Drop-In Anchor is a type of fastener used to provide a secure threaded connection in concrete, masonry, or other solid base materials. It is designed to be installed flush with the surface, making it ideal for applications where a clean, finished look is required. Drop-in anchors are commonly used in construction, HVAC, electrical, and mechanical installations.

Key Features of Drop-In Anchors

1. Design:

   • Cylindrical sleeve with internal threads.

   • Expands when a bolt or threaded rod is inserted, creating a secure hold.

2. Material:

   • Typically made of carbon steel, stainless steel, or zinc-plated steel for corrosion resistance.

3. Installation:

   • Requires pre-drilling a hole in the base material.

   • Installed using a setting tool to expand the anchor.

4. Load Capacity:

   • Designed to handle both tensile (pull-out) and shear (side-load) forces.

Applications of Drop-In Anchors

1. Construction:

   • Securing handrails, guardrails, and structural supports.

   • Anchoring machinery or equipment to concrete floors.

2. HVAC and Electrical:

   • Mounting pipe hangers, conduit supports, or ductwork.

3. General Use:

   • Installing threaded rods for suspended ceilings or lighting fixtures.

   • Fastening fixtures to concrete walls or floors.

Installation Steps

1. Drill a Hole:

   • Use a hammer drill and a carbide-tipped bit to drill a hole of the specified diameter and depth.

2. Clean the Hole:

   • Remove dust and debris using a brush, compressed air, or a vacuum.

3. Insert the Anchor:

   • Place the drop-in anchor into the hole, ensuring it sits flush with the surface.

4. Set the Anchor:

   • Use a setting tool and hammer to expand the anchor, securing it in place.

5. Install the Fastener:

   • Insert a bolt, threaded rod, or other fastener into the anchor and tighten.

Advantages of Drop-In Anchors

• Provides a flush, finished appearance.

• High load capacity for heavy-duty applications.

• Easy to install with the right tools.

• Versatile for use in concrete, brick, or block.

Common Sizes

Drop-in anchors are available in various sizes, typically specified by:

• Thread Size: e.g., 1/4", 3/8", 1/2" (imperial) or M6, M8, M10 (metric).

• Embedment Depth: The depth required for proper installation.

INTRODUCTION

Changsha Elewell Import and Export Co., Ltd. is located in the beautiful City, Changsha ,Hunan Province. We are professional supplier in electrical conduit and fitting line, strut channel ,electrical cable tray and support line . Through the efforts of the whole company, we have become a strong electrical conduits and fittings manufacturer and exporter. Currently, our products have been distributed to many countries all over the world, such as, South America, North America, Central America, Mid east, Southeast Asia.

Over the years, we have taken " Honest, High Quality, Creating value for customers" as our business philosophy, and have won wide acclaim in the international market for our excellent quality and reasonable pricing.

Our main product as below：

US STANDARD METAL CONDUIT AND FITTINGS

1) EMT CONDUIT and fittings : pre-galvnaized /hot dip galvanized electrical metallic conduit ; EMT elbow; set scew zinc/steel EMT connector and coupling ; one hole stap , two hole strap, Service Entrance Caps, Conduit Bender and so on .

2）IMC /RSC conduits and fittings: Intermediate Metal Conduit, Rigid Metal Conduit, Conduit Elbow, Connector and Coupling, One Hole Strap and Two Hole Strap, Service Entrance Caps, Reducing Bushing, Nipple, Locknut, Conduit Bushing, Watertight Hub and so on .

3）Steel Electrical Conduit Box and covers：4x4" Square Box, 4" Octagonal Box, 4x2" Handy Box, 4-11/16x4-11/16" Square Box.

4) Weatherproof boxes and cover : One gang , two gang and round weatherproof boxes and covers .

BS STANDDARD CONDUIT AND FITTINGS

5)BS GI conduit and fittings : BS4568/ EN 61386 conduit class 3 and class 4 ,BS31 GI Conduit class 3 and class 4 ; malleable iron round junction box and cover, space bar saddle , couplings ; BS switch steel boxes.

FLEXIBLE CONDUIT AND FITTINGS

6）Flexible Conduit and Fittings: Flexible galvanized Steel Conduit, PVC Coated Flexible Conduit, Liquid Tight flexible conduit, Non metallic liquid tight flexible conduit ; Squeeze Connector, Liquid Tight Connector, male flexible connector , pvc straight and angle connector.

STRUT CHANNEL AND FITTINGS

7) Strut Channel and Fittings: 41x41 ,41x21 pre-galvanized / hot dip galvanized Unistrut Channel, Spring Nut, Thread Rods, Strut Clamp, Cushioned Clamp, Conduit Hanger, Clevis Hanger, Sprinkler Clamp, Pipe Clamp, Pipe Clamp with Rubber.

ELECTRICAL CABLE TRAY

8）Electrical cable tray and fittings :GI , HDG , Aluminum , FRP, stainless steel perforated cable tray , cable ladder , cable trunking , wire mesh cable tray and cable trunking .

CABLE TIES

9）Stainless cable tie and Nylon cable tie : SS304/SS316 ball self lock cable tie , ladder type stainless steel cable tie , L type stainless steel locking tie, Releasable stainless cable tie, stainless steel band , buckle, cable tie tool , marker plate and nylon cable tie .