SEMS Screw

SEMS screws are machine screws with flat washer pre-attached to save users assembly time. Phillips Torx Pan Head Flat Washer SEMS Screw.
pan head phillips drive SEMS screw with flat washer 
Pan head torx drive SEMS screw with flat washer
Stainless Steel SEMS screw with flat washer 
Zinc Plated SEMS screw with flat washer 
Black SEMS screw with flat washer 
M2.5 M3 M3.5 M4,M5,M6 SEMS machine screws
2-56 3-48 4-40 5-40 6-32 8-32 10-32 SEMS screws