GROCO TH-1501 Spare Flanged Hull Lock Nut 742985016071 TH-1251 1-1/2

( Brand: Groco ), ( Part Type: Flanged Lock ), ( Manufacturer Part Number: TH-1501 ), ( Also Known As: Perko 0075008dpp, Buck Algonquin 00thn150, Apollo Conbraco 65-006-41 ), ( UPC: 742985016071 )

Review GROCO Bronze 1-1/2 Inch Spare Replacement Flanged Thru hull Lock Nut

The Groco TH-1501 and TH-1251 1-1/2 inch spare flanged thru-hull lock nuts are essential components for maintaining the structural integrity and watertight seal of your boat's through-hull fittings. These lock nuts are specifically designed for use with Groco's range of thru-hull fittings and seacocks.

The TH-1501 and TH-1251 lock nuts are made from high-quality stainless steel, ensuring durability and resistance to corrosion in the harsh marine environment. The flanged design provides a secure and even seating on the thru-hull fitting, while the locking mechanism ensures a tight and secure connection to the seacock.

The lock nuts feature a unique tapered design, which allows for easy hand-tightening and ensures a consistent sealing force around the entire circumference of the thru-hull fitting. The locking mechanism also includes a detent that engages when the nut is properly tightened, providing an audible and tactile indication that the nut is securely in place.

The TH-1501 and TH-1251 lock nuts come as spare parts, perfect for keeping on hand for maintenance or replacement purposes. They are easy to install, requiring no special tools or expertise, making them an ideal solution for boat owners who want to ensure the continued performance and safety of their through-hull fittings.

In summary, the Groco TH-1501 and TH-1251 1-1/2 inch spare flanged thru-hull lock nuts are high-quality, durable components designed to provide a secure and watertight seal for your boat's through-hull fittings. Their unique tapered design and locking mechanism make them easy to install and provide peace of mind for boat owners who demand the best in marine equipment.

The Groco TH-1501 and TH-1251 are 1-1/2 inch spare flanged thru-hull lock nuts used for installing and securing through-hull fittings in marine applications. Here are the pros and cons of buying these lock nuts:

1. Compatibility: These lock nuts are compatible with a wide range of Groco and other marine through-hull fittings.

2. Durability: Made of 316L stainless steel, these lock nuts are highly resistant to corrosion and can withstand the harsh marine environment.

3. Easy to Install: The lock nuts come with a pre-installed gasket and are easy to install using a wrench or a nut driver.

4. Secure Connection: The lock nuts provide a secure connection to the through-hull fitting, preventing leaks and water intrusion.

5. Reusable: These lock nuts can be reused multiple times, making them a cost-effective solution for boat owners.

1. Size: These lock nuts are only suitable for 1-1/2 inch thru-hull fittings.

2. Availability: These lock nuts may not be readily available in local marine stores, and boat owners may have to order them online.

3. Cost: While these lock nuts are reusable, they may still represent an additional cost for boat owners who need to replace lost or damaged nuts.

In conclusion, the Groco TH-1501 and TH-1251 1-1/2 inch spare flanged thru-hull lock nuts offer several advantages, including compatibility, durability, ease of installation, secure connection, and reusability. However, they may not be readily available in local marine stores and represent an additional cost for boat owners. Overall, these lock nuts are a valuable addition to any boat owner's toolkit, providing a reliable and secure solution for installing and securing through-hull fittings.

Recommendation: If you need to purchase 1-1/2 inch spare flanged thru-hull lock nuts for your boat, consider buying the Groco TH-1501 or TH-1251. These lock nuts offer several advantages and can help ensure a secure and leak-free connection for your through-hull fittings. Additionally, consider ordering them online to ensure availability and convenience.

part # th1501 prices

• $15.61-$21.99

specifications vesselvent:

• brand: Groco
• part type: Flanged Lock
• manufacturer part number: TH-1501
• also known as: Perko 0075008dpp, Buck Algonquin 00thn150, Apollo Conbraco 65-006-41
• upc: 742985016071

returns vesselvent:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

offer vesselvent:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: February 25, 2026
• quantity: 1

shipping vesselvent:

• service: USPS First Class, USPS Priority Mail Padded Flat Rate Envelope
• transit: 3-7 Days
• carrier: USPS
• cost: $0.00
• class: Standard, Expedited
• type: Calculated

seller vesselvent:

• rating: 99.5%
• # reviews: 9042

payments vesselvent:

• credit card: Discover
• other
• cash
• wallet: Apple-pay

general vesselvent:

• condition: New
• Parts Accessories > Boat Parts > Plumbing Ventilation

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