6-40 X 3/8″ Socket Cap Screws Hex Socket Drive Fine Thread Alloy Steel Thermal Black Oxide (300 / Pkg.) Sale
Original price was: $21.67.$11.27Current price is: $11.27.
For orders under $150.00, a shipping fee of $12.99 applies.
Enhance precision fastening with our Socket Head Cap Screws in Fine Thread, crafted from Alloy Steel and finished in Thermal Black Oxide. The 6-40 thread size with a 3/8″ length delivers strong, compact clamping for a range of applications.
Key Features
Head Style: Socket Head Cap Screw (socket drive)
Thread Type: Fine thread, 6-40
Material: Alloy Steel
Finish: Thermal Black Oxide for corrosion resistance and low glare
Dimensions: 6-40 thread, 3/8″ length
Technical Specifications
Diameter / Thread: #6 (6-40 fine thread)
Length: 3/8 inch
Finish: Thermal Black Oxide
Material: Alloy Steel
Drive: Hex Socket
Usage: Ideal for tight tolerances and compact assemblies
Applications
Designed for high-precision fastening in machinery, automotive components, electronics enclosures, and equipment where secure, reliable responses are essential. The black oxide finish reduces glare and helps conceal fasteners in darker environments.





