The stem sealing ring has strong air tightness
10 x 3030 Series Angle Brackets
or four 18650 batteries parallel encapsulation
Package Content: 1 x Analog Ammeter without Pulse
1/4-20x1-1/4" Flat Head Socket Cap Screws, 10.9 Grade Carbon Steel, 50PCS 35x80mm(W*L) The stem sealing ring hasDescription: [Material] Made of 10. 9 grade carbon steel, it has high strength, rust resistance, oxidation resistance, and corrosion resistance, which can ensure long term use. [Advantage] Hexagonal socket head type, uniform force is not easy to slip, easy to use. Suitable for replacing old bolts at any time. [Application] Widely used in woodworking and DIY jobs, the repair industry and power industry, aerospace industry, office equipment industry,