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Screws are fasteners that are designed to hold objects together by creating a strong mechanical bond. Typically made from materials such as steel, stainless steel, brass, or plastic, screws feature a helical ridge known as a thread that allows them to be driven into materials. They come in various head styles, lengths, and diameters to accommodate different applications and materials.
| Material | Steel, stainless steel, brass, or plastic |
| Standard sizes | From 1/8 inch to 1 inch in diameter |
| Thread type | Coarse, fine, or self-tapping |
| Head styles | Flat, pan, round, hex, or socket |
| Finish | Zinc plated, black oxide, or plain |
| Length range | From 1/4 inch to 6 inches |
When selecting screws, buyers should consider the material and finish based on the environmental conditions and load requirements. It's important to specify the thread type and head style that best suits the application. Additionally, buyers should indicate the required lengths and quantities when requesting a quote, as well as any specific standards or certifications needed for their industry.
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Screws are commonly made from steel, stainless steel, brass, or plastic.
Screw heads can be flat, pan, round, hex, or socket, among others.
Choose based on the thickness of the materials being fastened and the load requirements.
Coarse threads are better for quick assembly, while fine threads provide better grip and are used in precision applications.
Yes, stainless steel or coated screws are suitable for outdoor use due to their corrosion resistance.
Screws can often be reused if they are not damaged and the material they were fastened to is still intact.