Fastenal 1/4″-20 Socket Head Cap Screw – Pick Length & Qty, Black Oxide Alloy Steel, L 3/16″ Hex Drive, ASTM A574. Socket Head Cap screws are ideal for precision work with close tolerances and applications needing a well tooled appearance.
This listing is for 5/16″-18 Socket Head Cap Screws made from Heavy-Duty Alloy Steel with Black Oxide finish. Available in 1/2″ to 2-1/2″ lengthsNote: PT = Partial Thread Diameter : 5/16″Thread Pitch : 18 TPI – UNC / Coarse ThreadLength : Please select from drop down menu above.Drive : 1/4″ Hex Key – Available hereType : Socket Head Cap ScrewMatching Nut & Washers : 5/16″-18 Available hereSystem of Measurement : Standard (Inch / U.S.)Material : Alloy Steel, Black OxideSpecifications : ASTM A574
#4-40 Socket Head Cap Screws. These take a hex / allen key to drive and are made from alloy steel with Thermal Black Oxide coating. Available in 1/8″ to 1″ lengthsPackage quantities available in either 10, 20, 50 and 100 pieces. Diameter : #4Thread Pitch : 40 TPI – UNC / Coarse ThreadLength : Please select from drop down menu above.Drive : 3/32″ Hex Key – Available hereType : Socket Head Cap Screw (SHCS)Matching Nut & Washers : #4-40 – Available hereSystem of Measurement : InchMaterial : Alloy Steel with Thermal Black Oxide CoatingSpecifications : ANSI/ASME B18.3, ASTM A574
1/4″-28 Socket Head Cap Screws. These are new alloy steel and have a Thermal Black Oxide coating. Available in 1/4″ to 2-1/4″ lengths Diameter : 1/4″Thread Pitch : 28 TPI – UNF / Fine ThreadLength : Please select from drop down menu above.Drive : 3/16″ Hex Key – Available hereType : Socket Head Cap Screw, Hex DriveMatching Nut & Washers : 1/4″-28 Available hereSystem of Measurement : Standard (Inch / U.S.) / SAEMaterial : Alloy Steel with Thermal Black Oxide CoatingSpecifications : ASTM A574