Home Joist Clips Purlin Clip Installation Tool

Purlin Clip Installation Tool

Product Code: HOIT-AL

The HOIT-AL is an installation tool for the VOH14 (Z Purlin Clip – for diagonal flanges) and ADOC14 (C Purlin Clip – for vertical flanges) spring steel purlin clips. Comparable to CADDY’s® VAFT. Allows for fast, easy and efficient installation of VOH14 and ADOC14 clips.

Made of high quality aluminum. Features ½” NPT female threads for convenient mounting to extension poles.

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specs

Material: Cast Aluminum & Spring Steel
Thread Type: ½” NPT – National Pipe Thread
Finish: Burnished
Product Weight: 0.35 lbs.
Application: Used to install ADOC14 & VOH14 purlin clips

documentation

Installation Instructions Flyer MSDS SDS DATA SHEET

FAQs

General

What is a joist clip?

A joist clip is a formed steel attachment that grips a purlin or joist flange and gives you a secure point to hang ceiling wire, jack chain, or threaded rod. You use it when you need fast, reliable support on metal framing without drilling or clamping hardware.

What does a joist clip do in cable management?

A joist clip creates a fixed anchor point along a structural flange so you can suspend cable runs, lighting, or mechanical components in a clean, controlled layout. It helps you keep pathways organised, prevents contact with sharp edges, and supports consistent routing.

Why choose a joist clip for overhead installations?

Joist clips install quickly, stay firmly in place, and keep your suspension point exactly where you need it. They reduce hardware requirements, minimise installation time, and perform well in areas where standard beam clamps or brackets won’t fit.

How is a joist clip different from other flange attachments?

Other attachments may require bolts, set screws, or additional components to hold position. Joist clips use a spring-steel grip that locks onto the flange without tools. They are lighter, faster to install, and ideal for repetitive mounting along long structural runs.

What is the difference between Z-purlin and C-purlin clips?

Z-purlin clips attach to angled or diagonal flanges, while C-purlin clips attach to vertical flanges. Both create a stable suspension point, but each is shaped to match a specific flange orientation so your loads hang straight and secure.

Product Features and Specifications

What sets Doc’s Industries joist clips apart?

Doc’s Industries uses precision-formed spring steel that grips cleanly and maintains tension over time. Their clips resist deformation, stay aligned under load, and install the same way every time for predictable, repeatable performance on site.

What can you hang from a joist clip?

You can hang ceiling wire, jack chain, threaded rod, fixture supports, or low-voltage cable hardware. Several models include built-in rod hangers with 3/8"-16 or 1/4"-20 threaded impressions to support common suspension systems.

Do joist clips support threaded rod?

Yes. Clips assembled with TI rod hangers let you thread rod directly into the attachment point, giving you a ready-made connection for suspended installations like trays, fixtures, or mechanical lines.

Are joist clips compatible with ceiling wire?

Yes. Many models include a hole sized for standard ceiling wire, allowing you to tie in wire quickly during grid, lighting, or HVAC installations.

Are Doc’s joist clips rated for indoor use?

Yes. Their spring-steel construction and zinc finishes are designed for reliable indoor performance in commercial, industrial, and institutional environments.

Installation and Usage

How do you install a joist clip?

Most clips push or tap onto the flange until they snap into place. They require no drilling or bolting. Once seated, they hold their position firmly so you can attach the wire, rod, or chain right away.

Do I need a tool to install joist clips?

Tools aren’t required, but installation tools such as HOIT-S or HOIT-AL make overhead work easier and speed up repetitive installation on long runs.

Can joist clips be used on multiple flange thicknesses?

Yes. Most clips fit flanges from 1/8" to 1/4" thick, and specialized models accommodate specific ranges. The spring tension ensures a tight, consistent grip.

Who uses joist clips?

Electricians, low-voltage installers, mechanical contractors, and construction crews use joist clips to build clean suspension paths for wiring, lighting, and lightweight equipment.

Data Cable Bend Sensitivity

Why does bend control matter even when using joist clips?

Even with secure attachment points, improper bends in cable runs can disrupt performance. Maintaining smooth, gradual bends protects the internal structure of data cables and keeps signal levels stable.

How do you maintain proper bend radius when working overhead?

Space out support points, avoid sharp directional changes, and route cables so they rest naturally rather than pulling tight across edges. Joist clips help by giving you predictable mounting intervals.

What basic rules support good cable management?

Use consistent spacing, avoid crushing cable bundles, separate power from data, respect bend radius guidelines, and inspect suspension points regularly for strain or wear.

Purchase and Availability

Where is Doc’s Industries based?

Doc’s Industries is based in Simi Valley, CA. Our team is dedicated to providing quality products and above and beyond service to customers globally.

Are joist clips in stock?

Inventory is updated frequently. For current availability and order details, contact the sales team or use the on-site “Where to Buy” tool.

Do you supply to wholesale and retail customers?

Doc’s Industries services wholesale accounts. Please use the “where to buy” function on our website to be connected to the nearest distributor.

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