4-40 X 3/8″ Socket Cap Screws Flat Head Hex Socket Drive 18/8 Stainless Steel (800 / Pkg.) Hassle-Free Returns

Cap Screws Flat Socket 18/8 Stainless 4-40 x 3/8 are precisely engineered fasteners designed for high-precision assemblies. Made from 18/8 stainless steel (304), these flat socket head cap screws offer excellent corrosion resistance and a clean, professional finish for electronics, machinery, cabinetry, and general hardware projects. The compact 4-40 thread with a 3/8 inch length provides secure, unobtrusive fastening in tight spaces.

Key Features

Material: 18/8 stainless steel for corrosion resistance and durability

Thread size and length: 4-40 thread, 3/8″ length

Head style: Flat socket head for a flush, low-profile appearance

Drive type: Hex socket (Allen) drive for precise tightening

Finish: Natural stainless with a clean, bright finish

Applications: Electronics enclosures, machinery assemblies, robotics, cabinetry, and DIY projects

Specifications

Material: 18/8 stainless steel (304)

Thread size: 4-40

Length: 3/8 inch

Head type: Flat socket head cap screw

Drive type: Hex socket

For best results, use the appropriate hex driver to ensure a secure fit and prevent stripping. These cap screws are a versatile choice for hobbyists and professionals seeking dependable, corrosion-resistant fasteners.