Screws are accessory of elevator guide rail. They are usually provided together with guide rail. We can provide screws according to your requirement. Each type of screw matches with a type of guide rail, please refers to the following table:

elevator guide rail	screw
T70-1/B	M12*35
T50/A	M8*25
T75-3/B	M12*35
T89/B	M12*40
T127-2/B	M16*55
T90/B	M12*40
T78/B	M12*35
T114/B	M16*50
T82/B	M12*35
T45/A	M8*25