Secure your assembly with the precision and reliability of ARP 615-1500 stainless steel bolts. Engineered for high-performance applications where both tensile strength and corrosion resistance are paramount, these fasteners feature a 12-point head design. This compact head style allows for a smaller 7/16" wrenching diameter, making them ideal for tight clearances where standard hex heads may not fit.

Forged from ARP 300 stainless steel, these bolts are rated significantly stronger than standard Grade 8 hardware. The polished finish ensures a professional, show-quality appearance that will not rust or pit, even in harsh environments. These are a direct replacement for various hardware needs in engine accessories, brackets, and custom fabrication projects.

• Part Number: 615-1500
• Thread Size: 3/8-16
• Underhead Length: 1.500 in.
• Head Style: 12-Point
• Wrenching Size: 7/16 in.
• Material: ARP 300 Stainless Steel

Secure your components with the superior strength and corrosion resistance of ARP Stainless 300 series fasteners. These 12-point bolts are engineered for high-performance applications where reliability and finish are paramount. The compact 12-point head design offers a larger bearing surface than standard hex bolts and provides better tool clearance in tight spaces using a 7/16" socket or wrench.

• Constructed from ARP Stainless 300 alloy, rated at approximately 170,000 psi tensile strength.
• Polished stainless finish provides a maintenance-free look that resists rust and corrosion.
• Precision-rolled threads ensure optimum engagement and prevent galling.
• Thread Size: 3/8-16
• Underhead Length: 1.250 inches
• Wrenching Size: 7/16 inch 12-point
• Manufacturer Part Number: 615-1250

These ARP high-performance fasteners (MPN 615-1000) are manufactured from premium stainless steel, providing exceptional corrosion resistance and a clean, professional finish for your engine bay or chassis. The 12-point head design offers a greater contact area than standard hex bolts, allowing for higher torque application and easier wrenching in tight clearances.

• Manufacturer Part Number: 615-1000
• Thread Size: 3/8-16
• Under Head Length: 1.000 in.
• Head Style: 12-Point
• Wrenching Size: 7/16 in.
• Material: High-strength stainless steel

Ideal for accessory brackets, intake manifolds, and general high-performance assembly where durability and fastener integrity are paramount.

Secure your components with the superior strength and corrosion resistance of this ARP Stainless 300 bolt set. These fasteners are manufactured from a specialized alloy that is virtually impervious to rust and corrosion, making them an excellent choice for exhaust, cooling systems, or external engine components where durability and a polished appearance are equally important.

Engineered for high-performance applications, these bolts are rated at approximately 170,000 psi tensile strength—significantly higher than standard Grade 8 hardware. The compact 12-point head design allows for more socket contact area, ensuring reliable torque application and preventing rounding in tight clearances. Each fastener is precision-machined to ensure consistent thread engagement and clamping force.

• Manufacturer Part Number: 615-0750
• Material: Stainless 300 Alloy
• Thread Size: 3/8 in.-16 RH
• Under Head Length (UHL): 0.750 in.
• Head Style: 12-Point
• Tensile Strength: 170,000 psi
• Quantity: Set of 5

This 5-pack of ARP stainless steel bolts provides a high-strength, corrosion-resistant fastening solution for automotive applications. Engineered to withstand the rigors of high-performance environments, these fasteners are maintenance-free and polished to a mirror-like finish, making them an excellent choice for both engine accessories and chassis components.

• Thread Size: 7/16"-14
• Under Head Length (UHL): 1.500"
• Wrenching: 1/2" 12-Point
• Material: 300 Series Stainless Steel
• Includes: 5 bolts per package
• Manufacturer Part Number: 614-1500

ARP fasteners are precision-machined for consistent thread engagement and clamping force. The 12-point head design offers a smaller profile than traditional hex heads, allowing for easier access in confined spaces and a cleaner, professional appearance.

These ARP 12-point stainless steel bolts (MPN 613-1500) offer a premium fastening solution for high-performance automotive and marine applications. Constructed from proprietary ARP Stainless 300 material, these fasteners are rated at approximately 170,000 psi tensile strength, making them significantly stronger than standard Grade 8 hardware. The polished finish provides superior corrosion resistance and a professional look for engine bays or chassis components.

• Thread Size: 3/8in-16
• Underhead Length: 1.500 in
• Head Style: 12-Point
• Material: ARP Stainless 300
• Finish: Polished
• Quantity: Pack of 5
• Manufacturer Part Number: 613-1500

Secure your components with the ARP 613-1250 12-point bolt kit, engineered for high-strength applications where corrosion resistance is essential. Manufactured from ARP’s proprietary Stainless 300 alloy, these fasteners are rated at approximately 170,000 psi tensile strength—outperforming standard Grade 8 hardware. The compact 12-point head design provides a greater bearing surface and allows for easier socket access in confined spaces compared to traditional hex-head bolts.

This kit features precision-rolled threads to ensure optimal engagement and fatigue life. The polished stainless finish provides a show-quality appearance that will not rust, making them ideal for engine accessories, bracketry, and marine use.

• Manufacturer Part Number: 613-1250
• Thread Size: 3/8in-16
• Under Head Length (UHL): 1.250 inch
• Head Style: 12-Point
• Material: Stainless 300 Alloy
• Tensile Strength: 170,000 psi
• Quantity: 5 bolts per package

These ARP 613-1000 stainless steel fasteners offer a superior combination of strength and corrosion resistance. Designed for a wide range of automotive and specialty applications, these bolts feature a compact 12-point head that allows for increased socket contact and easier access in tight spaces. Each bolt is manufactured to ARP's exacting standards for reliable clamping force and consistent performance.

• Manufacturer Part Number: 613-1000
• Material: Stainless Steel (SS)
• Thread Size: 3/8"-16
• Under Head Length: 1.000"
• Head Style: 12-Point
• Quantity: 5 per package

Secure your components with the ARP 5/16-18 x 1.500" 12-point stainless steel bolts (MPN 612-1500). These fasteners are engineered for high-corrosion environments and high-strength applications where a polished appearance is required without sacrificing clamping force.

• Material: Corrosion-resistant stainless steel alloy for long-lasting durability in harsh conditions.
• Head Style: 12-point head provides more surface area for wrenching, allowing for higher torque application in tight spaces compared to standard hex heads.
• Dimensions: 5/16-18 thread pitch with a 1.500-inch under-head length.
• Manufacturer Part Number: 612-1500

Built to ARP's rigorous quality standards, these bolts offer a superior alternative to standard Grade 8 hardware, specifically designed to withstand the heat cycles and vibration common in automotive and marine performance environments.

Upgrade your vehicle hardware with professional-grade fasteners from ARP. These 5/16"-18 coarse-thread bolts are manufactured from polished Stainless 300 alloy, providing a maintenance-free finish that is virtually impervious to rust and corrosion. Rated at 170,000 psi tensile strength, they offer significantly more reliability than standard Grade 8 hardware for critical automotive applications.

• Thread Size: 5/16"-18
• Underhead Length: 1.250"
• Head Style: 12-Point
• Material: Polished Stainless 300
• Tensile Strength: 170,000 psi
• Quantity: Pack of 5 bolts
• Manufacturer Part Number: 612-1250

The compact 12-point head design allows for a smaller footprint and easier tool access in tight clearances compared to traditional hex-head bolts. These fasteners are ideal for use on accessories, brackets, and trim where both strength and aesthetics are required.

Secure your critical components with the strength and corrosion resistance of ARP 12-point stainless steel bolts. Engineered for high-performance applications where standard hardware cannot meet necessary tolerances or environmental demands, these fasteners provide a maintenance-free solution with a professional, polished finish. The 12-point head design offers a greater surface area for torque application and a more compact profile for tight clearances compared to traditional hex hardware.

• Manufacturer Part Number: 612-1000
• Thread Size: 5/16"-18
• Under Head Length: 1.000 in.
• Head Style: 12-Point
• Material: Stainless Steel
• Quantity: 5 Bolts per package

Upgrade your hardware with the professional-grade reliability of this ARP 12-point bolt kit. These fasteners are manufactured from high-quality stainless steel that is specially alloyed for increased durability and superior corrosion resistance compared to standard Grade 8 hardware. The 12-point head design allows for a smaller socket size, making these ideal for tight clearances while providing a larger load-bearing surface than standard hex bolts.

• Polished stainless steel finish resists rust and maintains a show-quality appearance.
• Precision-rolled threads ensure consistent torque loading and prevent galling.
• Compact 12-point head provides a high-performance look and excellent wrench contact.
• Ideal for engine accessories, bracketry, and various automotive or marine applications.

• Thread Size: 5/16"-18
• Under Head Length (UHL): 0.725"
• Head Style: 12-Point
• Material: Stainless Steel
• Quantity: Set of 5 bolts
• Manufacturer Part Number: 612-0750

The ARP 611-1500 bolt kit provides a high-strength, corrosion-resistant fastening solution for demanding automotive and specialty applications. These fasteners feature a 12-point head design, which allows for a smaller wrenching diameter in tight clearances while providing more surface area for consistent torque application compared to standard hex bolts.

Constructed from premium stainless steel, these bolts are designed to withstand harsh environments without rusting or pitting, making them an ideal upgrade for engine accessories, trim, or any component requiring a 1/4"-20 thread pitch and 1.5-inch under-head length (UHL). The polished finish provides a professional, high-performance look that maintains its luster over time.

• Manufacturer Part Number: 611-1500
• Thread Size: 1/4"-20
• Under Head Length (UHL): 1.500"
• Head Style: 12-Point
• Material: Stainless Steel
• Quantity: 5 Bolts per Package

This 5-pack of ARP high-strength stainless steel bolts provides a premium fastening solution for automotive accessories and engine components. Manufactured from ARP's specialty stainless steel alloy, these fasteners offer a rated tensile strength that exceeds standard Grade 8 hardware while remaining virtually impervious to rust and corrosion. The polished finish provides a professional, maintenance-free look for any engine bay.

The compact 12-point head design offers a larger bearing surface than traditional hex heads and permits easier tool access in tight clearances. Each fastener is precision-machined to ensure exact thread engagement and consistent clamping loads across all five bolts in the set.

• Manufacturer Part Number: 611-1250
• Material: High-strength Stainless Steel
• Thread Size: 1/4"-20
• Under Head Length (UHL): 1.25 inches
• Head Style: 12-Point
• Quantity: Set of 5 bolts

The ARP 611-1000 12-point bolt kit provides a high-strength, corrosion-resistant fastening solution for custom automotive applications and component assembly. These bolts are manufactured from premium stainless steel, offering a maintenance-free finish that resists rust and pitting in demanding environments.

The compact 12-point head design offers a greater bearing surface than standard hex-head fasteners and allows for easier tool access in confined spaces. Precision-machined for consistent engagement, these fasteners are ideal for securing accessories where both aesthetics and mechanical integrity are required.

• Manufacturer Part Number: 611-1000
• Material: Stainless Steel (SS)
• Head Style: 12-Point
• Thread Size: 1/4"-20
• Under Head Length (UHL): 1.000"
• Package Quantity: 5 Bolts

Secure your components with the professional-grade strength and corrosion resistance of ARP 12-point stainless steel bolts. These fasteners are engineered to exceed the specifications of standard hardware, offering a high-tensile strength solution for automotive applications where reliability and aesthetics are critical.

The 12-point head design provides more surface area for tool engagement, allowing for higher torque loads and better clearance in tight spaces compared to traditional hex-head bolts. Constructed from ARP's proprietary stainless steel alloy, these bolts feature a polished finish that is virtually impervious to rust and corrosion.

• Manufacturer Part Number: 611-0750
• Thread Pitch: 1/4in-20
• Under Head Length (UHL): 0.750 in
• Head Style: 12-Point
• Material: Polished Stainless Steel
• Quantity: Pack of 5 bolts

Upgrade your vehicle's hardware with the superior strength and corrosion resistance of ARP stainless steel bolts. These 1/4-20 x 0.515-inch fasteners are manufactured from ARP's proprietary Stainless 300 alloy, which is polished to a high luster and rated at 170,000 psi tensile strength. This makes them significantly stronger than standard Grade 8 hardware while remaining virtually impervious to rust and pitting.

The 12-point head design provides a larger gripping surface for more consistent torque application and offers better clearance in tight spaces compared to traditional hex heads. These bolts are an ideal choice for engine accessories, brackets, or any application where both structural integrity and a show-quality finish are required.

• Thread Size: 1/4-20
• Underhead Length: 0.515 in
• Head Style: 12-Point
• Material: Stainless 300 (Stainless Steel)
• Tensile Strength: 170,000 psi
• Manufacturer Part Number: 611-0515

Secure your differential housing with the ARP 437-3001 Stainless Steel Rear End Cover Bolt Kit. Specifically engineered for Chevrolet 10-bolt rear ends, this kit replaces standard factory hardware with high-strength, corrosion-resistant fasteners that maintain their finish even in the harshest under-car environments.

Constructed from ARP's proprietary 300 series stainless steel, these bolts are rated at 170,000 psi tensile strength, making them significantly stronger than Grade 8 hardware. The polished finish provides a show-quality appearance that will not chip or peel like chrome plating, while the included washers ensure even load distribution across the cover flange to prevent leaks.

• Fits Chevrolet 10-bolt rear end housings
• Manufactured from polished 300 series stainless steel
• 170,000 psi tensile strength for superior clamping force
• Corrosion-resistant material prevents rust and seizing
• Complete kit includes necessary washers
• Manufacturer Part Number: 437-3001

Secure your starter motor with the precision and strength of the ARP 430-3511 Starter Bolt Kit. Engineered specifically for GM applications requiring an M10 fastener, these bolts replace factory hardware that can stretch or succumb to corrosion over time. These fasteners are forged from ARP's proprietary 300 series stainless steel, which is heat-treated to reach a 170,000 psi tensile strength—significantly stronger than standard Grade 8 hardware.

The compact 12-point head design provides increased clearance for sockets in the tight spaces between the starter housing and the engine block. Because they are manufactured from polished stainless steel, these bolts are virtually impervious to rust and road grime, ensuring they remain easy to remove for future maintenance. The kit comes complete with parallel-ground washers to ensure even load distribution across the mounting surface.

• Manufacturer Part Number: 430-3511
• Thread Size: M10
• Underhead Length: 4.470 in
• Head Style: 12-Point
• Material: 300 Series Stainless Steel
• Tensile Strength: 170,000 psi
• Finish: Polished
• Includes: Bolts and washers

Fits 1978-1979 Porsche 930 Turbo (3.0L / 3.3L).

The ARP Crankcase Thru Bolt Kit is an essential upgrade for Porsche 911/930 engine builds, providing the superior clamping force needed to maintain case integrity and prevent oil leaks. When assembling air-cooled cases, factory hardware can often be a weak point under high thermal loads; these fasteners are engineered to exceed OE specifications and ensure precise alignment of the crankcase halves.

• Manufactured from premium 8740 chrome moly steel
• Heat-treated to a tensile strength of 200,000 psi
• Precision J-form threads rolled after heat treatment for maximum fatigue resistance
• Includes all necessary thru-bolts, nuts, and washers for a complete installation
• Designed specifically for Porsche 3.0L and 3.3L crankcase configurations
• Manufacturer Part Number: 204-5405

Fits select Ford vehicles equipped with the 5.0L Coyote engine.

Ensure your valvetrain remains secure under high-load conditions with the ARP Ford Coyote Cam Tower Hex Bolt Kit. These fasteners replace the factory cam tower hardware, providing the superior clamping force and fatigue resistance required for performance builds and high-RPM applications. Each bolt is engineered to maintain precise camshaft alignment and prevent cap movement during operation.

• Manufacturer Part Number: 156-1005
• Engine Compatibility: Ford Coyote (5.0L)
• Bolt Head Style: Hex head
• High-strength alternative to standard OE fasteners
• Provides consistent, reliable clamping for camshaft caps

Fits Ford 5.0L Coyote engines.

The ARP 156-1004 12-Point Cam Tower Bolt Kit provides the essential clamping force and reliability required for high-performance Ford 5.0L Coyote valvetrains. These high-strength fasteners replace the factory bolts to ensure precise cam tower alignment and stability, which is critical for maintaining valvetrain geometry under high-RPM conditions or when using heavy-duty valve springs.

• Specifically engineered for the Ford 5.0L Coyote platform
• Compact 12-point head design offers superior socket clearance in tight cylinder head areas
• Manufactured from premium 8740 chrome moly steel
• Heat-treated to 180,000 psi tensile strength for maximum durability
• Black oxide finish for long-term corrosion resistance
• Includes a full set of fasteners for a complete cam tower installation
• Manufacturer Part Number: 156-1004

Ensure your engine's oiling system remains stable with the ARP Ford Oil Pump Bolt Kit (MPN 150-6902). Standard factory fasteners can stretch or loosen under the thermal cycling and high-RPM vibration of a performance engine. This kit replaces OE hardware with premium alloy steel fasteners, providing the increased tensile strength and clamping force necessary to prevent oil pump movement or gasket failure.

• Engineered for Ford applications requiring a 5/16-inch hex head fastener.
• Manufactured from high-strength alloy steel for superior durability over factory bolts.
• Compact 5/16-inch hex head design allows for better socket clearance during installation.
• Includes premium washers to ensure proper load distribution across the pump housing.
• Manufacturer Part Number: 150-6902.

Ensure your oil pump stays securely mounted with the ARP 150-6901 Oil Pump Bolt Kit. In high-performance Ford engines, standard hardware is prone to stretching or fatigue, which can lead to pump misalignment or catastrophic pressure loss. This kit provides a significant strength upgrade over factory fasteners by utilizing precision-engineered hardware designed for the rigors of racing and high-RPM use.

Each bolt is manufactured from premium 8740 chrome moly steel and heat-treated to a 180,000 psi tensile strength rating. The 12-point head design offers a smaller footprint than standard hex heads, allowing for easier socket access in the tight confines of the oil pan area while providing more surface contact for torque application. The threads are rolled after heat treatment, ensuring superior fatigue resistance compared to bolts with cut threads.

• Manufacturer Part Number: 150-6901
• Thread Size: 5/16 inch
• Head Style: 12-Point
• Material: 8740 Chrome Moly Steel
• Finish: Black Oxide
• Tensile Strength: 180,000 psi
• Fitment: Replaces factory oil pump hardware on select Ford applications

Fits select 1990-2006 Mitsubishi Lancer Evolution, Eclipse, Galant, Eagle Talon, and Plymouth Laser models equipped with the 4G63 engine.

The ARP 107-1003 Cam Tower Bolt Kit provides a high-strength upgrade over factory hardware for the Mitsubishi 4G63 engine. Cam towers are critical components that maintain camshaft alignment and bearing clearances. This kit provides consistent clamping force to ensure the valvetrain stays secure under high RPM and heavy load conditions.

As a direct replacement for worn or stretched OE fasteners, these bolts are designed for durability and precision, meeting the standards required by professional engine builders for the 4G63 platform.

• Application: Mitsubishi 4G63 Engines
• Product Type: Cam Tower Bolt Kit
• Manufacturer Part Number: 107-1003
• Engine Compatibility: Fits both 6-bolt and 7-bolt 4G63 variants within the 1990-2006 year range
• Includes complete set of hardware for cam tower installation

Fits select 2005-2012 Audi and Volkswagen models (including A3, A4, GTI, Jetta, and Passat) equipped with 2.0L and 2.0T engines.

Ensure the structural integrity of your valvetrain with the ARP Cam Tower Bolt Kit. Designed as a high-strength alternative to factory hardware, these fasteners provide the consistent clamping force required to maintain camshaft carrier alignment and prevent mechanical shifting under high-load conditions. Whether you are performing a routine cylinder head service or building a high-performance 2.0T engine, these bolts offer the reliability and precise tolerances that professional engine builders demand to prevent premature wear and maintain oil pressure integrity.

• Manufacturer Part Number: 104-1001
• Engine Compatibility: 2.0L / 2.0T 4-Cylinder (FSI/TSI)
• High-strength material construction for superior tensile strength compared to OE hardware
• Ensures precise camshaft tower-to-head clamping for valvetrain stability
• Ideal for both stock service and high-boost performance applications

The Old Man Emu UCB19 Center Bolt and Nut is a critical component for maintaining the alignment and integrity of your vehicle's leaf spring pack. As part of ARB’s fully integrated suspension ecosystem, this replacement center pin ensures that individual spring leaves remain precisely positioned and secured within the assembly.

Engineered to handle the shear loads and environmental stresses inherent in heavy-duty and off-road suspension systems, this bolt is a necessary replacement during leaf pack maintenance, rebuilds, or when adding an extra leaf. Using genuine OME hardware ensures the tolerances match your existing suspension components for a reliable, safe installation.

• Product Type: Leaf Spring Center Bolt and Nut
• Manufacturer Part Number: UCB19
• Function: Secures and aligns leaf spring packs
• Brand: Old Man Emu / ARB
• Included: (1) Center Bolt and (1) Nut

Ensure a secure and precise connection for your aftermarket steering wheel with the Advan Racing X Chasing JS 2022 Steering Wheel Bolt Set. These bolts are engineered to provide reliable fastening, a critical component for both safety and steering feel. Designed for dedicated automotive enthusiasts, this set is crucial for properly mounting an aftermarket steering wheel to its hub adapter.

Crafted for durability and a precise fit, each bolt in this set helps maintain optimal steering integrity under all driving conditions. The consistent thread engagement ensures a snug, vibration-free installation, making them a direct and essential replacement or upgrade for your steering wheel mounting hardware.

• Manufacturer Part Number: ADVANSWB2022
• Designed for aftermarket steering wheel applications
• Constructed from durable, high-strength material
• Precision-machined threads for reliable fastening
• Enhanced finish resists corrosion and complements interior aesthetics