[THREADED]: Thread Size: 1/4-20; Thread Pitch: 20 TPI Coarse Thread UNC; Thread Coverage: Full , [SIZE] - 0., 43 (11mm) width across flat, 0., 31 (8mm) height. Thread Size: 1/4-20; Thread Pitch: 20 TPI; Package: 100 PCS · Hex Drive Size: 7/16 Allen Hex Drive · Nut Thickness: 0.19 inch; Width from Flat to Flat Good replacement for industrial and construction fasteners also can be an important accessory in your daily life. 304 Hex Nuts 20 Pcs M8 Lock Nuts - Stainless Steel Hex Nuts, Black Finish For Machine & Furniture Fastening, Anti-Loosening 304 Anti-loosening Nuts 100 Pack Lock Nuts Stainless Steel 1/8 In End B Diameter Compression Fittings 1/4 20 Nylon Lock Nuts 10-32 STAINLESS STEEL WAXED LOCK NUT GRADE 304 18 8 1/4-20 Lock Nut 1/4 In Hex Industrial Drill Chucks 1/4-20 Lock Nuts The plastic insert is placed at the end of the nut, and its inner diameter (ID) is slightly smaller than the diameter of the screw. Nut Type, Hex Lock Nut. Material, Steel. Thread Size (Inch), 1/4-20. Material Grade, 2. Height (Inch), 19/64. Width Across Flats (Inch), 7/16 It is a nut with a nylon insert that resists turning. Feature Nylon-insert lock nut, polymer-insert lock nut, or elastic stop nut, is a kind of locknut.