Glands and grommets come down to two things: how the cable enters and what the opening needs to do once it’s in. If you need a sealed entry, you’re into cable glands. If you’re protecting the edge of a panel or box, cable grommets are usually the neater, cheaper answer. Brass cable glands suit fittings that take more abuse or need a firmer lock-up. Plastic versions work well for lighter duty and quicker jobs. The usual mistake is buying on thread size alone, then finding the cable or panel detail doesn’t suit.
Metpro Box Lid Rubber Gasket
Black rubber gasket for junction box lids, weatherproof seal.
Unicrimp Closed Cable Grommets - 20mm Black 100 Pack
20mm closed cable grommets in black PVC, pack of 100
Wiska F/R Membrane - M20
Wiska EMT-F 20 flame retardant membrane grommet, IP66
WFD M20 x 1.5 Domed Cable Gland - 20mm Black Individual
20mm black domed cable gland, M20 x 1.5 thread, for 7.0-10.0mm cables.
Wiska Locknut EMUG - M20 Polyamide Black
M20 black polyamide locknut, fibre reinforced for threaded connections
Niglon Blind Grommets - 25mm black 100 pack
Black PVC blind grommets, 25mm, pack of 100.
Niglon BW Gland Pack - 32mm 2 complete terminations
Niglon 32mm BW gland pack containing 2 complete terminations.
Wiska BW Economy Gland - M20S 2 Pack
Economy indoor SWA gland, M20S thread, pack of 2
Unicrimp QGT5B Grommet Strip Edge Roll - 5mm x 8mm x 5m Black
Black grommet strip edge roll, 5mm x 8mm x 5m
Wiska Sprint ESKV Cable Gland Pack - M32, 13mm - 21mm Polyamide Black
M32 polyamide cable gland for 13mm-21mm cables, black.
What usually decides glands and grommets is the entry itself. You’re either after a neat panel finish, a tighter seal, or simple edge protection where the cable passes through. The job usually points you to the right option before price comes into it. Cable glands are the one you reach for when you need more grip or sealing. Cable grommets are the quicker answer where the hole just needs tidying and protection.
If the entry needs sealing as well as strain relief, cable glands are the one you pick. If you’re only protecting a panel edge or a drilled hole, cable grommets usually do the job with less fuss. That’s the first split I’d make at the counter.
Within Cable & Cable Management, the rest of the choice comes down to how exposed the run is and how much movement you expect. Electrical glands suit the more demanding entries. Electrical grommets are the neater answer where you only need to stop chafing. The usual mistake is over-specifying a gland where a grommet would have been enough, or using a grommet when the cable needs proper hold.
Material usually settles it. Brass cable glands suit jobs that need a firmer fit and more abuse resistance. That matters where the entry is exposed or the install gets handled a lot before it’s finished.
Plastic cable glands are lighter and usually quicker to fit in quantity. They make sense on less demanding runs where you do not need metal strength. Brass gives you more confidence at the entry. Plastic keeps the job quicker and cheaper.
If you’re working alongside Metal Conduit & Accessories, brass usually sits better with the rest of the kit. For lighter runs of Cable, plastic is often enough.
Once you’ve picked the glands and grommets, the next call is what the entry is going into. A panel or enclosure needs a clean, secure finish at the hole. If the opening is rough or the edge is exposed, you may need a different fixing detail so the cable is not left rubbing.
If the run passes through metalwork, check the surrounding finish as well. A neat entry into a panel often saves a call-back later. Where the job also needs containment or a protected route, the next buy is often metal conduit and accessories rather than more cable management bits.













