AIRCRAFT SPRUCE SPECIALTY AN4-20A Undrilled Bolt

( Brand: Aircraft Spruce Specialty ), ( Manufacturer Part Number: AN4-20A ), ( Part Type: Bolt )

Review AIRCRAFT SPRUCE SPECIALTY Qty And Undrilled Bolt

Aircraft Spruce Specialty AN4-20A Undrilled Bolt

The Aircraft Spruce Specialty AN4-20A Undrilled Bolt is a high-quality fastener designed specifically for use in aviation applications. This bolt, manufactured from SAE 303 stainless steel, offers exceptional strength and durability, ensuring reliable performance in the demanding conditions of aviation.

Measuring 0.375 inches in diameter and 1.5 inches in length, this undrilled bolt is suitable for various aircraft structures and assemblies where a standard drilled bolt may not be required. The hex head provides a secure grip for application and removal, while the undrilled design allows for easy tapering or counterboring during installation.

This AN4-20A bolt is subjected to rigorous testing to meet the stringent requirements of FAA-PMA and FAA-STC approvals. Each bolt undergoes non-destructive inspection (NDI) to ensure that it meets the highest standards for dimensional accuracy, material properties, and fatigue strength.

1. SAE 303 stainless steel construction for superior strength and durability.

2. Hex head design for secure grip during installation and removal.

3. Undrilled design for easy tapering or counterboring.

4. Meets FAA-PMA and FAA-STC approvals.

5. Rigorously tested for dimensional accuracy, material properties, and fatigue strength.

The Aircraft Spruce Specialty AN4-20A Undrilled Bolt is an essential component for aircraft repair and modification projects, providing the confidence and reliability needed to ensure safe and efficient aircraft operation.

Aircraft Spruce Specialty AN4-20A undrilled bolts are commonly used in aircraft construction and repair due to their high-strength properties. Here are some pros and cons of buying these bolts:

1. High-strength: AN4-20A bolts are made from high-strength alloys, making them ideal for use in aircraft structures where strength and durability are essential.

2. Precision manufacturing: These bolts undergo rigorous manufacturing processes to ensure they meet tight tolerances and specifications, which is crucial for aircraft safety.

3. Widely used: AN4-20A bolts are widely used in the aviation industry, making them easily available and interchangeable with other bolts of the same type.

4. Long life: Due to their high-strength material and precision manufacturing, these bolts have a long life and can withstand the rigors of aircraft usage.

1. Cost: AN4-20A bolts are more expensive than standard bolts due to their high-strength alloy and precision manufacturing.

2. Availability: These bolts may not be readily available from local hardware stores or online retailers, making it necessary to order them from specialized aviation suppliers.

3. Handling and installation: Due to their high-strength properties, AN4-20A bolts require special handling and installation methods to ensure they are not damaged or stripped during use.

In conclusion, AN4-20A undrilled bolts offer several advantages for aircraft construction and repair, including high strength, precision manufacturing, and long life. However, they come with some disadvantages, such as cost, limited availability, and special handling requirements.

If you are in the aviation industry and require high-strength bolts for your aircraft, then the advantages of AN4-20A bolts far outweigh the disadvantages. It is recommended to order these bolts from reputable aviation suppliers to ensure you receive high-quality products that meet the necessary specifications. If you are not in the aviation industry, then standard bolts may be a more cost-effective and readily available option for your needs.

Details:

You'll receive 5 AN4-20A Undrilled Bolts. Came from my neighbors garage clean out.

part #: an420a price

• $6.50

specifications aviationpar:

• brand: Aircraft Spruce Specialty
• mpn: An4-20a
• part type: Bolt

seller aviationpar:

• city: Calais, Vermont
• # reviews: 2293
• rating: 100.0%

general aviationpar:

• condition: New
• Parts Accessories > Aviation Parts Accessories > Parts

returns aviationpar:

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

offer aviationpar:

• started: September 27, 2025
• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0

payments aviationpar:

• other
• wallet: Paypal
• credit card: Diners-club

shipping aviationpar:

• service: USPS Ground Advantage
• cost: $4.89
• type: Calculated
• class: Standard
• transit: 5-11 Days
• carrier: USPS

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