What is the working principle of self-tapping screws? Let’s discuss this with Wotu Fasteners.
As the name suggests, self-tapping screws are screws that can tap their own threads. Regular screws require pre-drilled holes to be screwed in. Self-tapping screws tap their own threads as they are screwed in. To achieve this self-tapping, these screws are usually pointed, making it easier for them to penetrate the object being screwed in.
Hebei Wotu Fasteners Manufacturing Co., Ltd. uses imported and domestically sourced raw materials from large steel mills. Our production equipment is from Taiwan, and we have a complete testing process and equipment. We operate under a modern enterprise system and strictly manage our operations according to the ISO9001:2015 quality system. The company uses “Wotu” as its registered trademark.
DIN 931-style half-thread and DIN 933-style full-thread hex bolts should not be selected from diameter and overall length alone. The practical choice depends on the joint stack, required grip, location of the thread transition, available nut engagement, mating hardware, material or property requirement, coating system and governing product specification. A half-thread bolt is not automatically […]
A bolt manufacturer should be evaluated against a defined joint, drawing and acceptance plan—not a product list or unit price alone. Buyers need to verify whether the supplier can manufacture the required geometry, control material and heat-treatment requirements where applicable, manage threads and coatings as one dimensional system, inspect critical characteristics, preserve batch traceability and […]
