Fast and secure replacements for corroded J-bolts and tension straps with retrofit anchor bolts by Concrete Anchor Bolts. Call 623-305-3319.

Mini-Pack

$499.00

2pcs – Standard Knife Anchors

Exceeds ACI and ICRI Codes:
Replaces J-Bolts in Wood Structures Worldwide.

Governing Design Criteria

Grade B7 Threaded Rod: 125,000 PSI Tensile Strength

A553 Grade 2 Pin: 184,800 PSI Ultimate Yield Strength

Ultimate Design Capacity: 5,280 LBS Uplift

Meets of Exceeds Allowable Tension Loads of 4,250 for Wedge Anchors up to ¾” with Embedment Depth Up to 6-¾”

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2pcs – Standard Plate Anchors

Exceeds ACI and ICRI Codes:
Tension Tie Straps in Wood Structures Worldwide.

ASTM A193 defines both SI (Metric) and inch-pound units. Grade B7 is a heat-treated chromium-molybdenum (Cr-Mo) alloy steel with minimum tensile strength requirement of 125 ksi, yield 105 ksi, and maximum hardness of 35HRC. Chromium-molybdenum alloy steel (or chrome moly), is an alloy used for high pressure and temperature use. It is used in oil and gas, energy, construction and the automotive industries because of its corrosion resistance and high-temperature and tensile strength.

Frequently Asked Questions

Frequently Asked Questions

Yes. Exceeds ACI standards nationwide, and some cities don’t require a permit at all.

Our clients report pricing bolts at 2 times or more of cost.

Average shipping times for delivery are between 5 and 8 business days.

Yes. Grade B7 rod is a heat-treated chromium-molybdenum low-alloy steel with minimum tensile strength requirement of 125 ksi (860 Mpa), yield 105 ksi (720 Mpa), and maximum hardness of 35HRC.

The J-bolts and Straps corrosion expanding up to 5 times their size in diameter breaking out the concrete foundation walls.