Need larger pin hole .0177 size

.0177” is about 1/57th of an inch or .45mm. You would need a #77 (.4572mm or .018”) drill bit. I would say that’s a little too small.

How do I order the pieces in stainless steel? What are the part numbers?

Search for stainless brackets. I went with aluminum to reduce the weight in my Jon boat.

We have sp 67749 and sp 1002 seat mount. How much force should be needed to fit them together? Opening in plastic insert seems too small for shaft.

It will fit tight! Push hard to get it in. It will be even harder to get out!

How tall is the shoreline marine seat post?

The post is 11". the base shown is 3/4" thick

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⚓ Lock in your ride with style and strength!

ROCK SOLID STABILITY - Secure 3/4" Lock'N-Pin system ensures your gear stays locked in place without wobble.
HEAVY DUTY ATTACHMENT - Six-bolt or screw mounting options provide maximum strength and reliability (hardware not included).
LIGHTWEIGHT YET TOUGH - At just 454g, this aluminum base balances portability with rugged durability for all your boating adventures.
SLEEK DURABLE FINISH - Brushed aluminum not only looks premium but resists corrosion for long-lasting performance.
EFFORTLESS COMPATIBILITY - Designed for non-threaded 3/4" pedestal pins, making installation a breeze.

The attwood SP-67749 Swivl-Eze Lock'N-Pin Aluminum is a 7"x7" brushed aluminum base designed for boating enthusiasts seeking a secure, corrosion-resistant mounting solution. Compatible with non-threaded 3/4" pedestal pins, it offers a durable, lightweight design with six-bolt attachment for reliable stability.

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€ 41.11

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Netherlandsstore

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Color	Unspecified
Size	7" X 7"
Weight	454 g
Material type	Aluminium
Number of items	1
Sport	Boating
Included components	End Product & Information
Batteries included?	No
Brand	attwood
Department	Unisex
Manufacturer	Attwood
Item model number	SP-67749
Product Dimensions	12.7 x 19.05 x 20.32 cm; 453.59 g
ASIN	B001O0DF1Q

attwoodSP-67749 Swivl-Eze Lock'N-Pin Aluminum

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