Authentic [1000 BULK] Flange Bolts Serrated Hex Washer 5/16-18 X 1 1/4

Flange Bolts Serrated Hex Washer 5/16-18 X 1 1/4 delivers secure, vibration-resistant fastening for metal-to-metal assemblies. This flange bolt features a built-in serrated hex washer that distributes clamping force and resists loosening in demanding applications.

Designed for quick, reliable installation in automotive, machinery, and equipment projects, these bolts provide a robust bearing surface and a clean, flush appearance with the flange head.

Specifications

Thread size: 5/16-18

Length: 1 1/4 in

Head: Flange with serrated hex washer

Benefits

Flange head offers a larger bearing surface for even load distribution

Serrated washer helps prevent loosening under vibration

Built-in washer eliminates the need for separate components

Suitable for a range of metal-to-metal fastening applications

Applications

Automotive assemblies and chassis work

Machinery and equipment mounting

Frame construction and panel installations

Choose these Flange Bolts Serrated Hex Washer 5/16-18 x 1 1/4 for dependable performance where fast, secure fastening matters.