1、Complete variety, convenient and practical.Stainless steel material, wear resistant and corrosion resistant 2、Comes with a storage box, easy to organize, easy to put in the bag, easy to use 3、Cross drilling screws are mainly used for fixing color steel tiles of steel structure, and can also be used for simple construction of fixing plates 4、Packed in a convenient plastic storage box with large and small compartments for easy storage 5、Stainless steel has excellent anti rust properties to ensure a long lasting effect Item Type: Screws Boxed Material: Stainless Steel Model: 240pcs 410#8 240pcs 410#8 Stainless Steel Cross Countersunk Head Self Drilling Screws: #8 x 1-1/4in 30PCS  #8 x 1-1/2in 30PCS  #8 x 1in 40PCS #8 x 3/4in 40PCS #8 x 5/8in 50PCS #8 x 1/2in 50PCS 240pcs 410#8 Stainless Steel Cross Washer Tail Screw: #8 x 1-1/4in 30PCS #8 x 1-1/2in 30PCS   #8 x 1in 40PCS #8 x 3/4in 40PCS #8 x 5/8in 50PCS #8 x 1/2in 50PCS Purpose: Fastening Connection Between Items 30 x 1-1/4in Screw 30 x 1-1/2in Screw 40 x 1in Screw 40 x 3/4in Screw 50 x 5/8in Screw 50 x 1/2in Screw