6-40 x 3/4 Flat Point Alloy Steel Socket Set Screw is intended for bearing against a machined flat, hardened surface, or pre-ground seat.
For 6-40 x 3/4, review the flat point around equipment rebuilds where the original point style must be retained and hubs, brackets, and retained components with prepared flats. The broad end face suits prepared flats, repeated adjustment, and jobs where unnecessary deformation of the mating component would create service problems.
The 6-40 designation supplies the ordering thread form, and the 3/4 in. length should be checked against tapped depth and bearing location. If the screw bears on a shaft flat, verify that the contact location is aligned with the tapped hole. Use the alloy steel callout with the drawing or bill of material, then review the mating surface and operating environment separately.
The UNF series and 40 threads per inch are derived from the thread designation. Flat point geometry is often reviewed where the screw bears on a machined shaft flat, hardened surface, or ground seat. Cold Headers helps keep flat-ended set screw details attached to the size being quoted.
