1/4” Dia. Zinc-Plated Steel (Grade 5) Huck Bobtail Collar, #BTC5-R8GAHL is for 1/4” small diameter Bobtail Huck bolts:

• 90 Head Style:
  BT90-BR8-4GA, BT90-BR8-6GA, BT90-BR8-8GA, BT90-BR8-10GA, BT90-BR8-12GA, BT90-BR8-14GA, BT90-BR8-16GA, BT90-BR8-18GA & BT90-BR8-20GA.
• 98T Head Style:
  BT98T-R8-4GA, BT98T-R8-6GA, BT98T-R8-8GA, BT98T-R8-10GA, BT98T-R8-12GA, BT98T-R8-16GA, BT98T-R8-18GA & BT98T-R8-20GA.
• BT Head Style:
  BT-BR8-4GA, BT-BR8-6GA, BT-BR8-8GA, BT-BR8-10GA, BT-BR8-12GA, BT-BR8-14GA, BT-BR8-16GA, BT-BR8-18GA & BT-BR8-20GA.

Our Huck Bobtail collars are designed for full metal-to-metal contact around the bolt thread. When installed, our collars allow Bobtail Huck bolts to have no gaps delivering a more secure connection which provides improved reliability in the most severe environments.

Secure, Fast Installation

Combining an advanced fastener design with the latest in easy-to-use, ergonomic installation tooling, the BobTail system delivers a strong connection and sets a new standard for ease of installation.

For Oversized Holes: To optimize clamp, hardened washers such as ASTM F436, DIN 6916 or EN 14399-6 are recommended for use with oversize holes and slots, along with good bolting practice.

Visual Inspection

The installation indicator in the collar flange– a proprietary Huck design – indicates the BobTail collar has been fully swaged on (bottom photo).