ENGLISH - 13
Installation (continued)
[Reference]
Wood screw pullout strength Unit (N)
Tree type
(Thickness of at least
20 mm (25/32ʺ))
Wood screw (nominal diameter 4.1 mm (5/32")
x thread engagement 20 mm (25/32"))
Wood screw (nominal diameter 3.1 mm (1/8")
x thread engagement 20 mm (25/32"))
Cross grain
Straight grain
Edge
Cross grain Straight grain
Edge
Pine
1317
1114
912
796
674
551
Cedar
1013
1013
709
613
613
429
Cypress
1621
2127
912
980
1286
551
Lauan
912
-
551
-
Plywood
1114
810
674
490
Laminated veneer
lumber
810
399
490
241