3/8" 9" x 5" Oblong Aluminum Countersunk Pad | 2-Hole 25/64" + Center Vent | Marine Grade 6061-T6
Part Number: 0042-A
Two-Hole Oblong Countersunk Pad with Center Vent
Precision CNC-machined 6061-T6 aluminum oblong countersunk pad with two 25/64" mounting holes sized for 3/8" fasteners and a 5/16" center vent for weld gas release. Countersunk holes allow screw heads to sit flush with the pad surface for a clean, professional finish on fiberglass deck surfaces.
| Material | Marine Grade 6061-T6 Aluminum |
| Dimensions | 9" × 5" (L × W) |
| Thickness | 3/8" (0.375") |
| Mounting Holes | 2 countersunk (25/64" dia. for 3/8" fasteners) |
| Center Vent | 5/16" (weld gas release) |
| Shape | Oblong |
| Finish | Matte — tumbled, deburred, paint/powder coat ready |
| Weight | 1.65 lb |
Common Applications
T-tops, tuna towers, hard tops, radar arches, leaning posts, grab bars, bow rails, outrigger mounts, rod holders.
Frequently Asked Questions
What does "countersunk" mean for this pad?
Countersunk means the mounting holes are chamfered so countersunk head screws sit flush with the pad surface — no protruding screw heads that could snag lines or cause injury.
Can this pad be used on a fiberglass deck?
Yes — this pad is designed for fiberglass deck installations. The countersunk holes accommodate countersunk head screws, and the pad distributes fastener loads over a wider surface area to prevent deck damage.
What size screws do I need?
The two countersunk holes are sized for 3/8" fasteners (25/64" hole diameter). Use 3/8"-16 stainless countersunk head screws for best results.
What is the center vent hole for?
The center vent hole allows trapped air and gases to escape during welding, preventing blow-through and ensuring a clean, full-penetration weld.
- Local pickup available
- One Business Day Shipping
- Call us Mon.-Fri. 9:00 a.m. to 4:00 p.m. if in any doubt.
Due to this item's size and weight we can only ship it in an economical way via Less Than Truckload (LTL) consolidated land shipping, and only to the contiguous 48 States.
For shipping inquiries to AK, HI, PR, US-VI, and international shipping, please contact us first at sales@weldingworldinc.com.
All of the destinations above we can only serve as a Free Carrier (or FCA) modality, that requires the customer to contract and pay for their carrier service of choice. We can still ship the item, but only to a warehouse/receiving office within the 48-contiguous States.
In plain terms what this means is that if you want to ship your product to any non-contiguous US territory or internationally, you, the customer, has to provide us with the warehouse address of the carrier that serves your locality with an address within the contiguous 48-US States, as we do not ship overseas on our own.
