At BigBoltNut, we specialize in manufacturing high-performance ASME B1.1 fasteners (also known as ANSI B1.1). This Unified Inch Screw Thread Standard plays a crucial role in ensuring precision, compatibility, and strength across a wide range of industrial applications.
What
is ASME B1.1?
ASME
B1.1 is a unified screw thread standard based on inch dimensions. It defines
thread shapes, series, classes, tolerances, and allowances to ensure seamless
compatibility and performance in mechanical assemblies. This standard is
essential for industries requiring precision-engineered screw threads.
Key Thread Series Under ASME B1.1
1.UN (Unified National) – Standard
internal and external thread profiles.
2.Unified National Rounded Root –
Features a rounded root for increased fatigue resistance.
3.UNJ Series – Designed for high-stress
environments with an enlarged root radius for improved fatigue strength.
Thread Series Applications
•UNC (Unified National Coarse) –
Suitable for general industrial applications and similar to ISO metric threads.
•UNF (Unified National Fine) – Higher
thread count, ideal for applications requiring increased tensile stress areas.
ASME Thread Fit Classes
•Class 1A/1B – Loose fit, allows for easy assembly
even with minor thread damage.
•Class 2A/2B – Most commonly used;
offers a balance between performance and ease of installation.
•Class 3A/3B – Not suitable for
applications requiring precision tolerance.
________________________________________
BigBoltNut – ASME B1.1-Compliant Fastener
Solutions
We
produce a wide range of ASME B1.1 threaded fasteners that meet stringent
dimensional and quality standards:
•Stud Bolts –
Available in full thread, double-ended, and reduced shank designs. Made from
carbon steel, alloy steel (Grades 8.8, 10.9, 12.9), and stainless steel (SS304,
SS316, SS316L, B8, B7, L7, 8M, and more).
•Hex Head Bolts
& Screws – Conforming to ASME B18.2.1 specifications.
•Nuts and Washers –
Manufactured to ensure complete ASME compatibility with our bolt range.
Contact
BigBoltNut for bulk export inquiries
and reliable ANSI/ASME B1.1 threaded
fasteners engineered for high-performance applications across the globe.
Source Url: https://www.bigboltnut.com/product/asme-b1-1.html
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