ASME B18.2.1 Hex Bolts

ASME B18.2.1 Hex Bolts comply with American Society of Mechanical Engineers (ASME) standard and use in high tensile bolting in boilers, pressure vessels, valves, pipeline flanges and fittings. ASME B18.2.1 Hex Bolts made of High-Grade Alloy Steel, Mild Steel, Mild Steel and High Tensile Steel. This ASME B18.2.1 standard of Hex bolts ideal for high tension and temperature application. They widely use with a fastener which has equivalent standard or grade. ASTM B18.2.1 Hex Bolts are available in a variety of materials, head height, tolerance, width across the flats, grades, size, design, finishing and many other specifications. ASTM B18.2.1 available in many grades, all of them have unique characteristics and features. Various B18.2.1 grades are suitable for different applications and projects. This American standard ASME B18.2.1 can use in construction and machine assembly.

We also offer ASTM B18.2.1 specification American fasteners including anchor bolts, stud, eye bolt, shoulder bolt, square bolt, hex bolt, lag bolt and elevator bolts. For custom ASTM B18.2.1 Hex Bolts, we strictly follow the client’s specification. We satisfied our customer with our services and high-quality product. Below you can see the common ASTM B18.2.1 grades.

ASME B18.2.1 Hex Bolts

Grade of ASTM B18.2.1

Grade Description
B7 Alloy steel, AISI 4140/4142 quenched and tempered
B8 Class 1 Stainless steel, AISI 304, carbide solution treated
B8M Class 1 Stainless steel, AISI 316, carbide solution treated
B8 Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened
B8M Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened
B16 A heat-treated chromium-molybdenum-vanadium steel for high-pressure, high-temperature service.

Features:

  • Suitable for precise applications.
  • Provide user friendly installation.
  • Ideal for repairs and maintenance.
  • Easily tighten through ratchet or spanner.
  • Bolted joint requires tapped hole or nut.
  • Allow disassemble.
  • Use in small engines.
  • Suitable for machine maintenance and general construction.

Characteristics:

  • Ensure compliance to the BPVC.
  • large fastener head.
  • Also known as Socket Head Cap Screws.
  • Distribute clamping load.
  • ASME B18.2.1 have high tensile strength.
  • Resists corrosion from water, humidity, and oxidizing acids.
  • Withstand shear force.
  • Provide moderate flexibility.

Recommended Fasteners

Bolt Grade Nuts Washers
B7 A194-2H F436
B8 Class 1 A194-8 SS304
B8M Class 1 A194-8M SS316
B8 Class 2 A194-8 SS304
B8M Class 2 A194-8M SS316
We can manufacture and export

ASME B18.2.1 Hex Bolts

as per specifications (custom drawing and samples) for more information please Contact us.