Button Head Socket Cap Screw
HOLO-KROME/ALLEN Button Head Socket Cap Screw - Overall Length: 1-1/4   Package Qty: 25   DIAMETER & PITCH: 5/8-11 UNC   Key Size: 3/8   Thread Fit: Unified 3A thread fit.

Button Head Socket Cap Screw

Item #: 71-764-086
System of Measurement: Inch
Thread Size: 5/8"-11
Overall Length: 1-1/4"

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Only sold in increments of 25.

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Durable heat treated alloy steel for improved performance


  • Designed for light duty application such as securing guards, covers and ornamental fixtures.
  • Button heads present a pleasing appearance to an assembly.


  • Unified standard threads are Class 3A UNRC and UNRF with Holo-Krome controlled radius roots and radiused run-out.
  • Closely controlled fillet between head and body provides maximum fatigue strength.
  • Inch or metric sizes.
  • UNC: coarse thread series
  • UNF: fine thread series


All Items Sold In Package Quantity Only.
Holo-Krome 64086 5/8"-11 x 1-1/4" Button Head Socket Cap Screws
Product Specifications
System of Measurement Inch
Thread Size 5/8"-11
Overall Length 1-1/4"
Key Size 3/8"
No. of Pieces in Pack 25
Limited Supply 1-1/4"
Diameter_Pitch 5/8"-11 UNC
Drive Size 3/8"
Lining 1-1/4"
Drive Type Hex
Finish Coating Black Oxide
Maximum Operating Temperature 1-1/4"
Meta_HRef 1-1/4"
Head Type Button
Length Under Head 1-1/4"
Neck Radius 1-1/4"
Type Button Head Socket Cap Screw
Material Alloy Steel
Nominal Diameter 1-1/4"
Prop. 65 Yes
Thread Fit Unified 3A
Thread Standard UNC
Tool Material Durable heat treated alloy steel
Weight 0.132 lbs.
Prop 65 Warning Many metalworking products do contain metals that are included in the latest Prop 65 warning. Exposure to the elements can be harmful. May cause cancer and reproductive harm.