Screws with cap head, button head with hex drive head. -M10x1.25 x 20mm, left hand thread x 1000pieces -M10x1.25 x 40mm, left hand thread x 1000pieces -M10x1.25 x 20mm, right hand thread x 1000pieces -M10x1.25 x 40mm, right hand thread x 1000pieces Please offer the products in A2 stainless steel or standard steel with black zinc plating.