Lanxri 1/4"-20 Hand-tight Fastener Wing Butterfly Screw Bolt Carbon Steel Zinc Plated (A Packet Of 2) Product Feature Size: 1/4"-20 male thread Overal length: 25.5mm (1 inch) Handtight without any other tools Material: metal, carbon steel zinc plated Product Description Special wing design, increase the lateral bearing surface and makes it eaiser to fasten. Applications: machinery and equipment, electronic equipment, communications equipment, hardware lighting, building bridges, furniture decoration, etc. Net Weight: 8*2 g You Get: 1 x 1/4"-20 Hand-tight Fastener Wing Butterfly Screw Bolt Carbon Steel Zinc Plated (A Packet Of 2) Before you place an order, please provide me with English information to facilitate our delivery and logistics