#4-40 x 3/4" ASTM F837 Hex Drive Grade 18-8 Stainless Steel Socket Cap Screw - HoloKrome USA / THREAD CLASS: 3A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 0.720 INCHES MINIMUM AND 0.750 INCHES MAXIMUM FASTENER LENGTH: 0.720 INCHES MINIMUM AND 0.750 INCHES MAXIMUM HEAD STYLE: C48 FLAT FILLISTER HEAD DIAMETER: 0.176 INCHES MINIMUM AND 0.183 INCHES MAXIMUM HEAD HEIGHT: 0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: 01-579-6850 NOMINAL THREAD DIAMETER: 0.112 INCHES WIDTH ACROSS FLATS: 0.0937 INCHES MINIMUM AND 0.0952 INCHES MAXIMUM THREAD QUANTITY PER INCH: 40 MATERIAL: STEEL CORROSION RESISTING OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: ASTM F837 SINGLE MATERIAL RESPONSE OVERALL SURFACE TREATMENT: PASSIVATE OVERALL SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL THREAD SERIES DESIGNATOR: UNRC