50Pcs Air Vents 53mm Circular Soffit Vent Stainless Steel 50Pcs, White
[Material] This porcelain white air vent is made of stainless steel, durable, and strong ability to withstand gravity, not only oxidation resistance, but also more beautiful installation effect. [Design] Air Vent hole with honeycomb design, exquisite round holes conform to the breathable design, small round holes can be dust-proof and not easy to block.
M2 Carbon Steel Flat Washer, Black Oxidized Alloy Steel, 4.8 Grade M2*5*0.5
Compared with 65 steel, it has higher strength, hardness, elasticity and hardenability. Fastener Size: M2. Flat washers evenly distribute pressure not only on the nut but also on the head of the fastener.