HILTI 434444

Hilti Kwik HUS Concrete and Masonry Screw Anchors

Model: KH 1/2" x 4-1/2" | Part Number: 434444

Marka: HILTI

1. Produktua amaitu daview

The Hilti Kwik HUS Concrete and Masonry Screw Anchors are designed for efficient and reliable fastening in various base materials. These carbon steel anchors are electroplated with a minimum of 8 microns of zinc for durability. They are a highly productive solution for medium-duty applications and temporary fastenings, suitable for reduced edge distances and spacing.

Key specifications include a 1/2 inch hole diameter, a total length of 4-1/2 inches (without the anchor head), and an embedment depth of 4-1/4 inches. The anchors feature a hex head configuration and utilize a through-fastening method. They are approved and certified, having been tested and evaluated according to AC 193 for uncracked concrete and qualified under an NQA-1 Nuclear Quality Program.

Hilti Kwik HUS Concrete and Masonry Screw Anchor

Image: A single Hilti Kwik HUS Concrete and Masonry Screw Anchor, made of carbon steel, with a hex head and a threaded shaft designed for concrete and masonry applications. The anchor is silver-grey in color.

2. Segurtasun informazioa

Always prioritize safety when installing Hilti Kwik HUS anchors. Wear appropriate personal protective equipment (PPE) including safety glasses, work gloves, and hearing protection to prevent injury. Ensure the work area is well-lit, clear of obstructions, and free from potential hazards.

Do not use anchors that appear damaged, bent, or corroded. Verify that the base material is suitable for the anchor type and that the intended load does not exceed the anchor's allowable limits. Consult relevant engineering specifications and local building codes for critical applications. Improper installation or use can lead to anchor failure and potential injury.

3. Konfigurazioa eta instalazioa

3.1 Beharrezko tresnak

  • Mailu birakaria zulagailua
  • Carbide drill bit (1/2 inch diameter)
  • Hex socket or wrench (appropriate size for hex head)
  • Wire brush or air pump for hole cleaning
  • Neurtzeko zinta
  • Personal Protective Equipment (PPE): Safety glasses, gloves, hearing protection

3.2 Instalazio-urratsak

  1. Zulatzeko zuloa: Using a rotary hammer drill and a 1/2 inch carbide drill bit, drill a hole into the base material (uncracked concrete, grout-filled CMU blocks, or lightweight concrete over metal deck) to the specified embedment depth of 4-1/4 inches. Ensure the hole is drilled perpendicular to the surface for optimal performance.
  2. Clean Hole: Thoroughly clean the drilled hole to remove all dust and debris. Use a wire brush to scrub the sides of the hole and an air pump or vacuum to remove loose particles. Proper hole cleaning is critical for the anchor to achieve its rated holding power.
  3. Insert Anchor: Manually insert the Hilti Kwik HUS anchor into the cleaned hole until the threads engage with the base material.
  4. Tighten Anchor: Using a hex socket or wrench, tighten the anchor until it is firmly seated and the head is flush with the surface of the base material. Do not overtighten, as this can damage the anchor or the base material, potentially reducing its load capacity.

4. Funtzionamendu-kontuan hartu beharrekoak

Hilti Kwik HUS anchors are designed for reliable performance in specific applications. They are particularly effective for medium-duty fastening and temporary installations where high productivity is desired. The through-fastening design allows for direct installation through the fixture, simplifying the process.

It is crucial to adhere to the recommended edge distances and spacing for anchor placement to ensure the stated allowable loads are achieved. For 4000 psi concrete, the allowable tension load is 3852 lb and the allowable shear load is 3319 lb. Always verify the suitability of the base material and the environmental conditions for the intended application.

5. Mantentzea

Hilti Kwik HUS anchors are generally maintenance-free once properly installed. However, for critical applications or in environments subject to vibration, corrosion, or extreme temperatures, periodic inspection of the fastened elements and the anchors themselves is recommended.

During inspection, check for any signs of loosening, corrosion, cracking in the base material around the anchor, or other visible damage. If an anchor shows signs of distress or failure, it should be replaced immediately. Do not attempt to repair damaged anchors. Anchors that have been removed or subjected to loads exceeding their design capacity should not be reused.

6. Arazoak

6.1 Ohiko arazoak eta irtenbideak

GaiaKausa posibleaIrtenbidea
Anchor not seating properlyHole not deep enough; Hole not clean; Incorrect drill bit sizeVerify hole depth (4-1/4 inches); Clean hole thoroughly; Ensure 1/2 inch drill bit is used
Anchor spinning during tighteningHole drilled too large; Base material too weak or compromisedRedrill a new hole in a different location, ensuring correct drill bit size; Verify base material strength and suitability
Reduced load capacity or premature failureImproper embedment depth; Insufficient edge distance/spacing; Base material not as specified or damagedEnsure correct embedment depth; Adhere to minimum edge distances and spacing as per Hilti guidelines; Confirm base material properties and integrity

7. Zehaztapenak

  • Produktuaren izena: Hilti Kwik HUS Concrete and Masonry Screw Anchors
  • Modelo zenbakia: 434444
  • Marka: HILTI
  • Materiala: Carbon Steel, Electroplated Zinc min 8 Microns
  • Head Configuration: Buru Hex
  • Zuloaren diametroa: 1/2 hazbetekoa
  • Total Length (w/o Anchor Head): 4-1/2 hazbetekoa
  • Kapsulatze-sakonera: 4-1/4 hazbetekoa
  • Type of Fixing: Through Fastening
  • Base Materials: Uncracked concrete, Grout-Filled CMU Blocks, Lightweight Concrete over Metal Deck
  • Allowable Tension Load (4000 psi Concrete): 3852 lb
  • Allowable Shear Load (4000 psi Concrete): 3319 lb
  • Kutxa kopurua: 25
  • Onarpenak/Ziurtagiriak: Tested and evaluated according to AC 193 for uncracked concrete, Qualified under an NQA-1 Nuclear Quality Program

8. Bermea eta Laguntza

For detailed warranty information, technical data sheets, and product support regarding Hilti Kwik HUS Concrete and Masonry Screw Anchors, please refer to the official Hilti website or contact Hilti customer service directly. Hilti provides comprehensive support and resources to ensure proper product selection and application.

Hilti Ofiziala Webgunea: www.hilti.com

Always ensure you are using genuine Hilti products and following recommended installation procedures to maintain product performance and warranty validity. For any questions not covered in this manual, Hilti's technical support team is available to assist.

© 2023 HILTI. All rights reserved. This manual is for informational purposes only and subject to change without notice.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.