Ideal for use outside to protect screw heads from the weather.
eBay
10 Pieces 50ML/15ML/10ML Laboratory Sample Screw Round Bottom Plastic Test Tube Ep Tube with Scale Screw Cap Centrifuge Tube
Aliexpress UK
WHITE PLASTIC HINGED SCREW COVERS WITH SNAP-ON CAP. Cap folds over screw head to protect it from weather. Hole size -4mm/ 0.16". Main body depth -4mm/ 0.16".
eBay
Plastic Multifunction Can Opener Universal Bottle Opener Non-slip Manual Cap Screw Beer Cap Open Twist Tool Kitchen Gadgets
Aliexpress UK
Designed for both practicality and appearance, they neatly conceal the screw head and washer, giving a smooth, professional finish to your roofing, cladding, or panel installation. Choose the ideal option to achieve a seamless, coordinated look while maintaining high functionality.
eBay
100pcs/bag 10ml Centrifugal Tube Screw Cap Cone Bottom Laboratory ToolTransparent Graduation Centrifuge Test Tube Vial Plastic
Aliexpress UK
Plastic construction for durability in both internal and external applications. These are suitable for both internal and external applications. a plastic washer (base), through which the screw or other fixing is inserted, and.
eBay
50Pcs 5ML Plastic Sample Small Bottle Vial Storage Vial Storage Container Test Tube with Screw Caps for Lab powder Sample
Aliexpress UK
Used for covering and masking bolts and nuts and provide professional finishing. to protect and cover bolt head or nut. grey colour finish. made from polyethylene plastic (LDPE).
eBay
10/20pcs Black Hex Caps Cover Plastic Protection Acron Nut Dome Hexagon Screw Bolts Nut M4 M5 M6 M8 M10 M12
Aliexpress UK
For M3.5 and M4 screws. Main body depth - 4mm/0.16".
eBay
50ml To 1000ml Lab Plastic Erlenmeyer Flask Conical Container Bottle With Screw Cap For Laboratory Experiment
Aliexpress UK
Available in Seven Colours. Plastic Hinged Screw Covers. This is to ensure that we can maintain a safe place of work. The safety and health of our staff is paramount. Larger orders (in excess of 2 kg) may be sent via other carriers.
eBay
New 20 Pcs 50ml Screw Cap Flat Bottom Centrifuge Tube Plastic Centrifugal Tubes with Scale Free-standing Laboratory Supplies
Aliexpress UK
Total Depth -6.5mm/0.25". Insert Depth -5mm/0.2".
eBay
10pcs lab 30ml PET Test Tube Bottle Screw Caps Transparent Cylindrical Plastic Refillable Bottle For Mask Candy Storage
Aliexpress UK