BBI Socket Set Screw, Measurement System: Imperial, #4-40 Thread, 1/8 in Length, Cup Point, Alloy Steel, Plain/Thermal Black Oxide, Hex Drive, UNC Thread, 0.061 in Point, 45-53 HRC Hardness, 0.05 in Drive

ITEM FEATURES:

• Used against hardened shaft or where frequent adjustment are needed and where no locking point is required