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Exposed bolt ends, cut cable tips, and sharp rod edges are a constant hazard in workshops, garages, and job sites. DIYers and tradespeople need a fast, reusable solution that doesn't peel off like tape or crack like brittle plastic covers.
These flexible PVC end caps are made from new-material vinyl — soft enough to stretch over threads, firm enough to grip without slipping. Available in inner diameters from φ1.3mm (approx. 0.05 in) to φ90mm (approx. 3.54 in), with cap lengths typically ranging from 15mm to 50mm. Pack sizes from 1 to 100 pieces let you stock exactly what you need.
Use them to cap threaded rods on shelf brackets, insulate terminal lugs in control panels, protect M-series bolts during painting, cover cut PVC pipe ends, or tip furniture legs and tripod feet. Wherever a sharp or exposed end needs covering, these caps handle it in seconds.
Cap exposed bolt ends on shelving, furniture hardware, and wall anchors to prevent scratches and injuries during assembly or rearranging.
Protect threaded rod ends and precision shafts from thread damage, paint, and contamination during machining, coating, or storage.
Insulate terminal lugs, grounding studs, and exposed wire ends in control panels and junction boxes with non-conductive PVC caps.
Protect tripod leg tips, camera rail ends, and light stand feet from scratches and floor damage with soft, grip-friendly PVC covers.
| Material | PVC (vinyl) — new material, flexible and durable |
|---|---|
| Color | Black (standard); custom colors available on request |
| Inner Diameter Range | φ1.3mm – φ90mm (see variant options above) |
| Cap Length | Typically 15mm – 50mm depending on diameter; see variant options |
| End Style | Open base, sealed rounded tip (closed end) |
| Thread Compatibility | Push-fit — not threaded; fits metric and imperial screws, bolts, rods, and tubes |
| Key Properties | Electrically insulating, flexible, corrosion-resistant, reusable, vibration-dampening |
| Pack Size Options | 1 pcs, 5 pcs, 10 pcs, 20 pcs, 50 pcs, 100 pcs |
| Applications | Thread protection, pipe end caps, cable insulation, rod ends, furniture leg tips, tripod covers, mechanical fittings |
| Brand | Goobetter |
These caps are push-fit, not threaded, so they work with both metric and imperial sizes. Match the cap's inner diameter to your screw or rod's outer diameter. The PVC stretches slightly, so going 0.5mm smaller than your rod diameter gives a tighter, more secure grip.
Yes — PVC is a good dielectric insulator and these caps are commonly used to cover exposed wire ends, terminal lugs, and grounding studs in low-voltage control panels and junction boxes. They are not rated for high-voltage live work; use properly certified insulating boots for that application.
Choose a cap inner diameter that is typically 0.5mm to 1mm smaller than your rod or thread outer diameter. The tight PVC grip resists most vibration. For permanent installation, a small amount of silicone adhesive inside the cap will hold it securely, though it will no longer be reusable.
Black is the standard in-stock color. Custom colors such as white, red, yellow, and blue are generally available on request. Minimum order quantities may apply for custom colors — contact us for details.
These caps are designed to cover the exposed end tip, with lengths typically ranging from 15mm to 50mm depending on diameter. For longer coverage, contact us about custom lengths. For most standard screws and bolts, a 15–30mm cap covers the protruding end completely.
Dip the cap in hot water for about 10 seconds — the PVC softens and expands slightly, making it much easier to push onto the rod or thread. Also, lightly chamfering or filing any sharp burrs on the rod end before installation prevents the PVC from snagging or tearing.
Yes. The flexible PVC material allows the caps to be pushed on and pulled off many times without losing their grip or shape, making them ideal for temporary thread protection during painting, shipping, or storage.
