Single Pack of Simpson Strong-Tie Structural Steel Fastening Pin. Fasteners for Simpson Strong-Tie Powder-Actuated Tools. Manufactured with tight tolerances for superior performance. Use in A36 and A572 Grade 50 structural steel (red strip load recommended). 0.157" shank diameter for greater compressive strength. No. PDPA-50K: Shank Length: 1/2 In., Head Diameter: 0.300 In., Pkg Qty: 100, Package Type: Box No. PDPA-75: Shank Length: 3/4 In., Head Diameter: 0.300 In., Pkg Qty: 100, Package Type: Box No. PDPA-100: Shank Length: 1 In., Head Diameter: 0.300 In., Pkg Qty: 100, Package Type: Box No. PDPA-125: Shank Length: 1-1/4 In., Head Diameter: 0.300 In., Pkg Qty: 100, Package Type: Box No. PDPA-150: Shank Length: 1-1/2 In., Head Diameter: 0.300 In., Pkg Qty: 100, Package Type: Box No. PDPA-200: Shank Length: 2 In., Head Diameter: 0.300 In., Pkg Qty: 100, Package Type: Box No. PDPA-250: Shank Length: 2-1/2 In., Head Diameter: 0.300 In., Pkg Qty: 100, Package Type: Box No. PDPA-287: Shank Length: 2-7/8 In., Head Diameter: 0.300 In., Pkg Qty: 100, Package Type: Box ⚠ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.