Unique Bargains 25 Sets M6 x 20mm Carriage Bolt Kit Round Head Square Neck Screws Carriage Bolts Screws Sets Includes Washers and Nuts - Carbon Steel Black Oxide for Fastening Accessories

These carriage bolts are made of low carbon steel with color galvanization, offering high strength and rust resistance without thread breakage in varying temperatures.

The round head and square neck design enables a secure, self-locking fit in square holes, and when used with hex nuts and flat washers, it ensures reliable and stable fastening.

These bolts are ideal for fixing metal to wood in homes and offices, both indoors and outdoors, for securing headboards, doors, bed frames, furniture, and engineering or DIY projects.

This carriage bolt kit includes various sizes to choose from, satisfying a wide range of needs and providing robust structural support across multiple applications.

Customer-friendly notes: Please refer to the product description and images for the item specifications.