What is the diameter of the hole for the lock shackle?

The hole is 7/16" (not 1/2" like the other answer says). Would have been nice if the manufacturer had listed this in the description.

Is the body aluminum? How secure can that be?

Blaylock Trailer (TL-33) Lock. The EZ Lock Model TL-33 Universal Coupler Lock is precision made of heavy grade aircraft aluminum and will not rust. It features a solid hardened 3/4" steel locking rod, for use with large heavy duty padlock (padlock not included). Fits all trigger style: Fulton, Shelby, Dutton-Lainson, Atwood, and similar. Fits latch style: Atwood, Fulton cast couplers and similar. Does not fit Hammeblow (Bulldog) couplers. Inside dimension of the channel is 4-3/4 inches with overall dimensions of 4-1/2" depth x 6-1/8" wide x 5-1/2" tall. A patented design ensures the most secure way to leave an unattended trailer.

What if I only need a pin

Make one out of a grade 8 bolt the length you need to be able install a lock. Have a hole drilled in the end of the bolt slightly larger than the lock used

Would a 5/8" locking hitch pin work with this security device?

Not sure why anyone would want to attempt that. I would suggest ordering it - then take the rod from it to a locksmith you trust and get a good padlock for it. If you want things Keyes the same so you don’t look like a high-school janitor - locksmiths can customize locks and match key gateway systems. If you get a cheap lock from a big box store - think through the “weakest link” theory and scrap the idea of buying this item.

Blaylock American Metal Tl 33 Coupler Lock

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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853 kr

Duties & taxes included

In stock

Sold byAmazon Faroe IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔐 Lock It Down, Drive It Proud!

🌟 TRUSTED BRAND - Manufactured by Blaylock American Metal, a name synonymous with reliability and quality.
📏 ADJUSTABLE FIT - Accommodates couplers from 2" to 2-5/16", providing a snug and secure fit every time.
🔑 SECURE YOUR TRAILER - Designed for both commercial and recreational use, ensuring peace of mind wherever you go.
💪 DURABLE CONSTRUCTION - Crafted from high-quality aluminum and alloy steel with a powder-coated finish for long-lasting performance.
🔄 VERSATILE COMPATIBILITY - Fits over 30 different coupler styles and brands, making it the ultimate choice for diverse needs.

The Blaylock TL-33 Universal Coupler Receiver Lock is a robust and versatile locking solution designed for both commercial and recreational trailers. Weighing just 3 pounds, this lock fits over 30 different coupler styles and accommodates couplers ranging from 2" to 2-5/16". Made from durable aluminum and alloy steel with a powder-coated finish, it ensures long-lasting protection for your trailer. Proudly made in the USA, the TL-33 is the go-to choice for secure and reliable trailer locking.

Specifications

ASIN	B000R6T8NW
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#110,529 in Automotive ( See Top 100 in Automotive ) #179 in Towing Hitch Locks
Brand	Blaylock American Metal
Brand Name	Blaylock American Metal
Compatible with Vehicle Type	Trailer
Customer Reviews	4.6 out of 5 stars 1,017 Reviews
Finish Type	Powder Coated
Global Trade Identification Number	00749560112333
Included Components	Main component only
Item Weight	3 Pounds
Manufacturer	Blaylock American Metal
Manufacturer Part Number	TL-33
Manufacturer Warranty Description	Please contact us if you experience any issues within 30 days of receipt.
Material	Alloy Steel , Aluminum , Metal
Material Type	Alloy Steel, Aluminum, Metal
UPC	749560112333
Unit Count	1.0 Count
Vehicle Service Type	Trailer

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853 kr

Duties & taxes included

In stock

Sold byAmazon Faroe IslandsDelivered 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 Faroe Islands.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.