سلسلة قضبان الشدProduced on CNC thread-rolling lines for burr-free threads and consistent geometry. DW15 (15mm root / 17mm outer thread, 7.5mm pitch) third-party tested tensile capacity by material: Q235 100-110 kN, 45# 120-140 kN, 40Cr 140-160 kN, precision-rolled 180 kN (values are tested tensile, not allowable working load — divide by the applicable safety factor for design); Rd20 reaches approximately 230 kN rated per factory data. Threads follow DIN 976, A193 B7 or GB/T 15389; materials range from Q235 to 45#, 40Cr and 20MnTiB with plain, electro-galvanized, hot-dip galvanized or Dacromet finishes.
- D15/17 all-thread rod (DW15, 17/10 thread), 1.47–1.50 kg/m
- Third-party tested tensile: Q235 100-110 kN · 45# 120-140 kN · 40Cr 140-160 kN · precision-rolled 180 kN (tested tensile, not allowable working load)
- Also available: D20/22 (2.60 kg/m, tested tensile 210-240 kN by material) — see D20/22 Form Tie Rod
- Length 200–8000mm, cut to length