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LSES Lag Screw Expansion Shield

LSES

The Lag Screw Expansion Shield is a die-cast zinc alloy expansion shield for anchoring lag screws in a variety of base materials, including concrete, concrete block, brick and mortar joints. Radial ribs provide additional holding power in softer material.

Material

Die-cast Zamac 3 alloy

Installation

  1. Drill a hole in the base material using the appropriate diameter carbide drill bit as specified in the table. Drill the hole to the specified embedment depth plus 1/8" for flush mounting and blow it clean using compressed air. Alternatively, drill the hole deep enough to accommodate embedment depth and dust from drilling. Overhead installations need not be blown clean.
  2. Insert anchor into hole. Tap with hammer until flush with surface of base material.
  3. Position fixture, insert screw and tighten.

Caution

Oversized holes may make it impossible to set the anchor and will reduce the anchor's load capacity.

Related Literature

Product Information Tables

LSES Product Data and Allowable Tension Loads in Normal-Weight Concrete
Size (in.) Model No. Drill Bit Dia. (in.) Embed. Depth (in.) Allowable Tension Load (lb.) Quantity
f'c ≥ 3,000 psi Box Carton
1/4 Short LSES25S 1/2 1 90 100 500
5/16 Short LSES31S 1/2 1 1/4 100 100 500
3/8 Short LSES37S 5/8 1 3/4 220 50 250
1/2 Short LSES50S 3/4 2 250 25 125
1/4 Long LSES25L 1/2 1 1/2 120 50 250
5/16 Long LSES31L 1/2 1 3/4 150 50 250
3/8 Long LSES37L 5/8 2 1/2 260 50 200
1/2 Long LSES50L 3/4 3 310 25 100
  1. The allowable loads listed are based on a safety factor of 4.0.
  2. The minimum concrete thickness is 1 1/2 times the embedment depth.
  3. Screw is not included.