HILLMAN 381766 Cotter Pin Metallics 008236112269 3/16 2-INCH

( Brand: Hillman ), ( Manufacturer Part Number: 381766 ), ( Color: Metallics ), ( UPC: 008236112269 )

Review HILLMAN 3/16 2-inch Cotter Pin Extended Inches Metallics

The **Hillman 381766 3/16" to 2-inch Cotter Pin** is a precision-engineered fastening solution designed to secure split pins, retaining rings, and other mechanical assemblies with unmatched reliability and durability. Crafted from high-quality **metallic alloy**, this cotter pin features a robust, spring-tempered construction that ensures consistent performance under varying loads and environmental conditions, making it ideal for automotive, industrial, and heavy-duty applications where precision and security are critical. The pin s **graduated taper** allows for a snug, interference fit within drilled or slotted holes, preventing unwanted movement or loosening over time, while its **smooth, polished finish** minimizes friction and wear on surrounding components. Available in a range of standard lengths, this particular model spans **3/16-inch to 2 inches**, accommodating a wide variety of shaft diameters and assembly requirements, from compact engine components to larger machinery parts. Whether used in suspension systems, steering linkages, or other high-stress applications, the Hillman cotter pin delivers a secure, long-lasting connection that resists vibration, corrosion, and fatigue, ensuring optimal performance in demanding operational environments. Its **universal compatibility** with standard cotter pin holes and retaining mechanisms makes it a versatile choice for mechanics, engineers, and DIY enthusiasts seeking a dependable fastening solution.

**Pros and Cons of Buying Hillman 381766 (3/16" x 2" Cotter Pin, Metallic)**

1. **High-Quality Material** Hillman is a well-known brand in the automotive and industrial supply industry, known for producing durable, high-grade fasteners. The metallic finish suggests it is made from steel or stainless steel, which resists corrosion better than zinc-plated or coated alternatives.

2. **Precision Manufacturing** Cotter pins from reputable suppliers like Hillman are typically precision-cut and heat-treated to ensure proper fit and longevity. This reduces the risk of breakage or loosening over time.

3. **Compatibility** The 3/16" x 2" size is a standard dimension for many automotive applications, including suspension components, steering systems, and axle assemblies. This makes it widely compatible with aftermarket and OEM parts.

4. **Reliability in Critical Applications** Cotter pins are often used in high-stress areas where failure could lead to safety hazards. A quality pin like this one minimizes the risk of unexpected detachment.

5. **Easy Installation & Removal** The split design allows for simple installation by bending the ends around a bolt or pin shaft, and removal is straightforward with pliers.

6. **Cost-Effective for Bulk Use** While individual pins may seem inexpensive, buying in bulk (if available) can be cost-effective for regular maintenance or repairs.

7. **Corrosion Resistance (if stainless)** If the pin is made from stainless steel (rather than carbon steel with a metallic finish), it will resist rust and extend its service life, especially in wet or harsh environments.

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1. **Potential for Counterfeit Products** Some online sellers may offer generic or counterfeit cotter pins labeled as Hillman. These could be made from lower-quality materials, leading to premature failure or poor performance.

2. **Limited Availability of Stainless Steel Option** The "metallic" finish may not guarantee stainless steel. If corrosion resistance is critical, you may need to verify the exact material composition or opt for a separately labeled stainless steel cotter pin.

3. **Size and Fit Variability** While 3/16" x 2" is standard, slight variations in manufacturing tolerances could cause fit issues in some applications. Always test the pin in your specific setup before full installation.

4. **No Specialized Features** Unlike some high-end cotter pins with serrated edges or special coatings, this standard pin lacks additional grip or anti-vibration features, which may be necessary in extreme conditions.

5. **Dependence on Supplier Reputation** Purchasing from an untrusted seller could result in receiving damaged, bent, or incorrectly sized pins. Always buy from authorized distributors or well-reviewed suppliers.

6. **Disposal Considerations** Cotter pins are small and can be lost or misplaced easily. If not stored properly, they may require frequent replacement.

7. **No Warranty or Return Policy (if bought from unregulated sources)** Some online marketplaces lack return policies, so if the pins fail prematurely, you may have no recourse.

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The **Hillman 381766 (3/16" x 2" cotter pin, metallic)** is a solid choice for general automotive and mechanical applications where reliability and durability are important. Its reputation for quality, standard sizing, and corrosion resistance (if stainless) make it a practical option for most users. However, buyers should ensure they purchase from a trusted source to avoid counterfeit or substandard products. If corrosion resistance is a major concern, verifying the exact material (e.g., stainless steel) is advisable.

For **most DIY mechanics, repair shops, or automotive enthusiasts**, this cotter pin is a **recommended purchase** due to its balance of affordability, availability, and performance. If working on high-performance or safety-critical systems, consider supplementing it with additional locking mechanisms (e.g., cotter pin locks or thread-locking compounds) for extra security.

Buy from an **authorized Hillman distributor or a well-reviewed online retailer** (e.g., RockAuto, Amazon with verified seller ratings, or local automotive supply stores). If possible, confirm the material is stainless steel for long-term corrosion protection. Store pins in a dry, organized container to prevent loss or damage. For critical applications, pair with other locking methods for added safety.

Details:

A cotter pin secures two items with the use of a common hole. From The Brand Name: Hillman Group. Place the cotter pin in hole, bulbous head will stop from moving all way through, bend open tips to secure place. Depending on the application, various sizes and finishes are available.From Manufacturers cotter pin secures two items with use of a common hole.

Hillman 381766 3/16 x 2-Inch Cotter Pin Extended 2 inches, Metallics. One Prong Of The Cotter Pin Is Extended For Easy Insertion.

part #: 381766 prices

• $19.19-$22.59

specifications chippershredde:

• brand: Hillman
• mpn: 381766
• color: Metallics
• upc: 008236112269

payments chippershredde:

• credit card: Visa
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returns chippershredde:

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

general chippershredde:

• condition: New
• Yard, Garden Outdoor Living > Outdoor Power Equipment > Chippers, Shredders Mulchers

shipping chippershredde:

• type: Fixed
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• transit: 3-5 Days
• service: Standard
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seller chippershredde:

• rating: 99.9%
• # reviews: 1532
• city: New York, New York

offer chippershredde:

• options: Ship-to-home
• started: May 19, 2026
• sold: 0
• quantity: 2
• availability: In Stock

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