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FAQs

F1554 Head Stamping

Does ASTM F1554 require headed anchor bolts to be stamped on the head with the fastener’s grade symbol and manufacturer’s logo?

External Thread Image

External Thread Summary

What is the meaning of thread pitch, major diameter, minor diameter, crest, root, flanks, angle, and run-out in the context of external thread?

Anchor Sleeves and Pull Out Strength

I am an engineer and I am calculating the strength of an anchor bolt for a job that I am designing.  I want to use plastic sleeves on many of the anchor bolts on my project, but I don’t know how these sleeves affect the pull out strength of the anchor bolts.  Is there any information on the subject?

Custom Plastic Anchor Sleeves

My drawing is showing a plastic anchor sleeve that is much longer than the standard sizes that you show on your website.  Is it possible to get a custom plastic sleeve that is made per my job’s requirements?

“FOB”

What does the acronym “FOB” stand for and how does it affect your order?