What is a Grade 2H heavy hex nut?

The grade 2H designation signifies nut formation, including the method of heat treatment, quenching, and temperature range required for tempering. A 2H heavy hex nut is used in high temperatures and greater levels of pressure, with adequate strength and engineering to withstand extreme conditions.

What grade is a 2H nut?

ASTM A194 Grade 2h Nuts are carbon based steel heavy hex nuts. The Sa194-2h Material is a common high strength nut. This specification ASTM A194 Grade 2h Washer is often used in combination with the following standards of fasteners – A193 Grade B7, A325, A490, F1554 Grade 105.

What is 2H material?

ASTM A194 Grade 2H is a standard material specification for high tensile nuts and other internally threaded fasteners, made from carbon steel. Grade 2H nuts can be produced by means of hot forging, cold forging or machining from heat treated bar stock.

What is a Grade A nut?

Grade A Nuts. Strength exceeds Grade 2. ASTM A325. Bolts meet ASTM A325 Type 1 standards for structural steel joints.

What is a grade DH nuts?

Nuts for Structural Applications—Grade DH. These nuts are designed to secure ASTM A325 bolts in structural joints. Also known as heavy hex nuts, they are about 10% wider and taller than standard hex nuts. Black-oxide steel nuts have a dark surface color and are mildly corrosion resistant in dry environments.

What is B7 grade bolt?

Grade B7 is a heat-treated chromium-molybdenum low-alloy steel with minimum tensile strength requirement of 125 ksi (860 Mpa), yield 105 ksi (720 Mpa), and maximum hardness of 35HRC. Boltport uses Alloy Steel AISI 4140 bar stock or forging stock to produce B7 headed and non-headed bolts.

Is grade A the same as Grade 2?

A2. A type of the most common stainless steel grade. It is comparable in strength to grade 2 materials, yet slightly weaker and easy to weld.

What is a heavy hex nut?

Heavy Hex Nuts. Heavy Hex Nuts are washer faced, are slightly larger and thicker than standard hex nuts. The heavy hex pattern is typically used for large diameter and high strength bolts.

What are the dimensions of a heavy hex nut?

Left-hand threaded heavy hex nuts are also available— see Left Hand Nuts. Heavy hex nut size refers to its nominal thread diameter. Typically, sizes range from 1/4″ to about 3 1/2″. Size is specified in inches, usually fractional rather than decimal. Table 1 lists width across flats and across corners, and thickness.

What are hex nut dimensions?

Standard hex nuts come with 7/16-inch basic thickness, 27/32 inch wide across its corners and 3/4 inch wide across flats. If you are going to use a heavy nut, they will have a 31/64-inch basic thickness, 63/64 inch wide across its corners and 7/8 inch wide across flats. There are many other hex nut dimensions that are available.