• THREAD SERIES DESIGNATOR : UNC
  • NOMINAL THREAD DIAMETER : 0.112 INCHES
  • THREAD QUANTITY PER INCH : 40
  • THREAD CLASS : 2A​​​​​​​
  • THREAD DIRECTION : RIGHT-HAND​​​​​​​
  • THREAD LENGTH : 0.325 INCHES MINIMUM AND 0.375 INCHES MAXIMUM​​​​​​​
  • FASTENER LENGTH : 0.375 INCHES NOMINAL​​​​​​​
  • SCREW MATERIAL : STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316​​​​​​​
  • SCREW MATERIAL DOCUMENT AND CLASSIFICATION : 66 FED STD ALL MATERIAL RESPONSES​​​​​​​
  • SCREW SURFACE TREATMENT : PASSIVATE​​​​​​​
  • SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION : QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE​​​​​​​
  • MINIMUM TENSILE STRENGTH : 80000 POUNDS PER SQUARE INCH
  • HEAD STYLE : A33 FILLISTER​​​​​​​​​​​​​​ 
  • HEAD DIAMETER : 0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM
  • HEAD HEIGHT : 0.072 INCHES MINIMUM AND 0.079 INCHES MAXIMUM​​​​​​​
  • INTERNAL DRIVE STYLE : B10 SLOT​​​​​​​
  • HEAD HOLE CONFIGURATION STYLE : C8 ROUND​​​​​​​
  • HOLE QUANTITY : 1​​​​​​​
  • HOLE DIAMETER : 0.037 INCHES NOMINAL​​​​​​​

Machine Screw

  • Fastener Length: 3/8", Hole Diameter: 1/32", Thread: 4-40, Thread Length: 3/8"