Keystone Fastening Technologies
Keystone Fastening Technologies
114 VIP Drive, Wexford, PA 15090
Phone: 1.800.659.5972
Email: info@keystonefastening.com
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Wiring and Tube Clamps (Medium Duty)
Clamping Diameters range from 0.187" - 4.062"
Bolt Hole Diameters include 0.281", 0.343", 0.406", 0.468", 0.531"
Materials/finishes available include G90 galvanized steel, aluminum and stainless steel
Aluminum available from .187" - 2.000" clamping diameter in 09 series
Stainless Steel available from .375" - 2.000" clamping diameter in 09 series
Call for pricing.

CO Clamps - Photo
Unit of Measure
1 2 3 4 5 

Item #

Clamping Diameter (D2) ±.015

Hole Diameter (H) ±.005

Width (W) ±.010

Hole Center To End (E) ±.015

Slot Length (S) ±.020

Center To Center (L) ±.031

CO-3315 N/A 2.062 " N/A 0.468 " N/A 0.875 " N/A 0.500 " N/A 0.562 " N/A 1.625 "
CO-3317 N/A 2.062 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 0.625 " N/A 1.687 "
CO-3409 N/A 2.125 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 0.375 " N/A 1.468 "
CO-3411 N/A 2.125 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 0.437 " N/A 1.531 "
CO-3413 N/A 2.125 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 0.500 " N/A 1.593 "
CO-3415 N/A 2.125 " N/A 0.468 " N/A 0.875 " N/A 0.500 " N/A 0.562 " N/A 1.656 "
CO-3417 N/A 2.125 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 0.625 " N/A 1.718 "
CO-3509 N/A 2.187 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 0.375 " N/A 1.500 "
CO-3511 N/A 2.187 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 0.437 " N/A 1.562 "
CO-3513 N/A 2.187 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 0.500 " N/A 1.625 "
CO-3515 N/A 2.187 " N/A 0.468 " N/A 0.875 " N/A 0.500 " N/A 0.562 " N/A 1.688 "
CO-3517 N/A 2.187 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 0.625 " N/A 1.750 "
CO-3609 N/A 2.250 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 0.375 " N/A 1.531 "
CO-3611 N/A 2.250 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 0.437 " N/A 1.593 "
CO-3613 N/A 2.250 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 0.500 " N/A 1.656 "
CO-3615 N/A 2.250 " N/A 0.468 " N/A 0.875 " N/A 0.500 " N/A 0.562 " N/A 1.718 "
CO-3617 N/A 2.250 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 0.625 " N/A 1.781 "
CO-3709 N/A 2.312 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 0.375 " N/A 1.562 "
CO-3711 N/A 2.312 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 0.437 " N/A 1.625 "
CO-3713 N/A 2.312 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 0.500 " N/A 1.687 "
CO-3715 N/A 2.312 " N/A 0.468 " N/A 0.875 " N/A 0.500 " N/A 0.562 " N/A 1.750 "
CO-3717 N/A 2.312 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 0.625 " N/A 1.812 "
CO-3909 N/A 2.437 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 0.375 " N/A 1.625 "
CO-3911 N/A 2.437 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 0.437 " N/A 1.687 "
CO-3913 N/A 2.437 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 0.500 " N/A 1.750 "
CO-3915 N/A 2.437 " N/A 0.468 " N/A 0.875 " N/A 0.500 " N/A 0.562 " N/A 1.812 "
CO-3917 N/A 2.437 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 0.625 " N/A 1.875 "
CO-4109 N/A 2.562 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 0.375 " N/A 1.687 "
CO-4111 N/A 2.562 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 0.437 " N/A 1.750 "
CO-4113 N/A 2.562 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 0.500 " N/A 1.812 "
CO-4115 N/A 2.562 " N/A 0.468 " N/A 0.875 " N/A 0.500 " N/A 0.562 " N/A 1.875 "
CO-4117 N/A 2.562 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 0.625 " N/A 1.937 "
CO-4309 N/A 2.687 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 0.375 " N/A 1.750 "
CO-4311 N/A 2.687 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 0.437 " N/A 1.812 "
CO-4313 N/A 2.687 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 0.500 " N/A 1.875 "
CO-4315 N/A 2.687 " N/A 0.468 " N/A 0.875 " N/A 0.500 " N/A 0.562 " N/A 1.937 "
CO-4317 N/A 2.687 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 0.625 " N/A 2.000 "
CO-4509 N/A 2.812 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 0.375 " N/A 1.812 "
CO-4511 N/A 2.812 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 0.437 " N/A 1.875 "
CO-4513 N/A 2.812 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 0.500 " N/A 1.937 "
CO-4515 N/A 2.812 " N/A 0.468 " N/A 0.875 " N/A 0.500 " N/A 0.562 " N/A 2.000 "
CO-4517 N/A 2.812 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 0.625 " N/A 2.062 "
CO-4709 N/A 2.937 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 0.375 " N/A 1.875 "
CO-4711 N/A 2.937 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 0.437 " N/A 1.937 "
CO-4713 N/A 2.937 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 0.500 " N/A 2.000 "
CO-4715 N/A 2.937 " N/A 0.468 " N/A 0.875 " N/A 0.500 " N/A 0.562 " N/A 2.062 "
CO-4717 N/A 2.937 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 0.625 " N/A 2.125 "
CO-4909 N/A 3.062 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 0.375 " N/A 1.937 "
CO-4911 N/A 3.062 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 0.437 " N/A 2.000 "
CO-4913 N/A 3.062 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 0.500 " N/A 2.062 "
Unit of Measure
1 2 3 4 5