- Thread Class
- 2A
- Thread Direction
- Right-hand
- Thread Length
- 0.386 inches minimum and 0.446 inches maximum
- Fastener Length
- 1.141 inches minimum and 1.171 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.357 inches nominal
- Grip Diameter
- 0.2540 inches minimum and 0.2550 inches maximum
- Internal Drive Style
- SLOT
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.725 inches minimum and 0.755 inches maximum
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 150000 pounds per square inch
- Hardness Rating
- 33.0 rockwell C minimum overall
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Special Features
- Color yellow, half surface or head
- Material
- Steel comp 4037 overall
- Material Document and Classification
- Aisi assn std single material response overall
- Surface Treatment
- Cadmium overall and chromate overall
- Surface Treatment Document and Classification
- QQ-P-416, ty 2, cl 2 fed spec single treatment response overall
- Thread Series Designator
- UNF
Catalogue data is compiled from public DLA/FLIS sources and is provided for
identification. Availability, condition and certification are confirmed on
quotation. OmniSynk Distribution Services is a stocking distributor.