The thread plate for special screws is different from the standard thread plate. Since the special screws are non-standard screws, Ningbo fastener manufacturers belong to non-standard screws, so the thread plate used is likely to be customized. Naturally, it is generally available for purchase. If your place is not too remote, it is very easy to buy it in the screw manufacturing industry base. The whole process of rolling special screws is divided into two steps, which will be explained gradually below:

1. First replace the previous thread board, and then replace the customized special-shaped thread board.

2. Gradually adjust; after the thread rolling plate is installed, the adjustment should be done well. The adjustment time is very long. Generally, it takes one or two hours for professional technicians to adjust.

3. Gradually produce and manufacture; it can be manufactured after adjustment.

(1) Pre-embedded screws are mainly used for suspension training of air-conditioning copper pipes, water pipes, electric pipes, suspended ceilings, etc. Steel structure bolts are fixed wholesale.

(2) Twisted small flat head non-standard screws can be used on cement concrete, walls and porous bricks to fix sanitary ware.

(3) Internal non-standard screws with internal teeth are used for fixing natural marble, water pipes, electric pipes and angle steel.

(4) Waterproof casing type non-standard screws are mainly used for the fixing of sound insulation boards and bathroom accessories.

(5) Non-standard screws with external force and internal teeth are mainly used for water pipes, electric pipes, hanging pipes of central air conditioners, and various angle steels and channel steels.

(6) Twisted waterproof casing non-standard screws are used to fix lighting, light steel keel partitions and bathroom accessories.

(7) Hollow non-standard screws, suitable for fixing the door frame, cabinet frame, facilities of the shower room and its wall accessories.

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