1/4"-20 x 2-1/4" Grade 8 Yellow Zinc Finish Hex Cap Screw / THREAD LENGTH: 0.75 INCHES MINIMUM AND 1.00 INCHES MAXIMUM HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 0.156 INCHES NOMINAL WIDTH BETWEEN FLATS: 0.438 INCHES NOMINAL END ITEM IDENTIFICATION: 2320-01-560-4409 PART NAME ASSIGNED BY CONTROLLING AGENCY: SCREW,CAP,HEXAGON HEAD SPECIAL FEATURES: SIZE: 1/4-20X2.25; LENGTH: 2.25 INCHES; GRADE: 8; THREAD SIZE: 20; SURFACE TREATMENT: YELLOW ZINC; DIAMETER: 0.25 INCHES; THREAD TYPE: COARSE; PARTIAL THREAD; WEIGHT: 0.0346; MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL