1/4" Thick 3" x 18" Leaning Post Countersunk Pad | 8 Countersunk Holes | Marine Grade 6061-T6
Part Number: 0165
3" x 18" Leaning Post Countersunk Pad — Flush Mount
Precision CNC-machined 6061-T6 aluminum leaning post pad with eight flush-mount countersunk holes. Primarily designed as a leaning post foot, but versatile enough for hard tops, radar arches, and other flat-panel mounting applications in saltwater marine environments.
| Material | Marine Grade 6061-T6 Aluminum |
| Length | 18" (457 mm) |
| Width | 3" (76 mm) |
| Thickness | 1/4" (0.250") |
| Mounting Holes | 8 countersunk, Ø 1/4" — flush head seating |
| Shape | Rectangular |
| Finish | Matte — tumbled, deburred, paint/powder coat ready |
| Weight | 1.30 lb |
Common Applications
Leaning post feet and bases, T-tops, hard tops, radar arches, grab bars — any flat-panel mounting surface that benefits from a long, narrow countersunk pad.
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.
Why eight holes?
Eight countersunk holes along the 18" length distribute fastener load evenly and prevent the pad from flexing or lifting under load — critical for leaning post applications where the pad receives repeated lateral stress.
What fasteners work with this pad?
Use 1/4" countersunk head screws to match the mounting holes. Hardware and fastener requirements vary by installation
Can this pad be used for anything other than leaning posts?
Yes — the 3" x 18" profile works well for any long, narrow mounting surface including hard top edges, radar arch brackets, and grab bar reinforcement.
- 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.
