N2 M-1755 Four (4) Self Tapping Screws/Bolts for Spindles: GY20050, GY20785, 918-0624A, 618-0624, 918-0241, 618-0116, 918-0596C, 918-0430B, 918-0427C, 918-0660B, 918-0596, 918-0430C Dimensions: thread Size: 5/16"-18, thread Length: 1" Warranty: This part shall be free from defects in material and workmanship under normal use and service for three-months from the date of purchase You can return this item (for any reason) if you ask for a return within 30 days of receiving your order and have not installed your product