Comparison : Item # Z740450, Square Head Set Screws Cup Point, National Coarse, Case Hardened (9/16"-12)
Item # Z740455, Square Head Set Screws Cup Point, National Coarse, Case Hardened (9/16"-12)
Item # Z740460, Square Head Set Screws Cup Point, National Coarse, Case Hardened (9/16"-12)
Item # Z740465, Square Head Set Screws Cup Point, National Coarse, Case Hardened (9/16"-12)
Item # Z740470, Square Head Set Screws Cup Point, National Coarse, Case Hardened (9/16"-12)