Stainless Steel Screws
We offer a wide range of stainless steel screws which are made up of stainless steel material like alloy steel carbon steel, aluminum etc. we are one of the largest manufacturer and seller of screws as our products manufactured by us follow international quality standards and thus meet the versatile requirements of customers. These are finished through polishing for giving smooth surface. These are available in various technical specifications.
Understanding Screw Sizes – Inch Standards
Screws with a diameter smaller than 1/4" have a nominal size indicated by a number (e.g. #8 or #10). 1/4" and larger diameters are shown as inches. The diameter refers to the major diameter, or outside edge, of the threads. If the screw size includes a dash with a number following it, that is the number of threads per inch (tpi). Usually tpi is only shown with machine screws or other fasteners with machine screw threads.
So, a 1/4-20 screw has a 1/4" diameter (.250") with 20 threads per inch.
Sometimes the terms “coarse” (or UNC/Unified Coarse Thread) or “fine” (UNF/Unified Fine Thread) are used to describe the thread. The term does not refer to the quality of the thread but rather to the frequency of threads per inch. “Fine” has more threads per inch than “coarse”.
Specific hole diameters vary according to the materials being fastened. For maximum performance, refer to the performance data and installation instructions for the specific fastener being used. For machine screws in metal, a hole .08" larger than the diameter is standard.