The Pietta Black Powder Revolver Screw Kit is manufactured by Pietta for their 1860 Army and 1861 Navy 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(2) #11 - 376 wedge and trigger & bolt spring screw(2) #16 - 1740 shoulder stock screw(1) #9 - 1573 plunger screw(1) #22 - 381 hammer screw(2) #23 - 382 trigger and bolt screw(1) #29 - 3405 front triggerguard screw(4) #30 - 378 rear backstrap and triggerguard screw(1) #35 - 380 mainspring screw(1) #38 - 3700 bottom grip connect screw