1.00ft Bore Clamping Two Piece Shaft Collar (4 Pack) - Durable 303 SS

In this review the 1.00' bore clamping two piece shaft collar (4 pack) is evaluated for workshop and marine use; the single biggest reason to buy is its reliable, even clamping in corrosive or wet environments. Coastal Machine Works supplies four precision-made split collars in 303 stainless steel that are deburred, engraved with the bore size, and fitted with stainless socket head screws, making them a sensible choice for anyone wanting a durable clamp-on solution that can be installed without removing other shaft components.

Key Features

• Two-piece design: Allows installation anywhere along the shaft without sliding off the end, saving time and avoiding disassembly of adjacent parts.
• 303 stainless steel construction: Provides strong corrosion resistance suitable for wet environments and light chemical exposure.
• Precision machining: Deburred edges and engraved ID on the front face make identification simple and reduce the risk of sharp edges.
• Included hardware: Two 1/4-28 x 5/8 stainless socket head screws per collar deliver even clamping pressure and a secure hold.
• Pack of four: Offers value and convenience for projects that require multiple collars or spare parts.

Who It's For

This product is well suited to hobbyists, machinists, marine technicians, and fabricators who need a robust clamp-on collar that resists corrosion and provides high clamping force without marring shafts. The two-piece design and clear bore engraving make these collars practical for maintenance tasks, propeller drives, and setups where components cannot be slid off the shaft.

Those who should look elsewhere include users who need a different bore size or metric hardware, and applications demanding ultra-high-strength alloys beyond 303 stainless properties; for those needs a specialized collar or material would be more appropriate.

Pros & Cons

Pros

• High-quality 303 stainless steel construction delivers good corrosion resistance and a professional finish.
• Two-piece split design offers strong, even clamping without shaft damage compared to set-screw styles.
• Each collar is deburred and engraved for quick identification and safer handling.
• Pack of four with screws provides immediate value and readiness for multi-part jobs.

Cons

• Some customers report slight variations in bore accuracy, so precision fits should be verified before final installation.
• Not suitable for applications requiring exotic alloys or metric fasteners.

Specifications

Our Verdict

The 1.00' bore two-piece stainless shaft collar is a practical, well-made choice for most marine, industrial, and hobby applications that need corrosion resistance and strong clamp force. Its two-piece fit, engraved IDs, and included hardware make it good value for users who need reliable clamp-on performance without risk of shaft marring; check bore tolerance if an exact interference fit is required.

Frequently Asked Questions

Can these collars be installed without removing other components?
Yes. The two-piece split design allows the collar to be assembled around the shaft in place without sliding off the end.

Are these collars suitable for wet or corrosive environments?
Yes. They are made from 303 stainless steel, which offers good corrosion resistance for wet conditions and mild chemical exposure.

Do the screws come with the collars?
Yes. Each collar in the 4 pack includes its corresponding 1/4-28 x 5/8 stainless socket head screws.