Are they uv resistant rated. need them for a boat so the ones i use needs to be ultra violet rated.

Don’t know 100 percent certain that the material is UV resistant. My application is indoors for this particular product, with minimal sun exposure through “e” (Reduces UV transmission) glass. I have used “similar”caps (Home Depot) to protect kids from protruding screws on outdoor equipment and those hold well to weather extremes ice and continuous hot sun. And likely made of the same plastic material.

What is the screw size both "S" & "M" ?

Tony, the screw size for S can be a #5, #6, and or a #8 Screw. The hole diameter for the screw cover caps is 4MM or 0.16 inch. The screw size for M can be a #6, #8, and or a #10. In Metric, it would be a M3, M4, and or a M5. The M size hole diameter is 5MM or 0.19 inch. Edward M.

Is the 0.51 the inside measurement or the outside. If it’s the outside what is the inside measurement?

0.51 (13MM) is the outside measurement. The inside measurement is 0.16 (4MM)

Can M6 screws/bolts fit through these?

Screws yes, bolts no... unless they were recessed flush heads.

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Hotop 100 Pieces Hinged Screw Cover Caps Plastic Shutter Fold Screw Snap Covers Washer Flip Tops(Large,Black)

Product ID: 537914826

Details

Material
Plastic
Brand
Hotop
Color
Black
Item Weight
0.1 Kilograms
Number of Items
100

🎯Precision fit with 3 size options

🔩100 pcs for bulk projects

🛡️Waterproof & rust-resistant

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€ 14.29

Duties & taxes included

In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔩 Snap, Seal, and Style Your Space with Confidence!

BULK SUPPLY - 100-piece set ensures you’re always stocked for maintenance or upgrades
TAILORED FIT - Available in small, medium, and large sizes to match your screw specs
VERSATILE USE - Perfect for home, office, school, and outdoor spaces—upgrade any surface
DURABLE SLEEK - Premium plastic with a glossy finish that resists fading and wear
EFFORTLESS INSTALLATION - Hinged design snaps on quickly for seamless screw protection

The Hotop 100 Pieces Hinged Screw Cover Caps offer a durable, waterproof solution to protect and beautify screws in various environments. Featuring a convenient hinged design and available in three precise sizes, these black plastic caps provide a neat, rust-resistant finish ideal for professional and home use alike.

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