Manufacturer Part Number: S509-M01-F21-H|Drive Type|Material|BrassFor Thread Size|#8Thread Size (mm)|Finish|Zinc-PlatedThread Size (Inch)|Overall Length (Inch)|3/16Thread Standard|Overall Length|0.1875inOverall Length (Decimal Inch)|0.1875Overall Length (mm)|Inside Diameter (mm)|Inside Diameter (Decimal Inch)|0.1710Inside Diameter|Thread Style|Outside Diameter (mm)|Outside Diameter|0.25inOutside Diameter (Inch)|1/4Outside Diameter (Decimal Inch - 4 Decimals)|0.2500Inside Diameter Tolerance|Inside Diameter Tolerance (mm)|Inside Diameter Tolerance (Decimal Inch)|0.000 to 0.010Outside Diameter Tolerance|Retaining Rib Diameter|Material Grade|Thread Spacing|Standards|Thread Length (mm)|Thread Fit Class|Hex Key Size (mm)|Hex Key Size (Inch)|Hex Key Size (Decimal Inch)|Head Height (mm)|Head Height (Decimal Inch)|Tensile Strength|Length Tolerance (mm)|Length (mm)|Full or Partial Threading|Type|Female UnthreadedHead Type|Length (Inch)|Screw Size|#8System Of Measurement|InchFinish Coating|Zinc-PlatedLength Tolerance (Decimal Inch)|-0.005 to 0.005Length Measurement Type|Body Shape|RoundFastener Standard|ASTM B633; QQ-B-626 Comp 22; Type 1Product Service Code|UNSPSC Code|