TRB RC 4-40 x 3/8 Hard Alloy Steel Socket Head Cap Screw (25) Exceeds Grade 8
TRB RC 4-40 x 3/8" ( SHC ) Socket Head Cap Screws, 25pcs Hardened Alloy Steel, Exceeds Grade 8. Ideal for precision assembly work with close tolerances and applications needing a well tooled appearance. Supplies greater tensile strength than equivalent sizes of Grade-5 or Grade-8 he x head cap screws while requiring less surface area or counter-bore since the fastener is internally wrenched. Specifications: Unit of Measure / Inch Material / Alloy Steel Grade / ASME 18.3 Tensile Strength / 180,000 PSI Yeild Strength / 162,000 PSI Hardness / HRC 39 min Head Type / Socket Cap Drive Type / Hex Socket Thread & Pitch Size (inch) / #4-40 Length (inch) / 3/8" Color / Black Length Measurement Type / Length Under Head Hex Key Size (inch) / 3/32"