#8-32 x 1/4" Phillips Pan Head Grade 18-8 Stainless Steel Internal Tooth Washer SEMS Machine Screw / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 0.220 INCHES NOMINAL FASTENER LENGTH: 0.220 INCHES NOMINAL HEAD STYLE: C32 PAN HEAD DIAMETER: 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM HEAD HEIGHT: 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM WASHER QUANTITY: 1 INTERNAL DRIVE STYLE: D1 CROSS RECESS TYPE 1 END ITEM IDENTIFICATION: MRAP BUFFALO MK2A2 NOMINAL THREAD DIAMETER: 0.164 INCHES FEATURES PROVIDED: LOCK WASHER THREAD QUANTITY PER INCH: 32 HARDNESS RATING: 40.0 ROCKWELL C MINIMUM OVERALL AND 50.0 ROCKWELL C MAXIMUM PRIMARY WASHER OUTSIDE DIAMETER: 0.327 INCHES MINIMUM AND 0.338 INCHES MAXIMUM PRIMARY WASHER STYLE: G2 FLAT INTERNAL TEETH PRIMARY WASHER MATERIAL THICKNESS: 0.03 INCHES NOMINAL PART NAME ASSIGNED BY CONTROLLING AGENCY: NUM. 8 -32 X 1/4" PHILLIPS PAN HEAD GRADE 18-8 STAINLESS STEEL INTERNAL TOOTH WASHER SEMS SCREW MATERIAL: STEEL COMP 410 PRIMARY WASHER MATERIAL: STEEL PROPERTY CLASS 18.8 FASTENER SURFACE TREATMENT: PASSIVATE OVERALL SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL THREAD SERIES DESIGNATOR: UNC