Straight rod coupling

Straight rod coupling

  • Certificate: ISO
  • Standard: NFPA 13, UL 203, GB/T 17116.3
  • Material: CS per ASTM A108 / ISO 898-1, SS per 304 / 316
  • Thread: Imperial, UNC, Class 2A per ANSI B1.1
    Metric, coarse thread, 6g per ISO 965-1
  • Surface: CS, mill finish / zinc electroplated / hot-dip galvanized
    SS, mill finish / passivated

Product Details

Straight rod coupling is designed to join hanger rod of equal diameter, or to connect expansion anchor directly to hanger rod. It delivers precise alignment and reliable load transfer while effectively resisting upward thrust, vibration, and thermal movement. By simplifying installation and ensuring long-term pipe stability, it is a trusted component for fire sprinkler and mechanical piping systems.

Available size (Imperial)

Rode size (RS) Length (L, inch) Hex width (e, inch) Max rec. load (lbs) Ref. No.
1/4″ 7/8″ 3/8″ 240 P7801 (ISO)
3/8″ 1-3/4″ 5/8″ 730 P7802 (ISO)
1/2″ 1-3/4″ 11/16″ 1350 P7803 (ISO)
5/8″ 2-1/8″ 13/16″ 2160 P7804 (ISO)
3/4″ 2-1/4″ 1″ 3230 P7805 (ISO)
7/8″ 2-1/2″ 1-1/4″ 4480 P7806 (ISO)
1″ 2-3/4″ 1-3/8″ 5900 P7807 (ISO)

Note: The load is based on carbon steel material at temperature range -29°C to 343℃ (-20°F to 650°F).

Available size (Metric)

Rode size (RS) Length (L, mm) Hex width (e, mm) Max rec. load (kN) Ref. No.
M6 20 10 0.9 P7821 (ISO)
M8 25 13 1.8 P7822 (ISO)
M10 32 16 2.8 P7823 (ISO)
M12 38 17 4.0 P7824 (ISO)
M16 50 21 7.0 P7825 (ISO)
M20 63 25 11.5 P7826 (ISO)
M24 80 35 16.6 P7827 (ISO)

Note: The load is based on carbon steel material at temperature range -29°C to 343℃ (-20°F to 650°F).

Ask For A Quick Quote

Email us at info@tpmcsteel.com or use the form below. Normally you will be replied within 2 hours during support hours.