1/4" x 1-3/4" Conquest T-30 Flat Head Concrete Screw - 410 Stainless Steel, Pkg 100 Synthetic Self-Retracting Lifelines The smaller O-ring can pass

The smaller O-ring can pass through for a choke-on installation

(4) E-Track tie downs with heavy-duty round rings

Grade 55 Carbon Steel: Meets ASTM A449/A615 specs for structural applications

you have a 1

1/4" x 1-3/4" Conquest T-30 Flat Head Concrete Screw - 410 Stainless Steel, Pkg 100 Synthetic Self-Retracting Lifelines The smaller O-ring can pass1 4" x 1 3 4" Conquest T 30 Flat Head Concrete Screw 410 Stainless Steel, Pkg 100 The 1 4 inch by 1 3 4 inch Conquest T 30 Flat Head Concrete Screw in 410 stainless steel is engineered for reliable masonry fastening with added corrosion resistance. It threads directly into concrete, brick, or block, eliminating anchor hardware while maintaining strong holding performance. Supplied in packs of 100 for professional use. T 30 Star Drive 410 Stainless