Lock-Jaw One Barbell Collars - for 1" bars

A 2" Olympic collar won't seat correctly on a smaller 1" bar — the ONE collar is purpose-built with a smaller frame and cam-lock sized specifically for that diameter.

Standard barbell collars are sized for the 2" Olympic sleeve, so they're loose and unreliable on the smaller 1" bars found on some older, budget, or specialty equipment. The ONE collar's injection-molded nylon frame and single-action cam lock are built to the tighter 1" tolerance from the ground up, not a scaled-down Olympic collar — so it seats securely rather than rattling loose during use.

Yes — the single-action cam lock and quick latch are designed for smooth, hassle-free operation, including for smaller hands.

The ONE collar's compact size and simplified cam-lock action make it easier to grip and operate than some larger Olympic collars, which is part of why it's a common pick for home gyms and group exercise classes where user experience levels vary widely. No twisting, no threading — just a single lever motion to lock or release.

A solid injection-molded nylon frame with thick rubber compression pads.

The nylon frame gives the ONE collar rigidity in a compact package, while thick rubber compression pads grip the bar sleeve firmly without marking the finish. At just 0.25 lbs per collar, it's the lightest collar in the Lock-Jaw lineup — appropriate for the smaller 1" bar it's designed around.

3 color options. Sold as a pair — one order equips one 1" barbell.

The ONE collar ships in 3 colors and, like every Lock-Jaw collar, comes as a pair per order so you can equip both ends of a single barbell in one purchase.

Yes — every Lock-Jaw collar carries a 1-year manufacturer warranty against defects in material or workmanship.

As an authorized Lock-Jaw dealer, Blue Sky Fitness Supply handles warranty claims on your behalf — you're not chasing the manufacturer directly. The 1-year term covers manufacturing defects in the locking mechanism, frame, and finish under normal training use. Full coverage and exclusion details are on our warranty information page under the Lock-Jaw section.

Orders process within 3 business days and typically arrive within 3-5 business days of shipment.

Lock-Jaw collars are small parcel items, so there's no freight or liftgate to schedule — they ship the same way as any small package. For facility buyers ordering collars alongside racks, bars, or plates, we can bundle the order onto one purchase order so there's a single document to process. Full shipping details, including current rates, are on our shipping policy page under the Lock-Jaw section.

Contact us within 30 days of placing your order to request a return. Requests made outside that window may not be approved.

Blue Sky Fitness Supply requests that customers who wish to return purchased goods for any reason reach out within 30 days of placing their order. This gives you a full month to try the collars in your training before the return window closes. Full return and refund policy details are on our return and refund policy page under the Lock-Jaw section.

Lock-Jaw collars are designed and manufactured in the USA by Avus Design, a California-based company focused on barbell collar design and clamping technology.

Lock-Jaw's collars are used in universities, professional sports weight rooms, gyms, and high schools — environments that demand reliability under constant, heavy daily use. The Solid Metal collar line was developed in conjunction with powerlifting strongman Leroy "The Machine" Walker, reflecting the brand's focus on maximum clamping force for serious lifters. As an authorized Blue Sky dealer product, every Lock-Jaw collar you buy from us is backed by the manufacturer's 1-year warranty.