Hilti S-MD 12-14x2 1/2 HWH #3 SS316 Screw Installation Guide

Quick installation guide for Hilti S-MD 12-14x2 1/2 HWH #3 SS316 screws, including tool compatibility, drilling capacity, and correct fastening procedures for stainless steel applications.

Table of contents

Quick guide from the manual

This document provides essential installation parameters and safety guidelines for the Hilti S-MD 12-14x2 1/2 HWH #3 SS316 screw (item #2377492). It is designed for use in stainless steel (A4) applications, including environments within 1km of the coast or industrial areas.

Tool compatibility

For proper installation, use only the following Hilti tool configurations:

ST 1800, ST 1800-A, or ST 2000-22 combined with the S-NSD 8 depth gauge.
SF (H) combined with the S-NSD 8 depth gauge.

Do not use SID or SIW impact tools for this application.

Installation procedure

Step-by-step installation and tool compatibility guide.

Ensure the correct tool and depth gauge (S-NSD 8) are attached.
Set the tool to the appropriate depth to ensure the screw is seated correctly without over-tightening or damaging the washer.
Position the tool perpendicular to the surface. Avoid angled drilling.
Drive the screw until the washer is firmly seated against the surface. Do not over-tighten, as this can damage the seal or the fastener.

Technical specifications

Screw type: HWH #3 SS316
Drilling capacity (DC): 0.10 - 0.24 inches
Max material thickness (MFmax): 1.77 inches
Head size: 5/16 inch
Diameter: #12 (0.216 inches)

Manufacturer information

Hilti Corporation

Brand profile

Manufacturer website https://www.hilti.com Support https://www.hilti.com/content/hilti/global/en/support.html Manufacturer manuals https://www.hilti.com/content/hilti/global/en/technical-literature.html

Practical help

Common problems

Screw head or washer damage

Ensure the depth gauge (S-NSD 8) is correctly adjusted to prevent over-driving the screw.

Incompatible tool usage

Do not use SID or SIW impact tools; use only specified ST or SF series tools with the S-NSD 8 depth gauge.

Before use

Verify the material thickness is within the 1.77 inch limit.
Ensure the drilling capacity is between 0.10 and 0.24 inches.
Confirm the use of a 5/16 inch socket.
Check that the S-NSD 8 depth gauge is installed on the tool.

Manual page author

David Miller

Documentation analyst

Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.