1/4-20 X 3/8" Socket Cap Screws | Flat Head Hex Socket Drive | Nylon Patch | Alloy Steel Thermal Black Oxide (100 / Pkg.)

Meet the Cap Screws Flat Socket Nylon Patch Alloy Thermal Black Oxide 1/4-20 x 3/8 — a high-strength fastening solution designed for durable, vibration-resistant assemblies. These flat socket cap screws feature a nylon patch for insulating and protecting mating surfaces, paired with a robust alloy body and a corrosion-resistant thermal black oxide finish for reliable performance in challenging environments.

Key Features

• Flat Socket Cap Screw with hex drive for secure tightening in tight or recessed spaces
• Thread size: 1/4-20 UNC with a length of 3/8 inch
• Nylon patch washer provides insulation, vibration damping, and protection for mating surfaces
• Alloy steel body delivers outstanding strength and durability
• Thermal Black Oxide finish offers corrosion resistance and a sleek, uniform appearance

Specifications

• Thread: 1/4-20 UNC
• Length: 3/8 inch
• Head type: Flat Socket Cap (hex drive)
• Finish: Thermal Black Oxide
• Material: Alloy steel with nylon patch

Applications

Ideal for electronics enclosures, machinery assemblies, automotive components, and other projects requiring a secure, reliable fastener that protects delicate surfaces while resisting loosening under vibration. The nylon patch helps seal and insulate between dissimilar materials, reducing galvanic corrosion and wear over time.

To ensure maximum performance, torque to the manufacturer’s recommendations and store in a dry environment to maintain the integrity of the nylon patch and the finish.

Upgrade your toolkit with these dependable cap screws for precise fastening in tight spaces and demanding applications.