Tension Key Block Diagram

Legend for Tension Key Block

A = 1 1/2"
B = 1"
C = 7/16"
D = 11/16"
E = 13/32"
F = 7/32"
G = 1/2"
H = 3/8"
J = 3/16" DIAMETER THROUGH BLOCK.
K = DRILL AND TAP 8-32 THROUGH TO "J" HOLE / CENTRAL TO "C" AND "E"
DIMENSIONS. 2 PLACES.
L = 3/8"
M = 3/4"
N = DRILL AND TAP 4-40 BY 1/4" DEEP. 2 PLACES.

NOTE* MAKE TWO SMALL INSERTS TO GO INTO THE "K" HOLES AND PREVENT THE
SCREWS FROM MARRING THE TENSION KEY SHAFT

Tension Key Shaft & Handle

Legend for Tension Key Shaft, and Tension Key Handle

A = 2 1/4"
B = 1/4"
C = 7/32"
D = 3/4"
E = 3/16" DIA. RUNNING FIT WITH HOLE "J" IN TENSION KEY BLOCK
F = 3/16" DIA. PRESS ON OR CEMENT TO "L" DIA. *
G = 1/4"
H = 5/16"
J = 1 5/16"
K = 5/16" DIA.
L = 3/16" DIA. *
M = 3/64" DIA.CENTRAL TO " E" DIA.

*NOTE - WHEN ASSEMBLING HANDLE TO SHAFT ( HOLE "F" TO "L" DIA.), HOLE "M"
IN SHAFT SHOULD BE AT RIGHT ANGLES TO HANDLE DIMENSION "J"

EXCEPT FOR MAIN RUNNER AND MOUNTING EXTRUSION, MAKE TWO OF EACH.