3m Ear Plugs,Corded,Bullet,33dB,PK200 311-1250

Hex Head Lag Screw, Material Steel, Finish Hot Dipped Galvanized, Screw Size 3/8 In., Fastener Length 3 in, Threads per Inch 7, Thread Style Partially Threaded, Minimum Thread Length 1 51/64 in, Dimensional Standards ASME B18.2.1, Pack Size Small, System of Measurement Inch, Drive External Hex, Drive Size 9/16 in, Head Height 0.25 in, Head Style Hex, Head Width 0.388 in, Package Quantity 50