5/16-18 x 5/8" Button Head Socket Cap Screws Black Oxide Alloy Steel Qty 50

Item Specifications

• UPC 842176122403
• Package Quantity 50
• Size 5/16"-18 x 5/8"
• Head Style Button
• Head Diameter 0.547"
• Head Height 0.166"
• Drive Style Allen Hex Key
• Drive Size 3/16"
• Inch / Metric Inch
• Thread Size 5/16"-18
• Thread Dia. 0.3125"
• Thread Class Class 3A
• Coarse / Fine Coarse
• Threads Per Inch (TPI) 18
• Thread Coverage Full Thread
• Length 5/8"
• Thread Length Dec. 0.625"
• Material Alloy Steel
• Grade Grade 8
• Finish Black Oxide
• Specification 1 ASME : B18.3
• Specification 2 ASTM : F835
• Tensile Strength 120,000 PSI
• Core Hardness Rockwell C37
• Item Type Socket Screws
• Product Code 5150-4490
• SKU 201135