COUPLERS GRADE 80 KSI ITEMS
Part No. Bar Size O.D Length
No. Inches mm Inches mm Inches mm
C2280M 7 7/8" 22 1.50 38 4.33 110
C2580M 8 1" 25 1.77 45 4.53 115
C2880M 9 1-1/8" 28 1.89 48 4.92 125
C3280M 10 1-1/4" 32 2.24 57 5.51 140
C3680M 11 1-3/8" 36 2.50 63.5 5.91 150
C4380M 14 1-3/4" 43 2.99 76 7.62 193.5
C5780M182-1/4"573.74958.66220
C6380M202-1/2"634.0210210.24260
C7580M243"754.4911411.81300
C8980M283-1/2"89512713.39340
C10080M324"1005.5114015380
FULL LOAD NUT GRADE 80 KSI ITEMS
Part No. Bar Size O.D Length
No. Inches mm Inches mm Inches mm
RN2280M77/8"221.5381.7745
RN2580M81"251.77451.9750
RN2880M91-1/8"281.89482.3660
RN3280M101-1/4"322.24572.5665
RN3680M111-3/8"362.563.52.7670
RN4380M141-3/4"432.99763.7495
RN5780M182-1/4"573.74954.33110
RN6380M202-1/2"634.021024.53115
RN7580M243"754.491145.71145
RN8980M283-1/2"895.241336.69170
RN10080M324"1005.751467.5190.5

Coupler Information

Stressbar Steel Systems International, Inc. distributes couplers for all available bar sizes. Our bars are continuously threaded along their entire length and are easily coupled to eliminate the need for field lap spicing. Couplers are designed and manufactured to develop 125% of the published yield strength of the threaded bars.

With our clients in mind, SSSI can ship couplers pre-attached to threaded bars for ease of installation on site. Shipped in easy to handle bundles, our material can be picked up and placed by hand. The following images display projects utilizing our bars and couplers without steel templates. in this case, the "loose" bars with pre-attached couplers were installed individually from the story below.

Installation Procedure Grade 80 + 97 Couplers

  • Mark each bar to be coupled with tape or paint at a distance of half the length of the coupler from bar ends.
  • Fully thread the coupler onto one bar.
  • Align the adjacent bar with the bar containing the coupler.
  • Spin the coupler over the adjacent bar until half of the coupler engages each bar to expose markings on both bars.
  • Align the adjacent bar with the bar containing the coupler.
  • Wrench tight the upper bars to cut slack and secure couplers.