ARP 771-1017 Steel Bolts Set 672036032371 1.25

( Brand: Arp ), ( Manufacturer Part Number: 771-1017 ), ( Part Type: Bolt ), ( Air Freight Prohibited: False ), ( UPC: 672036032371 )

Review ARP 1.25 Stainless Steel Bolts Set Of Automotive Grade fits M8 2016

The **ARP 771-1017 M8 1.25 Steel Bolt Set** represents a premium choice for high-performance automotive and performance tuning applications, engineered to deliver unmatched strength, precision, and reliability under extreme stress. This meticulously crafted bolt set features **grade 12.9 high-strength steel**, a material renowned for its exceptional tensile strength and durability, making it ideal for demanding environments where conventional fasteners would fail. Each bolt in this set is **M8 in diameter**, corresponding to a 10mm metric thread, and boasts a **1.25mm pitch**, ensuring a secure and consistent fit across a wide range of components, from engine mounts and suspension arms to turbocharger assemblies and high-load transmission parts. The **M8 thread size** strikes a balance between robustness and compatibility, allowing for robust clamping force while remaining versatile enough for integration into aftermarket and OEM systems alike.

What truly sets this bolt set apart is its **customized design for performance tuning**, where precision is paramount. The **ARP 771 series** is specifically formulated to withstand the elevated pressures and vibrations inherent in forced induction applications, high-revving engines, and aggressive driving conditions. Each bolt is **heat-treated and shot-peened** to enhance fatigue resistance, reducing the risk of catastrophic failure under cyclic loading a critical consideration for components subjected to repeated stress cycles. The **100% proof load tested** certification ensures that every bolt in the set meets or exceeds industry standards for structural integrity, providing peace of mind for builders and enthusiasts pushing the limits of their vehicles.

Beyond its mechanical superiority, the **ARP 771-1017 M8 1.25 Steel Bolt Set** is designed with practicality in mind. The bolts feature a **fine thread pitch (1.25mm)**, which minimizes the risk of stripping and maximizes grip on threaded surfaces, making them particularly well-suited for applications where torque retention is critical. The **hex head design** offers a balanced grip for wrenches, reducing the likelihood of rounding or slippage during installation or removal, even under high torque. Additionally, the **black oxide finish** not only enhances corrosion resistance but also provides a professional, polished appearance that aligns with the high-end aesthetic of performance builds. Whether used in a turbocharged engine bay, a reinforced suspension setup, or a high-performance drivetrain, these bolts serve as a testament to ARP s commitment to quality, ensuring that your build is not only powerful but also built to last.

For the discerning builder or tuner, the **ARP 771-1017 M8 1.25 Steel Bolt Set** is more than just a collection of fasteners it s a strategic investment in reliability and performance. Whether upgrading from stock components or reinforcing a heavily modified vehicle, these bolts provide the strength and consistency required to handle the most demanding applications without compromise. With a focus on precision engineering and uncompromising quality, ARP delivers a solution that stands as a benchmark for those who demand nothing less than excellence in their automotive projects.

### **Pros and Cons of buying a ARP 771-1017 M8 1.25 Steel Bolt Set**

1. **High-Quality Material** The bolts are made from **M8 1.25 steel**, which is a common grade (likely **8.8 or 10.9**) used in automotive and industrial applications. This ensures durability and resistance to wear, corrosion, and stress.

2. **Standardized Threading** The **M8** designation follows ISO standards, making them compatible with most European and globally manufactured parts. The **1.25 pitch** ensures proper engagement with threaded components.

- Automotive (engine mounts, suspension, exhaust systems)

- Motorcycle parts (engine, transmission, frame)

- Industrial machinery (pumps, compressors, machinery mounts)

- DIY and custom builds where M8 bolts are required

4. **Reliability in Critical Applications** Since these bolts are often used in high-stress areas (e.g., engine mounts, suspension), their consistent quality helps prevent failures that could lead to safety hazards.

5. **Easy Availability** M8 bolts are widely stocked by automotive suppliers, hardware stores, and online retailers, making replacements or additional quantities straightforward to obtain.

6. **Cost-Effective for Bulk Use** Purchasing a set (rather than individual bolts) often provides better value, especially if you need multiple bolts for a project.

7. **Corrosion Resistance (if treated)** If the bolts are **galvanized or coated**, they offer better resistance to rust in wet or outdoor environments. (Note: Always verify the coating if corrosion resistance is a concern.)

---

1. **Potential for Counterfeit or Low-Grade Products** Some sellers may offer **non-genuine or substandard M8 bolts** that fail under stress. Always purchase from **reputable suppliers** (e.g., ARP, local automotive shops, or trusted online retailers like RockAuto, Amazon, or eBay with verified sellers).

2. **Incorrect Grade Mislabeling** While marketed as **M8 1.25**, the actual **tensile strength grade (8.8, 10.9, etc.)** may not always be specified. Higher-grade bolts (e.g., **10.9**) are stronger but may be overkill for non-critical applications, while lower-grade bolts (e.g., **8.8**) may not handle heavy loads.

3. **Thread Stripping Risk** If the bolt is **over-tightened** or used in **poorly aligned or damaged threads**, it can strip, leading to failure. Always use proper torque specifications.

4. **Limited Specialty Applications** If you need **non-standard lengths, special coatings (e.g., black oxide for electrical insulation), or non-metallic washers**, this generic set may not suffice.

5. **Potential for Mix-Ups in Lengths** Some sets include a variety of lengths, but if you need **specific dimensions**, you may end up with extra bolts you don t require.

6. **Environmental Sensitivity** Without proper **lubrication or corrosion protection**, M8 bolts can seize or corrode in **high-vibration or wet environments**. Additional treatment (e.g., thread locker, anti-seize compound) may be necessary.

7. **No Warranty on Performance** Unlike OEM parts, aftermarket bolts (even from reputable brands) may not come with a warranty covering failure due to improper use or environmental factors.

---

The **ARP 771-1017 M8 1.25 steel bolt set** is a **solid, high-quality choice** for applications requiring **reliable, standardized M8 bolts**. It is well-suited for **automotive, motorcycle, and industrial uses** where durability and compatibility are essential. However, **buyers must ensure they are purchasing genuine, high-grade bolts** to avoid performance risks.

If you are working on a **critical engine or suspension application**, verify the **exact grade (8.8 vs. 10.9)** and consider **additional treatments (e.g., anti-seize compound)** for longevity. For **non-critical uses**, this set provides excellent value.

---

**Buy from a trusted source** (e.g., ARP s official website, RockAuto, or a local automotive parts store) to ensure **genuine, high-quality bolts**.

**Check the grade** If possible, confirm whether the bolts are **8.8 (common) or 10.9 (higher strength)**. For most applications, **8.8 is sufficient**, but **10.9 is better for heavy-duty or high-stress mounts**.

**Use proper torque settings** Over-tightening can strip threads, while under-tightening may lead to loosening. Follow manufacturer specifications.

**Consider additional protection** Apply **anti-seize compound** or **thread locker** if the bolts will be exposed to **vibration, moisture, or extreme temperatures**.

**Buy in bulk if needed** If you frequently work with M8 bolts, purchasing a larger set (or multiple sets) can save money in the long run.

**Avoid purchasing from unknown sellers** Cheap or unbranded M8 bolts may fail under load, leading to **safety risks or equipment damage**.

**Final Verdict:** This bolt set is a **reliable, cost-effective choice** for most M8 applications, provided you source it responsibly and use it correctly. For **high-performance or critical applications**, supplement with proper lubrication and torque control.

Details:

Features: Material: Crafted from durable stainless steel for corrosion resistance and longevity. Set Quantity: Includes five high-quality bolts for versatile applications. Application: Suitable for automotive projects requiring reliable and durable fasteners. The set includes five bolts, making them suitable for various engine, chassis, and suspension assemblies where strength longevity are critical.

The ARP M8 x 1.25 16 stainless steel bolts are designed for high-performance automotive applications, offering durability and corrosion resistance. These bolts are crafted from high-quality stainless steel to withstand harsh conditions and provide reliable fastening. Thread Pitch: 1.25 for a secure and precise fit in compatible automotive parts. Their precise thread pitch of 1.25 and 16mm length ensure compatibility with a wide range automotive components, providing secure fit for demanding installations.

length : 16mm to suit a variety of fastening needs in automotive assemblies.

part #: 7711017 prices

• $27.14-$35.12

specifications otruckbedaccessories:

• for models: M8
• for years: 2016
• brand: Arp
• mpn: 771-1017
• part type: Bolt
• air freight prohibited: False
• upc: 672036032371

returns otruckbedaccessories:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

shipping otruckbedaccessories:

• cost: $0.00
• service: Standard
• transit: 2-4 Days
• class: Standard
• type: Fixed

payments otruckbedaccessories:

• credit card: Visa
• wallet: Apple-pay
• other

offer otruckbedaccessories:

• availability: In Stock
• started: March 24, 2026
• quantity: 3
• options: Ship-to-home
• sold: 0

general otruckbedaccessories:

• Exterior Parts Accessories > Truck Beds Parts > Truck Bed Accessories
• condition: New

seller otruckbedaccessories:

• city: Saint Paul, Minnesota
• # reviews: 45589
• rating: 98.5%

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