Is the spring also 316 stainless steel?

Yes, all the components(including the spring) are made of 316 stainless steel.

How would I attach a vintage key chain of my own to this? Jump ring + jewelry pliers?

That was how I attached mine to swivel, jump ring and small set of Jewler needle nose pliers. depending on vintage key chain durability! hope this helps.

I need to attach to flag groments. Is the 3.5 a larger clip end than the 2.75 is?

Yes, and the opening is bigger than 2.75 version

Shonan 2 75 Inch Swivel Eye Snap Hook 2 Pack

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€ 18.26

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Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔗 Lock in strength and style with SHONAN’s swivel snap hooks—because your gear deserves the best!

HEAVY DUTY STRENGTH - Supports up to 100 pounds, perfect for demanding tasks from scuba gear to dog leashes.
EFFORTLESS 360 SWIVEL - Smooth full rotation lets you clip and secure from any angle with one hand—efficiency meets convenience.
MARINE GRADE DURABILITY - Crafted from premium 316 stainless steel for unbeatable rust and corrosion resistance in any environment.
TRUSTED QUALITY WARRANTY - Backed by a 1-year warranty and glowing 4.8-star reviews, reliability you can count on.
VERSATILE MULTI USE DESIGN - Ideal for outdoor enthusiasts—secure flags, camera straps, leashes, and more with confidence.

The SHONAN 2.75 Inch Swivel Eye Snap Hook is a premium marine-grade 316 stainless steel snap designed for durability and corrosion resistance. Featuring a 360-degree swivel for easy one-handed operation and a 100-pound safety load, it’s perfect for scuba diving, dog leashes, flag poles, and more. Sold in a 2-pack with a polished finish and backed by a 1-year warranty, these hooks combine rugged strength with versatile functionality for professionals and outdoor enthusiasts alike.

Specifications

ASIN	B0933JFP4H
Best Sellers Rank	#3,267 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Bolt Snaps
Brand	Shonan.Systems
Color	Silver
Compatible Groove Diameter	0.38 Inches
Customer Reviews	4.8 out of 5 stars 667 Reviews
Fastener Type	Snap
Finish Types	Polished
Item Diameter	0.5 Inches
Item Dimensions	2.75 x 1 x 0.5 inches
Item Shape	Irregular Shape
Item Weight	1 Ounces
Item dimensions L x W x H	2.75 x 1 x 0.5 inches
Manufacturer	Shonan Ltd.
Material	Stainless Steel 316 (A4)
Material Type	Stainless Steel 316 (A4)
Model	SSBS-18
Number Of Items	2
Number of Pieces	2
Part Number	SSBS-18
Screw Head Style	Round
Size	2.75 Inch, 2 Pack, Single Ended
Size Name	2.75 Inch, 2 Pack, Single Ended
Warranty Description	1 year warranty

Reviews

A**R

15.04.2025

M**O

15.10.2025

A**S

18.03.2025

R**.

12.03.2026

W**K

26.01.2026

I**H

5.03.2026

S**G

10.04.2026

J**S

24.02.2026

H**S

17.11.2025

D**H

5.02.2025

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 18.26

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered 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 Italy.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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