Hilti S-MD 51S 5.5x32 Fastener Guide

Product Overview

The Hilti S-MD 51S 5.5x32 (item #375230) is a high-quality stainless steel (A2) fastener designed for secure metal-to-metal fastening applications. It is engineered for durability and corrosion resistance, making it suitable for various construction environments, including coastal areas within 1-10km of the sea.

Technical Specifications

The fastener features a 5.5mm diameter and is designed for a drilling capacity (DC) of 1.2-3mm. The maximum material thickness (MFmax) is 15mm, with a head size of 8mm. The total length of the fastener is 32mm, with a washer diameter of 16mm.

Installation Guidelines

For optimal installation results, use the fastener with compatible Hilti power tools, specifically the ST 1800, ST 1800-A, or ST-2000 models. Ensure the tool is set to an operating speed between 1200 and 2000 revolutions per minute. Use the S-NS 8 socket for driving the fastener.

Safety and Best Practices

• Always ensure the tool is perpendicular to the surface during installation to prevent slippage or damage.
• Do not over-tighten the fastener; the washer should be seated firmly against the surface without deforming the material.
• Verify that the fastener is driven straight to maintain structural integrity.
• Avoid using the tool at incorrect speeds or with incompatible accessories.