ITEM: 13/8 12 UNF Hex Socket Cap Screw MSC INDUSTRIAL. MANUFACTURER: MSC INDUSTRIAL. BRAND: MSC Industrial. MANUFACTURER PART: 581953P. 13/8 12 UNF Hex Socket Cap Screw Alloy Steel, Black Oxide, Fully Threaded, 3 Length Under Head (MOQ1, Pkg Qty1)CATEGORIES: Maintenance, Repair and Operational (MRO) Supplies. Bolts, Screws & Cap Screws. Socket Cap Screws. N/A. TOTAL RECYCLED CONTENT: 10.00%. POSTCONSUMER RECYCLED CONTENT: 1.00%. KEYWORDS: MSC IndustrialBolts, Screws & Cap ScrewsSocket Cap ScrewsN/AN/A.