The SCREW-CSK 5/16-18 X 3/8 – 001190026 is a high-quality countersunk machine screw designed for secure fastening where a flush finish is required. Precision-threaded with a 5/16-18 UNC thread pitch and 3/8-inch length, this countersunk head screw provides a strong, reliable connection in assemblies where a recessed head is needed for a clean surface or improved clearance.

Ideal for maintenance, repairs, or assembly of outdoor power equipment, machinery, and fabrication projects, this screw meets common specifications found in commercial and industrial applications.

Key Features

• Countersunk Head (CSK) – Designed to sit flush with the mating surface for a neat, low-profile finish

• Standard Thread Size – 5/16-18 UNC thread for broad compatibility with standard threaded components

• 3/8″ Length – Suited to applications requiring moderate thread engagement

• Durable Construction – Manufactured for strength and reliable fastening performance

• Versatile Use – Suitable for mechanical assemblies, guard fittings, bracket mounting, and more

Technical Specifications

• Part Number: 001190026

• Thread Size: 5/16-18 UNC

• Length: 3/8″ (approx. 9.5 mm)

• Head Type: Countersunk (flat head)

• Drive Type: (Typically Phillips / Torx / Slotted — check your exact spec before assembly)

• Material: (Often steel or plated finish — verify if specific coating is required)

Typical Applications

This countersunk machine screw is commonly found in:

• Engine and equipment covers or guards

• Housing and chassis assemblies

• Brackets, guards, and panel mountings

• Commercial and industrial machinery repair kits

• Outdoor power equipment maintenance

Why Choose This Screw

Using the correct fastener, such as the SCREW-CSK 5/16-18 X 3/8 – 001190026, ensures secure, lasting assemblies and reduces the risk of loosening or damage under vibration and load. Its countersunk profile is perfect for applications where a flush surface is needed for safety and aesthetics.