Machine Screw Nuts 10 Pack 9074534 Machine Screw Hex Nuts 3/8 Inch-16 Solid Brass Solid Brass Nuts Machine screw nuts, is a subset of finished hex nuts designed for use with machine screws, which are typically much smaller than bolts., Size: 3/8 inch-16 People who viewed this item also viewed 3/8-16 Brass Machine Screw Hex Nuts Qty 100pc $56.76 Free shipping Sponsored Very common and versatile nut Size: 3/8 inch-16 · Very common and versatile nut · Same in design as a standard hex nut, but smaller to accommodate machine screw sizes · Screws onto a machine... They are standard thickness and can be installed with a wrench or socket set. 9/16 - 12 Hex Nut Grade 8 UNC Black Screws onto a machine screw of the same thread size