It has a hexagonal drive at one end and a cup-shaped indentation at the other end

this screw comes in a box of 1000 for your convenience

they provide increased strength and durability — guaranteed to last

1 1/4-7 x 4 A325 Type 1 Heavy Hex Bolt Hot Dipped Galvanized (30)

1-8 x 1 1/2 Socket Set Screw Cup Point 18-8 (A2) Stainless Steel

1-8 x 9 A325 Type 1 Heavy Hex Bolt Plain Domestic (USA) - Bulk Keg (50) Square Bugle-Head Decking Screws Dacrotized It has a hexagonal driveThis 1 8 x 9 A325 Type 1 Heavy Hex Bolt is domestically produced in the USA for superior quality. This 50 pack comes in a bulk keg for easy storage and transportation. This heavy duty bolt is designed to provide maximum strength and durability.