Drop In Anchor SS

Product Introduction

• Standard Name: Stainless Steel Drop-In Anchor.

• Common Names: Stainless Steel Internal Expansion Anchor, Stainless Steel Internal Expansion Bolt, Stainless Steel Expansion Screw, SS304/316 Impact-Driven Internal Expansion Anchor.

• Product Definition: A post-installed stainless steel expansion anchor bolt. Installation requires pre-drilling a hole and inserting the anchor bolt. Striking the specialized core rod causes the base to expand, forming a powerful friction lock within the concrete hole walls. This achieves flush-mounted fixation with high load-bearing capacity. Its stainless steel construction provides excellent corrosion resistance.

Drop In Anchor SS Key Features

• Stainless Steel (SS): Commonly AISI 304 or 316 grade, providing excellent corrosion resistance, oxidation

  resistance, and hygiene, suitable for humid, acidic, alkaline, or salt spray environments.

• Internal Expansion Design: The cylindrical anchor body features internal threads and a tapered expansion

  groove at the bottom, allowing for expansion and fixation using a specialized installation tool, providing

  high holding power and pull-out resistance.

• Strength and Durability: High-strength design suitable for medium to heavy-duty fixing on solid

  substrates such as concrete; natural gloss finish, no additional coating required.

• Various Sizes: Internal threads M6-M20, lengths 25-80mm, requires a specialized installation tool.

• Advantages: Concealed installation, strong holding power, reusable threads, durable and hygienic, but

  requires a specialized tool for expansion.

Working Principle

• Drilling and Insertion: Drill a hole of the appropriate diameter and depth in the concrete, and drop the

  anchor into the hole (head flush).

• Expansion Fixing: Using a specialized setting tool, tapping or rotating expands the anchor body wall with

  the bottom conical section, gripping the hole wall tightly.

• Threaded Application: After expansion, a permanent internal thread is provided for bolt tightening; the

  stainless steel passivation layer resists chemical corrosion.

• Load Distribution: The expansion force is evenly distributed, providing high pull-out strength; the

  principle involves mechanical expansion and frictional gripping.

Product Applications

• Marine and Shipbuilding: Fixing equipment or structures to concrete, resisting seawater corrosion.

• Food and Pharmaceutical: Installing processing equipment or containers, hygienic and pollution-free.

• Chemical Industry: Fastening pipes or valves, resistant to acid and alkali environments.

• Ceiling and Piping: Fixing hangers, light fixtures, or ventilation ducts to concrete ceilings, concealed

  and aesthetically pleasing.

• Construction and Outdoor: Bridge railings, curtain walls, or outdoor fixing, providing long-term stability.