The Pietta 1858 Remington Black Powder Revolver Screw Kit is manufactured by Pietta for their 1858 Remington models. These parts are not guaranteed to fit older Pietta models, other manufacturer's guns, or original firearms. All screws included are blued steel. Refer to the full view schematic picture labeled with reference numbers for screw location. Features(1) #19 - 450 hand screw(1) #28 - 448 loading lever screw(1) #29 - 451 trigger screw(1) #30 - 453 hammer screw(1) #31 - 454 grip screw(1) #33 - 376 trigger & bolt spring screw(1) #34 - 3405 front triggerguard screw(1) #35 - 378 mainspring screw