This 7/16-20 x 2 Hex Cap Screw is made of Grade 5 steel and has a zinc coating for corrosion resistance
This 3/8-16 x 4 1/2 Hex Machine Bolt is made of steel and has a galvanized finish for corrosion resistance
45 x 8 DIN 965 & ISO 7046 Metric Phillips Flat Machine Screw is a full thread screw with a black oxide and oil finish
#8 Medium Split Lock Washer Black Oxide is a versatile and durable washer designed to prevent loosening of threaded fasteners due to vibration or shock
while the coarse thread ensures a secure hold
4-40 x 5/16 Phillips Pan Split Lock & Narrow Flat Washer Sems Full Thrd 18-8 Stainless Steel M2 This 7/16-20 x 2 HexThese 4 40 x 5 16 Phillips pan head split lock and narrow flat washer sems full thread screws are made of 18 8 stainless steel. They have a Phillips drive, a pan head, a split lock washer, a narrow flat washer, and a full thread. They are designed for use in a variety of applications, including metal, plastic, and wood. They are corrosion resistant and have a high strength to weight ratio.