[150 PKG] Hex Head Cap Screws Grade 8 Steel Plain Fine Thread 1/2-20 x 4

Mutual ScrewSKU: 5164CH8PBB

Price:
Sale price$139.07per 150( $0.93 each)
Pieces 150
Measurement type Inch
Thread size 1/2-20
Diameter 1/2
Length 4
Material Steel
Grade Grade 8
Finish Plain
Head style Hex
Threads per inch 20
Thread style Partially Threaded
Weight 38.0 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

Shop smarter with Hex Head Cap Screws Grade 8 Steel Plain Fine Thread 1/2-20 x 4. Built from high-strength Grade 8 steel and heat-treated for reliability, these screws deliver outstanding performance in demanding assemblies where strength and precision matter.

Featuring a hex drive and a plain, uncoated finish, they provide a secure, consistent torque transfer in dry or controlled environments. The fine thread (1/2-20) offers improved tapping, pull-out resistance, and smoother engagement in metal-to-metal joints compared to coarser threads.

  • Head style: Hex head for torque with standard wrenches
  • Material: Grade 8 steel, heat-treated for high strength
  • Finish: Plain (uncoated) steel
  • Thread form: Fine thread, 1/2-20
  • Size and length: 1/2 in diameter, 4 in long
  • Applications: Ideal for automotive, machinery, equipment, and heavy-duty assemblies where high-strength fasteners are required

Compatibility and usage tips: Use the correct thread engagement and apply appropriate lubrication or threadlocker as needed for vibration-prone environments. For outdoor or corrosive environments, consider applying a protective coating or using a plated variant to extend service life.

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