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5/16-18 UNC x 3/8 Inch x 5/8 Inch Socket Countersunk Shoulder Screws - Stainless Steel (A2) 5/16-18 UNC x 3/8 Inch x 5/8 Inch Socket Countersunk Shoulder Screws - Stainless Steel (A2) (pack of 1)

Accu Product Code (APC): STR63038C10

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5/16-18 UNC x 3/8 Inch x 5/8 Inch Socket Countersunk Shoulder Screws - Stainless Steel (A2) 5/16-18 UNC x 3/8 Inch x 5/8 Inch Socket Countersunk Shoulder Screws - Stainless Steel (A2) (pack of 1)

Accu Product Code (APC): STR63038C10

Key Features

Shoulder Diameter (d): 3/8 Inch
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5/16-18 UNC x 3/8 Inch x 5/8 Inch Socket Countersunk Shoulder Screws - Stainless Steel (A2) Description

The 5/16-18 UNC x 3/8 Inch x 5/8 Inch Socket Countersunk Shoulder Screws - Stainless Steel (A2) has the following features:

15/64 Inch Head Length (H)
Not Standardised Manufacturing Standard
1/2 Inch Thread Length (E)
5/8 Inch Shoulder Length (L)
Hex Socket Drive Type
Stainless Steel (A2) Material
ASTM A582 (18-8 SS) Material Specification
Natural Finish
18 TPI Thread Pitch
Imperial Metric or Imperial?
5/16-18 UNC Thread Size
3/4 Inch Head Diameter (D)
82 Degrees Countersunk Angle (CA)
7/32 Inch Socket Size (J)
+/-0.005 inch Shoulder Length Tolerance
3/8 Inch Shoulder Diameter (SD)
-0.002/-0.004 inch Shoulder Diameter (SD) Tolerance
3A Thread Class

Discover more about the Imperial Socket Countersunk Shoulder Screws range.

Imperial Socket Countersunk Shoulder Screws are precision-engineered fasteners designed to provide a flush finish in assemblies while offering a durable shoulder for alignment and load distribution. The countersunk head ensures the screw sits level with or below the surface, enhancing both functionality and aesthetics in high-precision projects.

How Imperial Socket Countersunk Shoulder Screws Work

These screws feature a shoulder that acts as a bearing surface, providing consistent alignment and stability in applications where movement or rotational components are involved. The countersunk design allows the screw head to integrate seamlessly into the assembly, reducing protrusions and improving the overall finish. The socket drive offers a reliable method for applying torque, ensuring a secure and accurate fastening.

The Materials Imperial Socket Countersunk Shoulder Screws Are Made From

These screws are manufactured from A2 Stainless Steel, a high-performance material known for its excellent corrosion resistance and durability. This makes them suitable for a wide range of environments, including those exposed to moisture, temperature changes, or oxidation.

The Sizes and Types of Imperial Socket Countersunk Shoulder Screws Available

Imperial Socket Countersunk Shoulder Screws are available in thread sizes ranging from 1/4-20 UNC to 10-24 UNC, offering options for both larger and smaller applications. Their versatile shoulder design makes them an ideal choice for precision engineering, industrial machinery and assemblies requiring alignment or rotational support.

FAQs

Q: What Is the Purpose of the Shoulder on These Screws?
A: The shoulder provides a smooth, precise surface for alignment or load-bearing applications. This makes these screws particularly effective in assemblies involving moving parts or components that need to maintain consistent spacing.

Q: Why Choose Countersunk Screws?
A: The countersunk design allows the screw to sit flush with the surface of the material, creating a smooth and clean finish. This is especially useful in applications where protruding fasteners could interfere with functionality or aesthetics.

Q: What Is the Angle of an Imperial Screw Countersink?

A: The standard angle of an imperial screw countersink is 82 degrees, which is commonly used in most imperial applications to ensure the screw head sits flush with the surface. This angle differs from the metric standard, which typically uses a 90-degree countersink. Always confirm the required countersink angle for your specific project to ensure compatibility.

Q: How Do I Find the Length of a Screw?
A: Use our complete guide on How To Measure A Screw like an Engineer!

Shipping Information

Shipping Destinations:

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Weight (100 items):

2.6702961kg

Component History

Product First Available:

Thursday, June 13, 2024

Stock Last Updated:

05:21 AMTuesday, May 20, 2025

Specification Last Updated:

Tuesday, May 20, 2025

Barcodes

APC (Accu Product Code):

STR63038C10

EAN13 (International Article No.):

5054328406636

ASIN (Amazon Stock Identification No.):

ASIN not defined.

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Product Certifications.

Certificate of Conformity Included

RoHS Certified

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Thread Size

Shoulder Diameter (SD)

Shoulder Length (L)

Material

Finish

Countersunk Angle (CA)

Drive Type

Head Diameter (D)

Head Length (H)

Manufacturing Standard

Material Specification

Metric or Imperial?

Shoulder Length Tolerance

Socket Size (J)

Thread Class

Thread Length (E)

Thread Pitch

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5/16-18 UNC x 3/8 Inch x 5/8 Inch Socket Countersunk Shoulder Screws - Stainless Steel (A2) 5/16-18 UNC x 3/8 Inch x 5/8 Inch Socket Countersunk Shoulder Screws - Stainless Steel (A2) (pack of 1)

5/16-18 UNC x 3/8 Inch x 5/8 Inch Socket Countersunk Shoulder Screws - Stainless Steel (A2) 5/16-18 UNC x 3/8 Inch x 5/8 Inch Socket Countersunk Shoulder Screws - Stainless Steel (A2) (pack of 1)

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