- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.345 inches minimum and 0.395 inches maximum
- Fastener Length
- 1.105 inches minimum and 1.135 inches maximum
- Head Style
- PAN
- Head Diameter
- 0.473 inches minimum and 0.492 inches maximum
- Head Height
- 0.162 inches minimum and 0.175 inches maximum
- Grip Diameter
- 0.248 inches minimum and 0.249 inches maximum
- Internal Drive Style
- Cross recess type 1
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.740 inches minimum and 0.760 inches maximum
- Thread Quantity per Inch
- 28
- Special Features
- Note: chromium plate on shank only.
- Material
- Steel comp E4340 overall or steel comp 8740 overall
- Material Document and Classification
- MIL-S-6049 mil spec 1ST material response overall or ams 6322 assn std 2ND material response overall
- Surface Treatment
- Cadmium overall or chromate overall
- Surface Treatment Document and Classification
- QQ-P-0416, type ii, class 2 fed spec 1ST treatment response overall or QQ-P-320, class 2 fed spec 2ND treatment response overall
- Thread Series Designator
- UNJF
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.