specific kit, so it is the nut you buy to match an existing ARP stud in rod, main, head or accessory service. The 12-point head is what lets you get a socket on it in the tight clearance a hex nut will not clear, and the parallel-ground seating face keeps the load square to the stud so the reading on your torque wrench reflects actual clamp load.

ARP publishes this part number and its 8740 chrome moly material, and nothing further - no package quantity, nut height, or tensile rating is given for it. It is a genuinely different part number from ARP 301-8314, which ARP also lists as a 8740 chrome moly nut; ARP does not publish what separates the two, so we have not guessed. If you need a specific quantity, height or grade confirmed before ordering, contact us and we will confirm it with ARP.

• Thread: 7/16-20
• Wrench size: 5/8 socket
• Head style: 12-point
• Material: 8740 chrome moly
• ARP part number 301-8354 - ordered and stocked separately from ARP 301-8314
• ARP catalogues this as a bulk fastener, not a vehicle-specific kit
• ARP publishes no package quantity, nut height or tensile strength for this part number

Specifications

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy