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Fastener Insights

October 19, 2026
What Are SAE J429 Grade 2, Grade 5, and Grade 8 Bolts Used For?
Grade 2, Grade 5 and Grade 8 are divided by the joint, not by the industry. What each grade is used for, what rules it out, and what the order still has to carry.
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October 19, 2026
SAE J429 Grade 2 vs Grade 5 vs Grade 8 Bolts: Strength and Selection
Grade 8 outranks Grade 5 and Grade 2 on strength, but the joint decides which grade is right. How the three grades differ, where each fits, and what changes when one is substituted.
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October 19, 2026
How to Remove Hammer Drive Anchors from Concrete
Hammer drive anchors are set for good, but the fixture, the surface or the hole can still be recovered. The methods, their limits, and the damage each one leaves behind.
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October 18, 2026
What Is SAE J429? Bolt Grades, Scope, and Requirements
J429 fixes a bolt's steel and strength, not its shape. What Grade 2, 5 and 8 actually specify, where the standard stops, and what the order has to add.
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