BLACKHAWK! Bolt Action Wood Screw Type - 1-Inch WS Blued Threaded lock-down plunger with knurled, all-steel plunger knob for maximum performance All steel construction for ultimate ruggedness and durability Finished to match fine blued or stainless firearms Lock-down swivel set 1-inch blued 1-Inch Blued Precision machined and assembled to exacting tolerances Made entirely in the USA from premium steel LOK-DOWN Swivel Set Wood screw forend base and wood screw rear base