Durable Service Mast Clamp Set with U-Clamp and Bolt by Hydel 2504

Stock 3

Service Mast Clamp Assembly · 4 in x 4 in Washer and 5/8 in x 10 in Bolt · Through-Bolt Mounting · Hydel 2504

SKU: HYD-2504

Service mast clamp assembly for mounting a service stack on brick, concrete block, and similar wall construction. Includes a 4 in x 4 in galvanized washer and 5/8 in x 10 in bolt; typically selected where through-bolt mast support is required for exterior service entrance work.

What this product is for

The Hydel 2504 is a service mast clamp assembly used to secure a service entrance mast or stack to a building surface. It is intended for through-bolt mounting on brick, concrete block, and similar masonry applications where a rigid wall attachment point is needed.

Use for

Use for residential and light commercial service entrance mast installations, repairs, and replacements. Commonly used where the mast must be fastened through the wall structure using the supplied 5/8 in x 10 in bolt and 4 in x 4 in galvanized washer.

Avoid for

Avoid using this clamp where a lag-bolt wood-frame version is required, or where the wall assembly, mast size, or utility/service requirements call for a different clamp style. Do not assume compatibility with every mast configuration without checking local code and utility requirements.

Best for

Best for electricians and contractors installing or replacing service mast supports on masonry walls in Canadian exterior conditions. This style is a practical choice when a through-bolt clamp assembly is preferred over wood-frame mounting hardware.

Installed in

Typically installed on houses, small commercial buildings, and service upgrades where the service mast runs above the roofline or along an exterior wall. Common installation surfaces include brick and concrete block.

Why this product exists

Service masts need secure wall support to help resist movement from conductor tension and weather exposure. The 2504 provides a clamp assembly packaged for this purpose, with the washer and through-bolt included for the listed mounting style.

Compared with similar products

Compared with Hydel 2504-6 and 2504-12 variants, this 2504 version is supplied with a 5/8 in x 10 in bolt. Compared with wood-frame mast clamp versions, this assembly is aligned with through-bolt mounting rather than lag-screw style attachment. Actual suitability depends on wall construction, mast layout, and local electrical code.

Specifications

Brand: Hydel
Manufacturer part number: 2504
Product type: Service mast clamp assembly
Application: Mounting stack on brick, concrete block, and similar surfaces
Mounting style: Through-bolt
Included washer: 4 in x 4 in galvanized washer (approximately 102 x 102 mm)
Included bolt: 5/8 in x 10 in bolt (approximately 15.9 mm x 254 mm)
Category: Electrical installation hardware
Typical use: Service entrance mast support

- SKU
  HYD-2504
- Manufacturer Part #
  2504
Application
Mounting stack on brick, concrete block, and similar surfaces | Service ent
Category
Electrical installation hardware
Mounting
Through-bolt
Brands
Hydel
Stock in Flesherton
3

Aptico Supply Delivery

Fast Electrical Supply Delivery Across Ontario

Local delivery routes, pickup options, and contractor-focused service from our Elmira and Flesherton locations.

Shop Products Ask About Delivery

Real-Time Inventory

Contractor Delivery Routes

Elmira & Flesherton Pickup

Local Ontario Service

Delivery Built Around Electrical Contractors

Aptico Supply helps electricians, contractors, and commercial buyers get the electrical materials they need without unnecessary delays. Whether you are ordering for a jobsite, restocking service inventory, or arranging pickup, our delivery options are designed to keep work moving.

Free Daily Delivery

Free daily delivery is available for larger contractor accounts.

Order by 9:00 AM for morning delivery
Order by 2:00 PM for afternoon delivery
Available in qualifying local delivery areas

Free Weekly Delivery

Free weekly delivery is available for smaller accounts in select service areas.

Elmira area delivery: Tuesday
Flesherton area delivery: Thursday
Order by 11:00 AM on the route day

Pickup Options

Pickup is available from our Ontario locations for customers who prefer to collect their order directly.

Elmira pickup available
Flesherton pickup available
Call ahead for large or special-order items

Local Delivery Areas

See our local delivery coverage below. Delivery charges may apply outside regular route areas or for oversized items.

Delivery Questions

Do you offer free delivery?

Yes, free delivery is available for qualifying contractor accounts and selected local delivery routes.

Can I pick up my order?

Yes, pickup is available from our Elmira and Flesherton locations.

Do delivery charges apply?

Delivery charges may apply outside regular local routes, for smaller orders, or for oversized and heavy items.

Can you deliver to jobsites?

Yes, jobsite delivery may be available depending on the order size, location, and delivery schedule.

Need Electrical Supplies Delivered?

Contact Aptico Supply to confirm your delivery options, pickup availability, or contractor account eligibility.

Contact Aptico Supply

We accept the following payment methods:

Accepted payment methods

To replace this text with your store's actual info on payment methods, go to "Design -> Menus & Pages -> Product Page Tabs" and edit the Payment methods page.

This page is intended for your policy regarding returns and refunds.

Here you can provide information as to what products can be returned, how many days your customers have to return their purchase, whether they will receive a refund in the original form of payment, a replacement or a store credit, who pays for the shipping of the previously purchased products to the store, and so on.

To replace this text with your store's actual return policy, go to "Design -> Menus & Pages -> Product Page Tabs" and edit the Return Policy page.