Thread Pitch Chart - Portland Bolt
Thread series cover designations of diameter/pitch combinations that are measured by the number of threads per inch (TPI) applied to a single diameter. Coarse Thread Series (UNC/UNRC) is the most common designation for general application bolts and nuts. Coarse thread is beneficial, because they are less likely to cross thread, more tolerant in ...
Technical Tools and Information - Portland Bolt
Our suite of comprehensive technical tools is designed specifically to provide engineers, architects, and the construction industry with a one-stop shop for technical fastener information. At Portland Bolt, we understand your profession’s unique challenges and demands, which, is why we’ve developed a range of tools to streamline your workflows, enhance precision in …
Bolt Thread Pitch Series
2024年5月10日 · 8-Thread Series (8UN) The 8-thread series is characterized by 8 threads per inch regardless of diameter and is generally used on diameters 1” and larger. It is primarily used with bolt specifications A193 and A320, where the bolt will be used in high-pressure and/or high temperature joint applications. However, the 8-thread series is also ...
ASTM A193-B7 Thread Pitch - Portland Bolt
2014年10月27日 · Section 12.4.2 of ASTM A962 states that fasteners 1″ and under shall be coarse thread, and those 1-1/8″ & larger shall be 8 thread pitch series, unless otherwise specified. In your situation, you will need to know the thread pitch of the insert, expansion joints, nuts, etc. prior to ordering the bolts and then specify the matching thread ...
Structural Bolts - Portland Bolt
Heavy hex structural bolts are designed for steel-to-steel structural connections. Consequently, they are typically very short. Unless otherwise specified, F3125 structural bolts will have a Unified National Coarse thread pitch. The F3125 Grades A325 and A490 specifications are not intended for general applications, including anchor bolts.
A193 Grade B7 Thread - Portland Bolt
2024年4月3日 · In comparison, A193 Grade B7 heavy hex bolts follow a standard threading formula of 2 times the bolt diameter plus 1/4″ if 6” in length or less or plus 1/2″ if above 6” in length. As with the A325 specification, the A193 Grade B7 bolts can have different thread lengths if needed, but the bolts would have to be specially manufactured.
Bolt Thread Length
2023年6月15日 · Bolts that are longer than 6″ have a thread length of twice the diameter plus 1/2″. For example, a 1/2 x 6 hex bolt will have 1-1/4″ of thread, whereas a 1/2 x 6-1/2 hex bolt will have 1-1/2″ thread. In our experience, most “off the shelf bolts” that are longer than 12″ have 6″ of thread. Structural Bolts
Non-Standard Thread on Structural Bolts - Portland Bolt
2014年10月29日 · In Section 8.1.2 of the A490 specification it states “bolts requiring thread lengths other than those required by this specification shall be ordered under Specification A354 Gr. BD.” So, if you want to put non-standard thread length on an A325 or A490 bolt, the first option is to switch to an A449 or A354 Grade BD bolt, respectively.
Fine Thread Structural Bolts - Portland Bolt
2020年1月8日 · Thread Fit, ASME: 120 ksi Min Tensile Strength (A325) 150 ksi Min Tensile Strength (A490) Type 1: Type 3: Type 1: Type 3: B1.1 UNC 2A
ASTM A563 - Portland Bolt
Nominal Nut Size, in. and Pitch Diametral Allowance, in. Pitch Diameter; Min Max; 0.250 - 20: 0.016: 0.2335: 0.2384: 0.312 - 18