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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attwood SP-67749 Swivl-Eze Lock'N-Pin Aluminum 7-Inch x 7-Inch Marine Boat 3/4-Inch Pedestal Base

attwood SP-67749 Swivl-Eze Lock'N-Pin Aluminum 7-Inch x 7-Inch Marine Boat 3/4-Inch Pedestal Base

Product ID: 3630108

Details

Brand
attwood
Material
Aluminum
Orientation
Front
Seat Width
7 Inches
Vehicle Service Type
Boat

⚓7"x7" sturdy aluminum base

🔩6-bolt secure installation

🛥️3/4" Lock'N-Pin for ultimate stability

273.16 DT

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Description

🛥️ Elevate your boat seating game with Lock'N-Pin precision!

LOCK N PIN 3 4 DIAMETER - Ensures rock-solid seat attachment for worry-free cruising
SIX BOLT MOUNTING SYSTEM - Easy, secure installation with maximum deck stability
UNIVERSAL 7 X 7 BASE SIZE - Fits seamlessly on most pontoon and fishing boats for versatile upgrades
PREMIUM BRUSHED ALUMINUM FINISH - Corrosion-resistant elegance that lasts season after season
ENGINEERED FOR MARINE DURABILITY - Lab-tested to withstand harsh water conditions and keep you afloat in style

The Attwood SP-67749 Swivl-Eze Lock'N-Pin Aluminum Pedestal Base is a 7"x7" marine-grade aluminum mounting base featuring a corrosion-resistant brushed finish and a 3/4" Lock'N-Pin for secure seat attachment. Designed for universal fit on pontoon, fishing, and cruising boats, it installs easily with six bolts (hardware not included) and is engineered for long-lasting durability in demanding marine environments.

Specifications

ASIN	B001O0DF1Q
Auto Part Orientation	Front
Automotive Fit Type	Universal Fit
Best Sellers Rank	#34,825 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #210 in Boat Deck Hardware
Brand	attwood
Brand Name	attwood
Color	Silver
Compatible with Vehicle Type	Boat
Customer Reviews	4.8 out of 5 stars 2,431 Reviews
Fit Type	Universal Fit
Global Trade Identification Number	00014599677499
Included Components	End Product & Information
Item Type Name	boat-seating-accessories
Item Weight	16 ounces
Manufacturer	ATTAC - pallet ordering
Manufacturer Part Number	SP-67749
Material	Aluminum
Material Type	Aluminum
Model Number	SP-67749
Number of Items	1
Number of Packs	1
Orientation	Front
Seat Depth	0.75 inches
Seat Width	7 inches
UPC	014599677499
Unit Count	1 Count
Vehicle Service Type	Boat

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273.16 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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