Lay-In Ground Lug · 1/4 in Mounting Hole · 4-14 AWG Copper · Tin-Plated Copper · Ilsco GBL-4DBT-14
Tin-plated copper lay-in ground lug for 4-14 AWG copper conductors with a 1/4 in mounting hole. Commonly used where a continuous grounding conductor needs to be laid in without cutting, including direct burial or concrete-encased grounding connections where listed and code-compliant.
What this product is for
The Ilsco GBL-4DBT-14 is a lay-in ground lug used to bond or terminate 4-14 AWG copper grounding conductors to equipment, structures, or other grounding points using a 1/4 in bolt hole. The lay-in design helps when the grounding conductor needs to remain continuous during installation.
Use for
Use for copper grounding conductors in panels, equipment bonding, pool equipment bonding where applicable, and other grounding connections that require a compact mechanical lug. It is commonly selected when direct burial or concrete contact is part of the installation and the product listing matches the application.
Avoid for
Avoid using this lug with aluminium conductors, with stud sizes other than 1/4 in, or where a lay-in style connector is not permitted by the equipment listing or local code. Do not assume dual-rated means copper/aluminium on this model; source listings indicate copper conductor use.
Best for
Best for electricians who need a compact grounding lug for #4 to #14 AWG copper with easier conductor placement than a closed-end lug. It is a practical choice when working with continuous loop grounding conductors or retrofit bonding points.
Installed in
Typically installed in electrical rooms, service equipment, pool and spa bonding points, outdoor equipment, and other grounding locations in residential, commercial, and industrial work. The 1/4 in mounting hole is approximately 6.4 mm.
Why this product exists
This product exists to provide a mechanical grounding connection that is easier to install on continuous conductors than a standard closed lug. The lay-in opening can reduce rework when the grounding conductor does not need to be cut and re-terminated.
Compared with similar products
Compared with closed mechanical lugs, a lay-in lug can speed up installation on continuous grounding conductors. Compared with larger grounding connectors, this model is sized for 4-14 AWG copper and a 1/4 in stud, so verify conductor range and mounting hardware before ordering.
Specifications
- Manufacturer: Ilsco
- Manufacturer part number: GBL-4DBT-14
- Product type: Lay-in ground lug
- Series/family: Permaground
- Conductor range: 4-14 AWG copper
- Conductor material: Copper only
- Mounting hole / stud size: 1/4 in (approximately 6.4 mm)
- Body material: Copper
- Finish: Tin-plated
- Head type: Slotted head
- Application notes: Lay-in design for continuous loop grounding conductor; suitable for direct burial in earth or concrete where listed
- Series FamilyPermaground
- FinishTin-plated
- Conductor MaterialCopper only
- Conductor Range4-14 AWG copper
- Body MaterialCopper
- Head TypeSlotted head
- BrandsIlsco
- Stock in Flesherton5
Aptico Supply Delivery
Fast Electrical Supply Delivery Across Ontario
Local delivery routes, pickup options, and contractor-focused service from our Elmira and Flesherton locations.

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 SupplyWe accept the following 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.




