PLAIN HEX BOLT UNF
SIZE:7/16" X 5"
Quantity:
Pickup available at Hurrell Way Store
Usually ready in 4 hours
PLAIN HEX BOLT UNF
7/16" X 5"
Hurrell Way Store
Pickup available, usually ready in 4 hours
38A Hurrell Way
Rockingham WA 6168
Australia
SRB - 24/7 Fittings
Pickup currently unavailable
38A Hurrell Way
Rockingham WA 6168
Australia
Plain hex bolts with UNF threads are high-strength fasteners used primarily in heavy-duty machinery, automotive components, and aerospace engineering where precision and vibration resistance are critical.
What "UNF" Means (Unified National Fine)
UNF indicates that the bolt uses an imperial, fine thread pitch system. Compared to standard coarse threads (UNC), UNF bolts have more threads per inch (TPI). This specific thread geometry provides distinct engineering advantages:
- High Vibration Resistance: The shallower thread angle prevents the bolt from backing out or shaking loose in high-vibration environments.
- Greater Tensile Strength: Fine threads leave a larger core diameter area on the bolt shank, allowing it to withstand higher tension and stress forces.
- Fine Adjustment Precision: The high thread density allows for highly precise tightening and micro-adjustments