National Aerospace Standard - Fine Thread Steel Socket Head Screw | NAS1351-3-16P

• Thread Direction: Right-Hand
• Thread Length: 0.875 Inches Minimum
• Fastener Length: 0.970 Inches Minimum And 1.000 Inches Maximum
• Head Style: Flat Chamfer
• Head Diameter: 0.303 Inches Minimum And 0.312 Inches Maximum
• Head Height: 0.185 Inches Minimum And 0.190 Inches Maximum
• Internal Drive Style: Hexagon
• Nominal Thread Diameter: 0.190 Inches
• Width Across Flats: 0.156 Inches Minimum And 0.159 Inches Maximum
• Thread Quantity Per Inch: 32
• Minimum Tensile Strength: 180000 Pounds Per Square Inch
• Hardness Rating: 36.0 Rockwell C Minimum Overall And 45.0 Rockwell C Maximum Overall
• Minimum Yield Strength: 155000 Pounds Per Square Inch
• Material: Steel Overall
• Surface Treatment: Cadmium Overall And Chromate Overall
• Surface Treatment Document And Classification: Qq-P-416,Type 2,Class 3 Fed Spec All Treatment Responses Overall
• Thread Series Designator: Unrf
• Specification/Standard Data: 80205-Nas1351 Professional/Industrial Association Standard