Installation Notes - USP Connectors
Installation Notes - USP Connectors
Installation Notes - USP Connectors
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Wood Screws – WS series<br />
Fasteners<br />
The WS Wood Screw is a self-drilling screw used for numerous framing<br />
applications. This screw features a reverse locking serration on the bottom of<br />
the screw head to help prevent over tightening against a steel plate. The <strong>USP</strong><br />
head stamp identifies screws for easy inspection.<br />
Screw shear capacities are based on a diameter of 0.242˝ when the shear plane<br />
is on the screw shank (SH) and 0.185˝ when the shear plane is on the knurl or<br />
threads (T). <strong>USP</strong> WS Wood Screws have a bending yield strength of 180,000<br />
psi.<br />
Materials:<br />
Finish:<br />
1/4˝ diameter Grade 5 steel<br />
See chart<br />
<strong>Installation</strong>:<br />
• Screws are self-drilling.<br />
• Install using a low speed clutch drill with 3/8˝ hex head driver. The washer<br />
head should be flat to the surface and the serrations will oppose turning and<br />
release the clutch. Do not over-tighten the screws.<br />
• Installing the screw at an angle may introduce additional bending and tension<br />
forces into the fastener if the screw head is not flat on the bearing surface. Care<br />
should be given to ensure the fastener is installed perpendicular to the plane of<br />
the side plate.<br />
L<br />
SH<br />
T<br />
WS<br />
Serrations<br />
1/4˝ Beveled reamer<br />
on 2 1 /2˝ or longer<br />
Wood Screws<br />
Cut threads<br />
Self drilling point<br />
© Copyright 2013 <strong>USP</strong> Structural <strong>Connectors</strong>®<br />
<strong>USP</strong> name<br />
Screw length<br />
For Attaching Multi-Ply Wood Trusses or<br />
LVL or PSL members, or floor trusses,<br />
see pages 17-19.<br />
3/8˝<br />
<strong>USP</strong><br />
Stock No.<br />
WS15<br />
WS15-GC<br />
WS2<br />
WS25<br />
WS3<br />
WS35<br />
WS45<br />
WS6<br />
Description<br />
Dimensions (in)<br />
Wood<br />
to Wood<br />
Factored Shear Resistance<br />
14 10 7 3<br />
10 7 3<br />
(DF-L<br />
Gauge Gauge Gauge Gauge<br />
(S-P-F<br />
Gauge Gauge Gauge Gauge<br />
Ref. No. in mm L SH T Finish 1 Unit to DF-L) 100% 100% 100% 100% to S-P-F) 100% 100% 100% 100%<br />
SDS25112<br />
-- --<br />
SDS25200<br />
SDS25212<br />
SDS25300<br />
SDS25312<br />
SDS25412<br />
SDS25600<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
6.1 x 38<br />
6.1 x 38<br />
6.1 x 50.8<br />
6.1 x 63.5<br />
6.1 x 76.2<br />
6.1 x 88.9<br />
6.1 x 114.3<br />
6.1 x 152.4<br />
1-1/2<br />
1-1/2<br />
2<br />
2-1/2<br />
3<br />
3-1/2<br />
4-1/2<br />
6<br />
1/4<br />
1/4<br />
1/4<br />
1/4<br />
3/4<br />
3/4<br />
1-1/4<br />
1-3/4<br />
1-1/4<br />
1-1/4<br />
1-3/4<br />
2<br />
2<br />
2-1/2<br />
3<br />
4<br />
Zinc<br />
GC<br />
Zinc<br />
Zinc<br />
Zinc<br />
Zinc<br />
Zinc<br />
Zinc<br />
Lbs<br />
Lbs<br />
Lbs<br />
Lbs<br />
Lbs<br />
Lbs<br />
Lbs<br />
Lbs<br />
-- --<br />
-- --<br />
-- --<br />
323<br />
387<br />
452<br />
543<br />
543<br />
358<br />
358<br />
423<br />
487<br />
552<br />
616<br />
680<br />
680<br />
496<br />
496<br />
561<br />
625<br />
690<br />
754<br />
825<br />
825<br />
660<br />
660<br />
724<br />
789<br />
853<br />
918<br />
997<br />
997<br />
807<br />
807<br />
1031<br />
1031<br />
1031<br />
1031<br />
1031<br />
1031<br />
-- --<br />
-- --<br />
-- --<br />
277<br />
332<br />
387<br />
480<br />
480<br />
332<br />
332<br />
387<br />
443<br />
498<br />
553<br />
618<br />
618<br />
471<br />
471<br />
526<br />
582<br />
637<br />
692<br />
763<br />
763<br />
635<br />
635<br />
691<br />
746<br />
801<br />
857<br />
890<br />
890<br />
692<br />
692<br />
900<br />
900<br />
900<br />
900<br />
900<br />
900<br />
kN<br />
kN<br />
kN<br />
kN<br />
kN<br />
kN<br />
kN<br />
kN<br />
-- --<br />
-- --<br />
-- --<br />
1.44<br />
1.72<br />
2.01<br />
2.42<br />
2.42<br />
1.59<br />
1.59<br />
1.88<br />
2.17<br />
2.46<br />
2.74<br />
3.02<br />
3.02<br />
2.21<br />
2.21<br />
2.49<br />
2.78<br />
3.07<br />
3.36<br />
3.67<br />
3.67<br />
2.93<br />
2.93<br />
3.22<br />
3.51<br />
3.80<br />
4.08<br />
4.44<br />
4.44<br />
3.59<br />
3.59<br />
4.58<br />
4.58<br />
4.58<br />
4.58<br />
4.58<br />
4.58<br />
-- --<br />
-- --<br />
-- --<br />
1.23<br />
1.48<br />
1.72<br />
2.14<br />
2.14<br />
1.48<br />
1.48<br />
1.72<br />
1.97<br />
2.21<br />
2.46<br />
2.75<br />
2.75<br />
2.09<br />
2.09<br />
2.34<br />
2.59<br />
2.83<br />
3.08<br />
3.40<br />
3.40<br />
2.83<br />
2.83<br />
3.07<br />
3.32<br />
3.56<br />
3.81<br />
3.96<br />
3.96<br />
3.08<br />
3.08<br />
4.00<br />
4.00<br />
4.00<br />
4.00<br />
4.00<br />
4.00<br />
DF-L 2,3,4,5<br />
Steel to Wood<br />
1) Zinc = Yellow zinc dichromate; GC = Gold Coat.<br />
2) Factored Resistance values determined in accordance with CSA O86-09 Section 10.11.<br />
3) Steel side plate factored resistance based on a minimum Fu = 45,000 psi.<br />
<br />
5) Loads are for 100% duration of load factors, and may be increased for other duration factors allowed per governing building code.<br />
6) Loads are for shear applications when used as described in this catalog. Please contact <strong>USP</strong> for applications and installations involving tension forces.<br />
New products or updated product information are designated in red font.<br />
Wood<br />
to Wood 14<br />
S-P-F 2,3,4,5<br />
Steel to Wood<br />
16<br />
1-800-328-5934 • www.<strong>USP</strong>connectors.com
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