heavy hex nuts hickness heavy hex jam nuts hex nuts with specified proof loads less than 150,000 psi and all hex jam nuts hex nuts with specified proof loads equal to 150,000 psi and greater basic max min max min basic max min basic max max max 1/4 .2500 1/2 0.500 0.488 0.577 0.556 15/64 0.25 0.21 11/64 0.188 0.017 0.011

heavy hex bolt material and grades : astm a193 grade b16 incoloy 925 astm a453 grade f660 a/b/c/d en 10269 1.7709, 1.4980, 1.7218, 1.4913, 1.4923 & 1.1181 astm a540 b23 class1/2/3/4/5 zeron 100 fg / flt / sa astm a193/ a320 grade b8, b8m class 1&2 astm f3125 a325/a325m, a490/a490m f436 type 3 hex bolt coating and finishes :

18914 East Industrial Parkway | New Caney, TX 77357 | www.fastorq.com | Main: 281.449.6466 | 1.800.231.1075 Standard Stud & Heavy Hex Nut Specifications

heavy hex bolt material and grades : astm a193 grade b16 incoloy 925 astm a453 grade f660 a/b/c/d en 10269 1.7709, 1.4980, 1.7218, 1.4913, 1.4923 & 1.1181 astm a540 b23 class1/2/3/4/5 zeron 100 fg / flt / sa astm a193/ a320 grade b8, b8m class 1&2 astm f3125 a325/a325m, a490/a490m f436 type 3 hex bolt coating and finishes :

Earnest Machine Products line of Grade C heavy hex nuts are made to the dimensional requirements of ANSI B18.2.2 for Heavy Hex Nuts and the material and strength requirements of ASTM A563. 1/16 Approx sizes above 7/16" may be washer faced up to 7/16" are double chamfered * Grade C (three circumferential lines 120° apart & manufacturers ID) Grade C

A six-sided internally threaded fastener which is both thicker and wider across the flats than a same-sized finished hex nut, made of 18- 8 stainless steel. Nuts in sizes 7/16 & smaller shall be double chamfered. Larger sizes are either double chamfered or chamfered on top with a washer faced bearing surface. Applications/ Advantages

The nut thickness shall be the overall distance, measured parallel to the axis of nut, from the top of the nut to the bearing surface and shall include the thickness of the washer face where provided Standard Metric Hex Nuts, Types Styles 1 and 2 per. ANSI/ASME B18.2.4.1M and B18.2.4.2M All dimensions are in millimeters.

18914 East Industrial Parkway | New Caney, TX 77357 | www.fastorq.com | Main: 281.449.6466 | 1.800.231.1075 Standard Stud & Heavy Hex Nut Specifications

1-117, Heavy Hex Nuts, ASTM A194 Heavy Hex Nuts, Designed to meet ASTM A194, these heavy hex nuts are slightly larger and thicker than a standard hex nut. Because of their secure hold and durability, they are usually used for large diameter and high strength bolt applications.

over-tapping of the nut to provide assembly. 3. ASTM A194 2H heavy hex nuts may be substituted for ASTM A563 DH heavy hex nuts. 4. Grade 2 requirements for sizes 1/4 through 3/4 in apply only to bolts and screws 6 in. and shorter in lengths. For bolts and screws longer than 6 in. Grade 1 requirements shall apply. 307A 307B A325 A449 BC BD A490

A 563 Grade-DH3 Heavy Hex Nut Marking. Description: A six-sided internally threaded fastener that is both wider and thicker than the same-sized finished hex nut. Heavy hex nuts that are 7/16" and smaller are doubled chamfered. Sizes larger than 7/16" can be either doubled chamfered or chamfered on top with a washer faced bearing surface