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
