- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 1.205 inches minimum and 1.282 inches maximum
- Fastener Length
- 1.265 inches minimum and 1.312 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.281 inches nominal
- Width Between Flats
- 0.552 inches minimum and 0.564 inches maximum
- Hole Diameter
- 0.070 inches nominal
- Nominal Thread Diameter
- 0.375 inches
- Hole Quantity
- 6
- Hole Type
- Drilled
- Features Provided
- Finished head
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell C minimum overall and 40.0 rockwell C maximum overall
- Hole Configuration Style
- Hexagon longitudinal hole
- Material
- Steel comp 4140 overall or steel comp 4130 overall
- Material Document and Classification
- MIL-S-5626 mil spec 1ST material response overall or MIL-S-6758 mil spec 2ND material response overall
- Surface Treatment
- Cadmium overall and chromate overall
- Surface Treatment Document and Classification
- QQ-P-416, TY2CL3 fed spec all treatment responses 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.