Overhead Concealed Closer End Load Arm | K-Type | 5/8" Deep Top Rail | Center-Hung Commercial Doors

Complete or repair a compatible overhead concealed closer installation with the Prime Door Controls 7000 Series K-Type 5/8" End Load Arm.

Designed for compatible 7000 Series OHC systems, this K-Type top arm connects a center-hung commercial door to the overhead concealed closer spindle and is specifically designed for doors with a 5/8" deep top rail.

The end-loading design is commonly used on aluminum storefront and commercial entrance doors where the arm installs through the end of the door's top rail.

Key Features

• Designed for compatible Prime Door Controls 7000 Series OHC closers

• K-Type End Load Arm

• Designed for 5/8" deep top rails

• Used with center-hung commercial doors

• End-loading top arm configuration

• Connects the door to the overhead concealed closer spindle

• Door-centering adjustment

• Commercial-grade replacement hardware

• Ideal for aluminum storefront doors

• Suitable for repair, replacement, and new installations

• Designed for high-traffic commercial entrance systems

• Arm assembly only unless specifically stated otherwise

K-Type End Load Configuration

The K-Type is a standard overhead concealed closer arm configuration designed for center-hung doors with a 5/8" deep top rail.

Unlike a side-load arm, the K-Type installs through an opening at the end of the door's top rail.

The arm remains concealed within the top rail and connects directly to the overhead concealed closer spindle.

5/8" Top Rail Application

The 5/8" designation refers to the depth of the compatible door's top rail.

Before ordering, verify that the existing door is prepared for:

• K-Type arm

• End-load installation

• 5/8" deep top rail

• Center-hung configuration

• Compatible overhead concealed closer spindle

Different rail depths require different OHC arm configurations.

Center-Hung Door Application

The K-Type arm is designed for compatible center-hung door systems, where the pivot axis is located within the door rather than offset from the face.

Center-hung OHC systems are commonly used on:

• Aluminum storefront doors

• Glass-and-aluminum entrance doors

• Retail entrances

• Office buildings

• Commercial facilities

• High-traffic entrance doors

Door-Centering Adjustment

K-Type end-load arms typically provide centering adjustment through the two bolts located at the end of the arm.

This allows installers to fine-tune the door's position within the opening.

The K-Type configuration generally does not provide lateral adjustment, so correct door preparation and compatible hardware are important.

Designed for Prime 7000 Series OHC Systems

The Prime Door Controls 7000 Series is an overhead concealed closer platform designed for commercial storefront and entrance applications.

Different door constructions may require different arm styles, including:

• A-Type – 1" End Load Arm

• K-Type – 5/8" End Load Arm

• S-Type – 1/2" Side Load Arm

• Offset arms

• Other application-specific OHC assemblies

Always match the arm configuration to the existing door preparation.

Product Specifications

Brand: Prime Door Controls
Series: 7000 Series
Product Type: OHC Top Arm
Arm Type: K-Type End Load
Top Rail Depth: 5/8"
Door Configuration: Center Hung
Closer Type: Overhead Concealed Closer
Application: Commercial Aluminum / Storefront Door
Function: Closer-to-Door Arm Connection
Loading Style: End Load
Adjustment: Door Centering
Use: Replacement / Repair / New Installation

Common Applications

Ideal for:

• Aluminum storefront doors

• Commercial entrance doors

• Retail storefronts

• Shopping centers

• Office buildings

• Restaurants

• Hotels

• Schools and universities

• Hospitals and healthcare facilities

• Government buildings

• Institutional facilities

• High-traffic commercial entrances

Replacement Applications

Replace the existing K-Type arm when it is:

• Bent

• Broken

• Worn

• Loose

• Missing

• Damaged at the spindle connection

• Damaged during closer replacement

• No longer maintaining proper door positioning

When replacing the arm, inspect the closer spindle, top rail, bottom pivot, fasteners, and surrounding door hardware for additional wear.

OHC Arm Selection Guide

A-Type

• End-load configuration

• 1" deep top rail

K-Type

• End-load configuration

• 5/8" deep top rail

S-Type

• Side-load configuration

• 1/2" deep top rail

These arm types are not automatically interchangeable.

Installation Notes

Before ordering, verify:

• Prime 7000 Series closer compatibility

• 5/8" top rail depth

• K-Type arm requirement

• End-load door preparation

• Center-hung configuration

• Existing closer spindle

• Bottom pivot configuration

• Door alignment and clearances

After installation, check the door throughout its complete swing to verify smooth operation and proper centering.

Important Compatibility Note

This listing is for the K-Type 5/8" End Load Arm only.

It does not include:

• 7000 Series closer body

• Bottom pivot

• A-Type arm

• Side-load arm

• Offset arm

• Track

• Door

• Frame

Verify the complete overhead concealed closer hardware configuration before ordering.

What's Included

(1) Prime Door Controls 7000 Series K-Type 5/8" End Load Arm

Closer body, bottom pivot, mounting hardware, door, frame, and other OHC components are sold separately unless specifically stated otherwise.