UNC and UNF - Unified Inch Screw Threads ANSI/ASME B1.1 Unified National Thread - UNC Coarse series and UNF Fine series Sep 18, 2016 UNF and UNC are the two main categories of the Unified Thread Standard used in the United States. For a given nominal outside diameter of a screw , there are Fine and Coarse thread densities (thread pitches), measured in Threads Per Inch (TPI). Hex Head Bolts available in UNC national coarse thread, diameters above one inch are typically specified 8 threads per inch (tpi). Heavy Hex Bolts - Structural Heavy hex structural bolts are designed for steel-to-steel structural connections.

Bolt UNC acronym meaning defined here. What does UNC mean in Bolt ? Top UNC acronym related to defence: Unified National Coarse UNC = American Standard (unified course thread) It is a bolt that has 13 threads per inch. which would be a 1/2 in in diameter bolt which has a unc of 13 Titan, Superior Bolting Solutions. Thread Count (TPI) Explained - TPI stands for Threads Per Inch which is simply a count of the number of threads per inch measured along the length of a fastener.This description is …

Unified screw threads standard series are UNC , UNF, UNEF, UN-4, UN-6, UN-8, UN-12, UN-16, UN-20, UN-28 and UN-32 . Thread pitch chart for standard series up to 2 inch is given below [Source: Ref-1]. For Unified screw thread size and tolerance calculations, use Unified Screw … Offers a large inventory of cap screws, hex cap screws, bolts , and other industrial fasteners. A worldwide industrial fastener supply Toggle Bolts ; Toggle Wings; Wall Dog Light Duty Anchors; Wedge Anchors; Bolts . Carriage Bolts ; Hex Lag Screws; Hex Bolts ; Structural Bolts ; Hex Bolts - Metric; Hanger Bolts ; Elevator Bolts ; Drill Bits Insert Bits. Insert Bits; Tamper Resistant Insert Bits; Insert Bit Holders Nut Setters; Hanger Bolt Drivers;