Screw spline fabrication, Step 3) step 4), Step 1) step 2) – EFCO 403 Series Storefront User Manual

Page 31

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EFCO CORPORATION 1/2013 PART NO. Y001

Page 31 of 94

Series 401,402, & 403 Installation Instructions






























































If the opening has an entrance, see the appropriate frame and

Cut horizontal glass stops to day lite openings minus 1/32".

See pages 9, 17, and 27 of the parts identification section.

NOTE: Door jambs run to the floor and are cut longer than other

(D.L.O. - 1/32")

STEP 3)

STEP 4)

Drill holes for assembly screws on vertical members.

(See Fig. # 5 page 35).

NOTE: Drill jigs are available.

Cut horizontal members to day lite openings.
(Between vertical mullions)

verticals.

door fabrication installation sheets.

When an entrance is required, screw spline joinery may be used with

ASSEMBLY SCREWS TO PREVENT GALLING AND BREAKAGE.

INSTALLATION, IT WILL BE NECESSARY TO 'WAX' THE FRAME

DUE TO THE SCREW TENSIONS REQUIRED FOR CORRECT

the screw spline door jambs only. Otherwise, shear block joinery

Measure the opening to determine the cut length of the

NOTE: Allow minimum 1/2" shim and caulk space around perimeter.

NOTE: Allow extra clearances, if necessary, to accommodate building

NOTE)

must be used to attach the side lite horizontals.

STEP 1)

STEP 2)

frame components.

Cut the verticals to frame size.

NOTE: Verticals must run through.

tolerances and building movement.

NOTE: Consult A.D.A. requirements to verify compliance.

SECTION III: A. SCREW SPLINE FABRICATION

The screw spline system is a fabrication and erection method that
permits the preassembly of single units in the shop or at the job site.
These units are then erected by mating the male mullion with the
female mullion counterpart.

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