The Sleeve Anchor with Hex Bolt (commonly referred to as a “Hex Head Sleeve Anchor” or “Masonry Bolt”) is a high-performance expansion fastener designed for applications where a clean, finished profile is required. Unlike traditional stud anchors that leave a threaded rod protruding from the wall, the Sleeve Anchor with Hex Bolt features a solid hex head that sits flush against the fixture, making it the preferred choice for installing handrails, stadium seating, and racking systems where safety and aesthetics are paramount.

Product Overview: Our Sleeve Anchor with Hex Bolt is precision-engineered from Carbon Steel and treated with Yellow Zinc Plating for enhanced corrosion resistance. The full-length expansion sleeve ensures maximum surface contact with the hole walls, allowing for secure fastening in concrete, solid brick, and dense blocks.

Sleeve Anchor with Hex Bolt Specifications

Product Name	Sleeve Anchor with Hex Bolt / Hex Head Expansion Bolt
Head Style	Hexagon Bolt Head (Standard DIN 933 style)
Material	Carbon Steel (Grade 4.8 / 8.8)
Finish	Yellow Zinc Plated (Passivated)
Feature	Pre-assembled with Bolt and Washer

Engineering Insight: Hex Bolt vs. Hex Nut Type

Why choose the Sleeve Anchor with Hex Bolt over the standard Nut type?

Safety & Aesthetics: In the “Hex Nut” version, the threaded stud sticks out past the nut. If installed on a floor or a handrail, this protruding stud can be a trip hazard or snag clothing. The Hex Bolt version finishes with a smooth bolt head, eliminating this risk.
Removability: With the Sleeve Anchor with Hex Bolt, you can unscrew the bolt completely and remove the fixture (e.g., a machine) for servicing, leaving the sleeve in the floor. You can then put the machine back and re-tighten the bolt.

For more details on anchoring technology, please refer to the Anchor bolt entry on Wikipedia.

Installation Guide

Drill: Drill a hole of the same diameter as the anchor sleeve (e.g., 12mm bit for M10 anchor).
Insert: Insert the Sleeve Anchor with Hex Bolt through the fixture and into the hole.
Tighten: Use a wrench or socket to tighten the hex bolt head.
Torque: As you turn the bolt, it pulls the bottom cone up, expanding the sleeve against the masonry. Tighten to the recommended torque value.

Frequently Asked Questions (FAQ)

Q: Can I replace the bolt with a longer one?
A: Yes, but you must ensure the thread pitch and grade match. The cone nut at the bottom must also be retrieved if it falls deeper into the hole.

Q: Is it suitable for hollow brick?
A: Sleeve anchors have better expansion than wedge anchors, making them acceptable for solid brick and some dense blocks. However, for hollow bricks, we recommend chemical anchors or specific hollow wall anchors.