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

1 1/8-7 x 3 1/2

Experience durable

5/8-11 x 2 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

these bolts are designed for heavy-duty applications and feature a plain finish

3/8-16 x 2 1/2 Socket Head Cap Screws Thermal Black Oxide Alloy Steel Domestic USA - Bulk (500) Phillips Flat Particle Board Screws Plain and Lubed It has a hexagonal drive3 8 16 x 2 1 2 Socket Head Cap Screws Thermal Black Oxide Alloy Steel Domestic USA Bulk (500) Socket Cap Screws with Thermal Black Oxide finish are made in the USA from durable alloy steel for superior strength and reliability. Featuring a hex drive and corrosion resistant coating, ideal for high performance and structural applications.