Independence Day Shipping Schedule
UPS and the Postal Service will be closed Monday, July 4th. Orders in transit over the holiday, including express orders, may take an additional day to arrive.
Filters: 18 External hex Steel Grade 5 7/8" 5/16" Remove All

5/16"-18 x 7/8", External hex, Grade 5 steel

US Fasteners
Flange bolts

Flange bolts

Flange bolts have a flange on the bottom of the head that distributes the load like a washer.