Screw, Slotted Truss Head, 2-56 x 1/8, Stainless Steel; Pkg of 10Fits A-dec Century II control block & Century II needle valve Package of 10Replaces 24V Volt/150 Watt bulbs in older 6300 lightsA-dec and Century are a registered trademark of A-dec, Inc.DCI has no affiliation with A-dec and A-dec has not authorized DCI replacement parts to be used on or in connection with A-dec products.