What Are SAE J429 Grade 2, Grade 5, and Grade 8 Bolts Used For?
Fastener Knowledge
A collection of articles about fasteners, covering product types, standards, materials, specifications, terminology, applications, and related topics.
Stainless Steel Carriage Bolts: 304 vs 316 and How to Choose
How to choose 304 or 316 for stainless steel carriage bolts: chloride exposure, what molybdenum does and where 316 stops, plus how to specify grade, property class and nut.
Carriage Bolt vs Hex Bolt: Differences, Strength, and Applications
A carriage bolt's square neck must engage the material to stop it turning; a hex bolt needs a wrench. How to choose, and when one cannot replace the other.
What Is a Carriage Bolt? Design, Names, and Common Uses
A carriage bolt has a domed head, a square neck that stops it turning, and a machine thread with a nut. What it is called, where it works, and what to state when ordering.
How to Install Hammer Drive Anchors in Concrete
Set a hammer drive anchor correctly: confirm the drill diameter and hole depth, clean the hole, seat the body on the fixture, and drive the pin without overdriving.
U-Bolt vs Pipe Clamp: What’s the Difference and Which Should You Use?
A U-bolt is a threaded fastener; a pipe clamp is a product family that often contains one. What actually differs between them, and how to choose for the pipe and the support.
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