ARP 400-8006 Stainless Steel Accessory Stud Kit M10x1.25 x 48mm 12-Point Set

Vehicle Fitment

Universal - no specific vehicle fitment. Suitable for any application requiring M10 x 1.25 accessory studs, including exhaust manifolds, intake manifolds, valve covers, thermostat housings, water pumps, and other engine or chassis accessories.

Fitment Notes

• Thread pitch is M10 x 1.25 on both the block/component end and the nut end - verify your application uses M10 x 1.25 before ordering
• Stud length is 1.890 in. (48mm) overall - verify clearance and engagement depth for your specific application
• Install studs hand-tight using the hex broach tip and an Allen wrench - do not apply torque through the stud tip
• Apply anti-seize or ARP assembly lubricant to threads when installing into aluminum components to prevent galling and corrosion bonding
• For applications requiring M10 x 1.25 / M10 x 1.50 dual-pitch studs, see ARP 400-8008

Features

• Made from ARP Stainless 300 series stainless steel - impervious to rust, corrosion, and the discoloration caused by heat cycling around exhaust and coolant components
• Polished finish delivers a show-quality appearance on exposed engine accessories such as intake manifolds and valve covers
• Hex broach tip allows easy installation and removal using a standard Allen/hex key - no need for locking pliers or vise grips that can damage the stud
• Nut starter nose guides the stainless 12-point nut onto threads cleanly without cross-threading
• Stainless 12-point nuts provide better tool engagement in confined engine bay locations compared to hex nuts
• Hardened washers included for uniform clamping force and surface protection on aluminum components

Specifications

• Part Number: 400-8006
• Material: ARP Stainless 300 Series
• Finish: Polished
• Base Thread Size: M10 x 1.25
• Top Thread Size: M10 x 1.25
• Overall Length: 1.890 in. (48mm)
• Tip Style: Hex Broach (Allen key installation)
• Nut Style: 12-Point Stainless Steel
• Fitment: Universal
• Quantity: Set of 4

Included Components

• 4x ARP Stainless 300 M10 x 1.25 x 48mm Broached Accessory Studs
• 4x Stainless Steel 12-Point Nuts
• 4x Hardened Washers

Product Description

The ARP 400-8006 is a universal accessory stud kit for M10 x 1.25 applications including exhaust manifolds, intake manifolds, valve covers, thermostat housings, and any other engine or chassis accessory that benefits from stainless steel fastening hardware. OEM accessory bolts are typically mild steel or zinc-plated hardware that corrodes, seizes, and becomes difficult to remove over time - especially in high-heat exhaust and coolant environments. These ARP studs replace them with Stainless 300 series material that resists rust and corrosion indefinitely, maintains its appearance through repeated heat cycles, and threads out cleanly at every service.

The hex broach tip installs easily with a standard Allen wrench, and the nut starter nose eliminates the cross-threading risk common when starting nuts in tight engine bay locations. Stainless 12-point nuts and hardened washers are included. Sold as a set of 4 studs with complete hardware - a clean, corrosion-free upgrade for any M10 x 1.25 accessory mounting location.