5-40 UNC x 5/8 Inch Phillips Countersunk Screws (ASME B18.6.3) - Black Stainless Steel (A2) 5-40 UNC x 5/8 Inch Phillips Countersunk Screws (ASME B18.6.3) - Black Stainless Steel (A2) (pack of 1000)

Accu Product Code (APC): SIK-5-40-5/8-A2-BL

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5-40 UNC x 5/8 Inch Phillips Countersunk Screws (ASME B18.6.3) - Black Stainless Steel (A2) 5-40 UNC x 5/8 Inch Phillips Countersunk Screws (ASME B18.6.3) - Black Stainless Steel (A2) (pack of 1000)

Accu Product Code (APC): SIK-5-40-5/8-A2-BL

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Accu Product Code (APC): SIK-5-40-5/8-A2-BL
Thread Size: 5-40 UNC
Length (L): 5/8 inch
Head Diameter (D): 0.237 inch Tolerance: +0/-0.041 inch
Material: Stainless Steel - (A2)
Finish: Matte Black
Countersunk Angle (CA): 80-82 Degrees
Drive: PH2
Head Length (H): 0.075 inch
Manufacturing Standard: ASME B18.6.3
Material Family: Stainless Steel
Pitch: 40 TPI
System of Measurement: Imperial
Weight per 100 Units: 91 g

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5-40 UNC x 5/8 Inch Phillips Countersunk Screws (ASME B18.6.3) - Black Stainless Steel (A2) Description

The 5-40 UNC x 5/8 Inch Phillips Countersunk Screws (ASME B18.6.3) - Black Stainless Steel (A2) has the following features:

Countersunk Angle (CA): 80-82 Degrees
Drive: PH2
Matte Black Finish
Head Diameter (D): 0.237 inch
Head Diameter (D) Tolerance: +0/-0.041 inch
Head Length (H): 0.075 inch
Length (L): 5/8 inch
Manufacturing Standard: ASME B18.6.3
Stainless Steel - (A2)
Stainless Steel Material Family
Pitch: 40 TPI
System of Measurement: Imperial
Thread Size: 5-40 UNC

Discover more about the Imperial Phillips Countersunk Screws range.

Imperial Phillips Countersunk Screws are precision-engineered components specifically designed to provide a smooth, flush finish. The term 'Imperial' refers to the screw's sizing standard, which follows the Imperial system, prevalent in the United States and specific manufacturing industries. Characterised by their countersunk head design and Phillips drive, these screws are the go-to choice for applications that require a clean, smooth surface after installation.

How Imperial Phillips Countersunk Screws Work

These screws work by interfacing with a corresponding imperial thread, typically in a pre-tapped hole or a nut. Their countersunk design allows the screw to sit flush with or beneath the level of the surrounding material, creating a neat finish. The Phillips drive facilitates precision torque application, minimising the risk of slippage or over-tightening, making them a popular choice in many precision engineering tasks.

What Material Imperial Phillips Countersunk Screws Do You Offer?

Our range of Imperial Phillips Countersunk Screws are made from robust stainless steel, including A2 and marine grade A4. These materials are chosen based on durability, resistance to wear and tear, and application-specific requirements such as environmental conditions, load-bearing capacity, and resistance to corrosion or high temperatures.

What Size and Type Imperial Phillips Countersunk Screws are Available

Accu provides Imperial Phillips Countersunk Screws in an array of sizes, ranging from smaller #0-80 screws for intricate applications, up to larger 12-24 sizes for heavy-duty tasks. As for lengths, our range spans between 1/8th inch to 6 inch long. Furthermore, our extensive selection of materials and finishes cater to specific requirements such as resistance to corrosion, increased strength, or aesthetic appeal.

Fortify your Imperial Phillips Countersunk Screws with Accu’s advanced thread-locking patches. Whether it’s AccuLock Threadlocker for standard security, Anu-Lok 180 for extra resilience, or Precote 80 for elite performance, your fasteners stay locked. Opt for AccuBlack chemical blackening for a stealthy, low-glare aesthetic with a premium edge.

FAQs

Q: What are the advantages of using Imperial Phillips Countersunk Screws?

A: Their countersunk design ensures a smooth, flush finish, making them ideal for applications that require a clean surface. The Phillips drive design allows controlled torque application, minimising the chance of slippage or over-tightening.

Q: Can these screws be used in outdoor applications?

A: Yes, both of our A2 and A4 stainless steel variants offer excellent corrosion resistance, making them ideal for outdoor use.

Q: What tools are required to install these screws?

A: You will need a Phillips head screwdriver for installation. Ensure the driver size matches the screw head size to avoid damage and enable correct torque application.

Q: How can I choose the right screw size for my needs?

A: The correct screw size depends on your application's specific requirements, such as the material you're working with, the load the screw will need to bear, and the size of pre-existing holes or nuts. For advice, speak directly with one of our team via live chat or by email.

Q: Is there a minimum order quantity for Imperial Phillips Countersunk Screws?

A: No, at Accu, we believe in flexibility. You can purchase as few as one screw or as many as thousands, depending on your project requirements.

Shipping Information

Shipping Destinations:

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Weight (100 items):

0.091kg

Component History

Product First Available:

Friday, January 22, 2016

Stock Last Updated:

10:08 PMWednesday, June 3, 2026

Specification Last Updated:

Wednesday, June 3, 2026

Barcodes

APC (Accu Product Code):

SIK-5-40-5/8-A2-BL

EAN13 (International Article No.):

5057196261895

ASIN (Amazon Stock Identification No.):

ASIN not defined.

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5-40 UNC x 5/8 Inch Phillips Countersunk Screws (ASME B18.6.3) - Black Stainless Steel (A2) 5-40 UNC x 5/8 Inch Phillips Countersunk Screws (ASME B18.6.3) - Black Stainless Steel (A2) (pack of 1000)

5-40 UNC x 5/8 Inch Phillips Countersunk Screws (ASME B18.6.3) - Black Stainless Steel (A2) 5-40 UNC x 5/8 Inch Phillips Countersunk Screws (ASME B18.6.3) - Black Stainless Steel (A2) (pack of 1000)

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