Threaded Insert Nuts For Metal

Another major category of Threaded Insert Nuts For Metal is the self-tapping type. Its outer wall is equipped with cutting grooves or extrusion teeth, which can tap out matching threads in the metal prefabricated holes and lock them. It is especially suitable for single-sided installation scenarios where riveting cannot be performed from the back, such as box columns and pipe ends. According to ISO The 2702 standard conducts a screwing torque test on M6 specifications on a 3.0 mm aluminum plate. The peak installation torque is about 12 Nm, and the corresponding torsional strength is more than 35 Nm, ensuring that the insert itself will not slip circumferentially when the subsequent bolts are tightened. At the same time, the threaded fit formed by the self-tapping process has been verified by dynamic load and can withstand a reciprocating loosening torque of 15 Nm without failure. It is suitable for connection points that require frequent opening and closing, such as outdoor distribution box door hinges and communication cabinet grounding bolts.

The surface of this type of insert nut is usually treated with zinc-nickel alloy plating and sealant. According to the ASTM B117 neutral salt spray test, it can withstand one thousand hours without red rust formation, which is nearly five times higher than ordinary zinc plating, greatly enhancing its durability in humid industrial environments and coastal facilities. The root of the internal thread is strengthened by cold extrusion, and its Vickers hardness is not less than 450 according to GB/T 3098.15, which significantly improves the resistance to plastic deformation of the thread bearing surface, so that the change in the pitch diameter of the thread is still less than 0.01 mm after repeated screwing in and out ten times, ensuring dimensional stability in long-term use. Combined with its compact outer diameter design, this insert not only solves the problem of insufficient connection strength of thin-walled metals, but also achieves the dual goals of rapid assembly and long-term anti-loosening in elevator guide rail brackets and automation equipment guide rail fixings.

Acquire customers' design blueprints. Alternatively, generate fresh ones per provided prototypes together with technical standards.

Two stakeholders confirm those blueprints, substrate material, exterior finishes, plus any further specifics.

Offer cost estimation, verify correct purchase amount, then list every pertinent element

for example settlement arrangements,  commercial conditions, packing styles, plus so forth.

Manufacture products strictly after initial designs along with prototypes.

After ultimate quality verification,  wrap products thoroughly, then dispatch them toward customers.

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