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Silver steel lag bolt six inches long with hexagonal head

Zoro Select

Zoro Select 29NH37 Lag Bolt 6in Steel

SKU CH-NC3M-E7WHJ

A 6-inch steel lag bolt for securing parking curb stops and speed bumps to concrete

  • Secures parking curbs and speed bumps with a 6 in steel lag bolt
  • Installs directly into concrete for a firm, lasting hold
  • Compatible with ten Zoro Select part numbers for easy matching
  • Silver steel finish resists corrosion in outdoor marine environments
  • Lightweight at 0.23 lb for simple handling and alignment

Zoro Select 29NH37 Lag Bolt for Concrete

The Zoro Select 29NH37 is a 6 in steel lag bolt intended for securing parking curb stops and speed bumps to concrete surfaces. It is designed for contractors and facility managers who need a direct fastening method for traffic-calming hardware.

Installation limited to concrete mounting surfaces

This fastener requires a concrete installation surface and is not rated for asphalt, wood or other substrates. The 5/16 in height and 7/8 in width define the bearing area, so the drilled hole and anchor must match these dimensions for proper load transfer.

Straightforward drive-in installation

The bolt installs with common impact or hand tools into a pre-drilled concrete hole. Misalignment or an undersized hole are the most frequent causes of reduced holding power or bolt damage during installation.

Highlights

  • Secures parking curbs and speed bumps with a 6 in steel lag bolt
  • Installs directly into concrete for a firm, lasting hold
  • Compatible with ten Zoro Select part numbers for easy matching
  • Silver steel finish resists corrosion in outdoor marine environments
  • Lightweight at 0.23 lb for simple handling and alignment

Specifications

BrandZORO SELECT

Questions about this item

Which lag bolt length matches the 6 in dimension shown for the 29NH37 model?

The 29NH37 is the 6 in lag bolt; other part numbers in the compatible list such as 29NH30 through 29NH36 and 29NH38 through 29NH42 correspond to different lengths or variants.

What does the 6 in length mean when the bolt is installed in concrete?

A 6 in steel lag bolt driven into concrete provides roughly 6 in of embedment for anchoring parking curb stops or speed bumps securely.

What installation surface and diameter does the 7/8 in width imply for this lag bolt?

The 7/8 in width is the head size for driving the bolt; the product is specified for concrete installation surfaces and uses a standard lag thread for that material.

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