Simpson Strong-Tie® DIA25 Threaded Drop-In Anchor, 1/4 in, 3/8 in Drill, 1 in
Item #BC788390

Simpson Strong-Tie® Drop-In Anchor, Threaded, 1/4 in Bolt/Rod Size, 1/4-20, Carbon Steel, 3/8 in Drill, 1 in Minimum Embedment Depth, 3/8 in Thread Length, UNC, 1 in Overall Length, 490 lb at 2000 psi/3000 psi/4000 psi for Concrete Shear Strength, 350 lb at 2000 psi/405 lb at 3000 psi/460 lb at 4000 psi for Concrete Tensile, Zinc Plated
  • Lipped edge (DIAS) eliminates need for precisely drilled hole depth
  • Available in coil-thread version for 1/2 in and 3/4 in coil-threaded rod
  • 2600 to 2700 deg F freezing/melting point
  • Expander plug meets minimum 50000 psi tensile strength
  • Anchor body meets minimum 70000 psi tensile
  • The allowable loads are based on a safety factor of 4
  • The minimum concrete thickness is 1-1/2 times the embedment depth
Bolt/Rod Size1/4 in
Drill Size3/8 in
FinishZinc Plated
MaterialCarbon Steel
Minimum Embedment Depth1 in
Overall Length1 in
Shear Strength490 lb at 2000 psi/3000 psi/4000 psi for Concrete
Tensile Strength350 lb at 2000 psi/405 lb at 3000 psi/460 lb at 4000 psi for Concrete
Thread Length3/8 in
Thread Size1/4-20
Thread TypeUNC
TypeThreaded
WarrantyLimited