Description
Engineered for heavy-duty fastening, these Hex Head Cap Screws are Grade 8 steel with a plain finish. The 1-1/8-7 x 3-1/2 size delivers high tensile strength and robust performance in demanding applications.
Key specifications
- Material: Grade 8 alloy steel
- Finish: Plain (unplated)
- Head type: Hex head with external drive
- Thread size: 1-1/8-7 UNC
- Length: 3-1/2 inches
Why choose Grade 8 plain hex screws
Grade 8 fasteners deliver superior tensile strength and reliable clamping in high-stress assemblies. The plain finish provides a straightforward, clean look and is ideal for applications where plating is unnecessary or where coating is applied separately after installation. Use in dry, non-corrosive environments or plan for protective coatings if exposure to moisture or chemicals is expected.
Ideal applications
- Heavy machinery and equipment mounting
- Automotive and trailer assemblies
- Structural connections and high-load fastening
- Industrial machinery beds, frames, and supports
For best results, ensure proper torque according to standard practice for Grade 8 bolts, and inspect threads for wear before installation to maintain maximum endorsement of clamping force and safety in demanding environments.
Can We Help?
If you’re not sure that this product is right for you, give us a call!
800-222-0324