Olympic Screw Clamp Collars - 1 Pair

Olympic Screw Clamp Collars - 1 PairBuilt to lock plates down and keep them there. These screw clamp collars use a threaded mechanism instead of a spring, so once tightened, plates stay put through every rep, set and drop. The design fits Olympic 50 mm bars and plate loaded handles, and where most barbell collars slip on slightly undersized sleeves, the screw thread bites into 48 mm and 49 mm bars too. That makes them a fix for older barbells, budget bars and loading pins that fall

Built to lock plates down and keep them there. These screw clamp collars use a threaded mechanism instead of a spring, so once tightened, plates stay put through every rep, set and drop. The design fits Olympic 50 mm bars and plate-loaded handles, and where most barbell collars slip on slightly undersized sleeves, the screw thread bites into 48 mm and 49 mm bars too. That makes them a fix for older barbells, budget bars and loading pins that fall slightly outside the Olympic spec.

Secure Lockdown for Olympic and Non-Standard Barbells

The screw mechanism gives you full tension control. Tighten as much or as little as you need, and trust the plates won't shift mid-set. No spring fatigue, no slippage, no rattle. For squats, deadlifts, presses and so on. That translates to a smoother bar path and one less variable to think about under load.

At 2.5 cm wide, these collars take up minimal sleeve space, which is exactly why they work so well on loadable dumbbells. Standard collars often eat too much room on short dumbbell handles and limit how many plates you can stack. The narrow profile here lets you load closer to the maximum capacity of your handle without sacrificing security. On loadable dumbbells, you can load significantly more than with standard collars.

The Olympic 50 mm fitting suits any standard Olympic barbell, plate-loaded handle, EZ curl bar with Olympic sleeves and most fixed weight pin systems. The grip on slightly smaller bars is what sets the screw design apart from spring or clip-style options.

Specifications

• Fitting: Olympic 50 mm / also compatible with 48 mm and 49 mm bars
• Width: 2.5 cm per collar
• Locking mechanism: Screw clamp / threaded
• Weight: approx. 1.2 kg per pair
• Best suited for: Olympic barbells, loadable dumbbells, plate-loaded handles
• Sold as Pair

FAQ

Will these collars work on a non-Olympic barbell? 
Yes. While built for 50 mm Olympic sleeves, the screw mechanism tightens down on 48 mm and 49 mm bars where spring collars and clip-on clamps lose grip. That covers most older or budget barbells.

Are screw collars better than spring collars or quick-release clamps? 
Spring collars rely on tension quick-release clamps depending on a precise sleeve diameter. A screw collar adapts to the bar and holds firm regardless of how worn or slightly off-spec the sleeve is.

Can I use these on loadable dumbbells with limited sleeve space? 
That's one of the main use cases. The 2.5 cm width leaves room for more plates compared to standard 4–5 cm collars, so you get closer to your handle's full loading capacity.