Powers 3/8" x 1 7/8" Rod Hanger Lok-BoltĀ® 5815S Box of 50. The Lok-Bolt anchor is a pre-assembled single unit sleeve anchor available in carbon steel and stainless steel which can be used in concrete, block, brick and stone. Extension sleeves are added to create longer lengths. MSRP: Was: Now: $36.09 Add to Cart Compare