40pcs T-Shaped Weld Nuts, 4 Sizes 1/4"-20 5/16"-18 3/8"-16 1/2"-13

Complete KitIncludes 10pcs each of 1/4"-20, 5/16"-18, 3/8"-16, and 1/2"-13 thread weld nut, totaling 40 pieces. Disc diameters range from 12mm to 21mm, rod diameters from 7.8mm to 17.8mm, covering standard SAE dimensions for versatile use. This all-in-one set fulfills daily requirements for automotive repair, metal fabrication, and chassis mounting, ideal for mechanics, fabricators, and DIY users working on steel chassis mounting tab and weld on tabs projects. It supports multiple jobs at once and eliminates mid-project hardware runs, ensuring efficient and uninterrupted workflow. | Precise DesignFeatures a Tshaped stepped structure ensuring accurate positioning and preventing tilting during welding. It provides stronger torque resistance than standard weld nuts for stable, longlasting installation. Ideal for steel chassis mounting tab, weld on tabs, and tight, hardtoreach spaces where precise alignment is critical. This engineered structure improves stability in automotive, chassis, and metal fabrication applications. | Superior WeldabilityCrafted from heavy-duty, high-strength carbon steel, more durable than low-carbon alternatives. This weld nut delivers excellent conductivity for strong, clean fusion without melting or spattering during welding. CNC precision-machined threads ensure a tight, secure fit that minimizes loosening and stripping, even under high vibration and heavy loads. Unlike ordinary weld nut products, it offers enhanced durability, making it ideal for high-vibration applications like auto suspensions, machinery frames, and steel chassis mounting tab projects. | Wide Application RangeWidely used for vehicle frames, suspension systems, automotive chassis, industrial machinery, furniture casters, shelves, and general metal fabrication projects. It serves as an ideal replacement for standard nuts and welded studs in professional workshops, home repairs, and custom builds. Compatible with steel sheets from 1.5mm to 5mm thick, this versatile set works for both professional shops and DIY garages. One complete set covers most common workshop needs, delivering strong, stable performance across automotive, manufacturing, and household applications. | Welding InstructionsFor clean, secure welds with GuandaooL weld nuts, follow these steps. First, clean the welding surface with a wire brush or sandpaper to remove oil, grease, and rust. Then set your welder to medium current and temperature to avoid burn-through or distortion. Position the nut and apply small tack welds around the base to hold it in place and prevent shifting. After welding, lightly grind the area for a smooth finish. Always work in a well-ventilated space and wear proper safety gear, including welding gloves, goggles, and a face shield.