Description
Engineered for maximum strength and reliability, these Hex Head Cap Screws are crafted from Grade 8 steel with a plain (uncoated) finish and a fine thread. Sized at 1-1/8 inches in diameter and 6-1/2 inches long with a 1-1/8-12 thread, they deliver superior torque handling for demanding, high-torque assemblies.
Hex Head Cap Screws Grade 8 Steel — Plain Finish, Fine Thread 1-1/8-12 x 6-1/2
- Material: Grade 8 steel for exceptional strength and durability
- Finish: Plain (uncoated) finish for flexible use with coatings or paints as needed
- Thread: Fine thread 1-1/8-12 for precise engagement and improved vibration resistance
- Size: 1-1/8" diameter, 6-1/2" length
- Head style: Hex head for reliable torque transfer with standard tools
- Applications: Ideal for heavy-duty machinery, automotive assemblies, and industrial equipment
Why choose Grade 8 hex cap screws?
Grade 8 steel provides high tensile strength and stiffness, delivering secure clamping under heavy loads. The plain finish keeps the fastener versatile for coatings and paint applications, while the fine thread ensures smooth engagement in precision assemblies.
Applications
Widely used in automotive, agricultural, industrial machinery, and fabrication projects where high torque, reliability, and durable fastening are essential.
Installation tips
- Align holes carefully and start by hand to prevent cross-threading.
- Use a suitable lubricant to reduce galling on fine threads.
- Tighten to the specified torque with a calibrated tool for optimal performance.
Can We Help?
If you’re not sure that this product is right for you, give us a call!
800-222-0324

