[25 PKG] Hex Head Cap Screws Grade 8 Steel Plain Fine Thread 5/8-18 x 3 1/2"" (PT)

Mutual ScrewSKU: 6356CH8PBB

Price:
Sale price$98.40per 25( $3.94 each)
Pieces 25
Measurement type Inch
Thread size 5/8-18
Diameter 5/8
Length 3-1/2
Material Steel
Grade Grade 8
Finish Plain
Head style Hex
Threads per inch 18
Thread style Partially Threaded
Weight 8.98 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

When strength, precision, and reliability matter in your assemblies, choose our Hex Head Cap Screws made from Grade 8 steel with a plain, uncoated finish. The fine-thread 5/8-18 size paired with a 3 1/2 inch length delivers exceptional clamping power for demanding automotive, machinery, and construction applications. Built for heavy-duty performance, these screws resist loosening under vibration and provide consistent torque in critical joints.

Specifications

  • Material: Grade 8 steel for high-strength performance.
  • Finish: Plain (uncoated) finish.
  • Head style: Hex head for easy driving with standard wrenches or sockets.
  • Thread: Fine thread with 18 threads per inch (5/8" diameter).
  • Length: 3 1/2 inches overall.

Applications

Ideal for heavy-duty assemblies in automotive, industrial equipment, machinery, and construction. The Grade 8 steel construction provides superior tensile strength to handle demanding fastening tasks, while the hex head enables quick, secure installation with common tools.

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If you’re not sure that this product is right for you, give us a call!
800-222-0324

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