3/8 - 16 UNC : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more

Unified threads comes in three different classes: UNC threads according ANSI B1.1: Pitch is the distance between screw grooves and is commonly used with inch sized products and specified as threads per inch. Lead is the linear travel the nut makes per one screw revolution. The pitch and lead are equal. Example - Typical designation of an UNC thread

The Unified Thread Standard (UTS) defines a 60° thread form in Inch dimensions as described in the ASME B1.1 standard. It is the North American equivalent of the ISO metric thread system. The UTS serves as the leading standard for bolts, nuts, and a wide variety of other threaded fasteners used in the USA and Canada.

UNC - Unified Coarse Thread chart defines major diameter, pitch diameter and minor diameter of unified inch thread according to ASME standard.

2016年5月16日 · UNC = Unified National Coarse Screw Thread. This is one of three graded series: UNC (Unified National Corase); UNF (Unified National Fine); and UNEF (Unified National Extra Fine). The Nominal Major Diameter and Threads-per-inch (Pitch) are defined by ANSI/ASME B1.1 and are the choices for the customary Unified screws and nuts.

2015年7月2日 · Nominal Size and Threads Per In. In.

2022年5月16日 · UNC threads are unified coarse pitch threads. UNF threads are unified fine pitch threads. Thread fit is a measure of looseness or tightness of mating thread. It is specified to designate the amount of tolerance allowance and installation fit desired. There are three different classes of thread fit that they come in:

2024年2月23日 · Reading both UNC (Unified National Coarse) and UNF (Unified National Fine) thread charts requires understanding the standardized thread specifications for each system. Here’s a guide to interpreting the details in typical UNC and UNF thread charts:

Thread pitch chart for UNC, UNF, UNEF and UN up to 2 inch according to ASME B1.1.

UNC - Unified Coarse Thread. The old definition NC is comparable with the metric thread. The new term UNC is comparable with the ISO metric thread. NC and UNC threads are interchangeable, in an analogous manner like the metric and the …