Armpre Machinery Blog

UNIFIED SCREW THREADS (UNC/UNF/UNEF) Thread size chart UNIFIED SCREW THREADS (UNC/UNF/UNEF)The UTS (Unified Thread Standard) is a widely accepted definition for a standard thread form that comes along with allowances, tolerances and labels for screw threads that are most commonly used within the United States and Canada. Currently, the UTS is under the control of […]

UNF Thread size chart   UTS (Unified Thread Standard) is a standard used around the United States and Canada that is used as an identification standard for screws, bolts, and nuts. As there are a number of different types of threads, the UTS standard was developed in order to be used as a specific standard […]

UNC Thread size chart UNC – Unified Coarse Thread  Presently in the manufacturing industry, there are a variety of choices based on types as well as sizes out of which choices can be made according to the circumstance. however, there are specific threads that are usually used based on the particular applications. The UTS (Unites […]

British Standard Fine (BSF) Size Chart British Standard Fine (BSF) In the 19th century, Sir Joseph Whitworth developed a standardized system in order to maintain the standards of screw threads for nuts and bolts. This standard was named as the Whitworth form. The BSW (British Standard Whitworth) system includes two types of threads, that are, […]

British Standard Whitworth (BSW) Coarse Pitch Size Chart British Standard Whitworth (BSW) The British Standard Whitworth (BSW) thread is known as a screw thread profile used for fastening applications in the United Kingdom and many other countries. It was developed by Sir Joseph Whitworth in the middle of the 19th century and was one of the […]

ASTM A193 Standard Bolts Size Chart   Bolts and nuts are tools used in order to connect two or more mechanical parts with each other. ASTM A193 bolts are used to connect ferritic and austenitic stainless steel efficiently. There are many types of A193 bolts such as A193M Hex Head Bolt, A193 Eye Bolt, and […]

ACME Thread General Purpose Size Chart 1. What is ASME/ANSI B1.5 for bolts? he ANSI/ASME B1.5 ACME Screw Threads Standard provides General Purpose ACME, and Centralizing ACME Centralizing Acme threads have limited clearance at the major workpiece diameters of both the internal and external threads and are widely used extensively for feeding screws.  screw rod， Restricted clearance […]

BS 3692 Bolt Size Chart Bolts are mechanical tools used to connect two or more parts with each other. Technically they are mechanical fasteners that come with a nut on them. A joint that is bolted can be disassembled and reassembled easily. This is one of the many reasons bolts are used comparatively more than […]