Tekz 45235 SAE Hex Head Screw Assortment - 160 Piece USS Thread (20) 1/4 inch x 1/4 inch-20, (10)1/4 inch x 3/8 inch-20, (20) 5/16 inch x 3/8 inch-18, (10) 5/16 inch x 1/2 inch-18 Sae thread (15) 1/8 inch x 3/16 inch-40, (10) 3/16 inch x 1/4 inch-24, (15) 5/32 inch x 3/16 inch-32 , (15) 1/4 inch x 1/4 inch-28 Convenient re-sealable plastic case