A Mushroom Head Square Neck Bolts , a type of fastener consisting of a head and a screw (a cylinder with an external thread), is required to be fitted with a nut for fastening two parts with through holes.
ANSI/ASME B 220.127.116.11M-2005
stainless steel ss316
Standard export packing or According to customer's requirement
regular product is about 5-20days, custom product will according to special requirement