38 rows Hex Bolt Identification, Markings and Strength Chart Table Guide. Hex Bolt Identification, Markings and Strength Chart . Additonal information on bolts is located at the bottom of the webpage. Note: Some bolts share identical head identification and have significantly different strengths. 35 rows Nut Compatibility Chart . Nut Compatibility Chart . Grade of Bolt . The availability of A563 … Understanding Fastener Grades and Classes. grade (don't replace a Grade 8 fastener with a Grade 5 or 2). If in doubt, ask a professional for assistance. The chart below summarizes some of heremon . Nuts are marked in several different ways—see Identification Marks for Hex and Heavy Hex Nuts below.

Metric nut grades , identification markings and strength chart to show proof strength and Vickers and Brinell hardness values of metric nuts made of carbon steel and alloy steel. - Hex nuts shall be marked by an indentation on the side or the bearing surface or by an embossment on the chamfer of the hex nut . The appropriate grade of A194 nut will be determined by the chemistry and strength of the fastener grade . The chart below herepatible grade of nut with the specific grade of bolt. Nuts are heavy hex pattern, matching the width across the flats of the bolt head. Nuts are not required to be marked unless specified by the purchaser. When marked, the identification marking shall be the grade letter O, A or B. Properties shown are those of nonplated or noncoated coarse thread hex nuts . Properties shown are those of coarse thread heavy hex nuts . Properties shown are those of coarse thread heavy hex nuts .

US Fasteners, Distributor of Fasteners, Stainless Steel Fasteners, Bolts , Nuts , Washers, Threaded Rod, U Bolts , Machine Screws in Aluminum, Brass, Bronze, See our nut compatibility chart to herepatible heavy hex nut (s) for a specific grade of bolt. Since hot-dip galvanizing typically adds 2.2 to 5 mils of thickness to the threaded portion of a fastener, galvanized heavy hex nuts are tapped herepensate for the corrosion resistant coating on the bolts .