Tap size: NF/NC UNF/UNC: Threads per inch: Basic major dia (inches) Basic effective dia (inches) Basic minor dia of ext. threads (inches) Basic minor dia of int. threads (inches)

Choose from our selection of UNC taps, including general purpose taps, tap sets, and more. Same and Next Day Delivery.

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. …

NC (National Coarse) and UNC (Unified National Coarse) are the same. NF (National Fine) and UNF (Unified National Fine) are the same. There are three established Classes of Thread, …

TAP：美制统一螺纹（代号UN，美国、英国、加拿大等国于 二战 后制定的标准，常称之为 英制螺纹）攻牙，此 螺纹公称直径 为1/4吋，每吋（1吋=25.4mm)20牙，粗牙：UNC，细 …

P: Steel: M: Stainless steel: K: Grey cast iron, malleable and spheroidal iron: N: Aluminium and other non-ferrous metal: S: Special, super and titanium alloys

2023年11月28日 · Thread Tap: Thread Size: #4-40 UNC; Class: 2B; Thread Length: 17mm / 0.67 inch; Shank Side Width: 2.5mm / 0.1 inch; Total Length: 51mm / 2.01 inch ; High Speed Steel …

7/8 - 9 UNC : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more

These are general tap recommendations to produce the Class of Thread indicated in average materials when used with reasonable care. However, if the tap specified does not give a …

The tap size chart provides a list of standard size taps, specifying the diameter and thread spacing, for fractional, metric, and screw sizes. The decimal equivalents of the diameters are …