DURO-LAST® HD SCREWS
DATA SHEET
Description:
Duro-Last®, Inc. requires the use of Duro-Coated Screws for mechanical fastening of the Duro-Last roofing system. Duro-Last HD Screws are #14 diameter, are equipped with a P-3 truss head and are available with either a drill point or a spade point.
Duro-Last HD Screws can be used in most types of roofing applications. These Duro-Coated Screws must pass twice the FM 4470 standard for corrosion resistance, totaling 30 cycles in a Kesternich cabinet. Duro-Last, Inc. also requires that all Duro-Coated Screws pass 20º and 40º bend tests (hardness) and be able to penetrate a 20 gauge deck in under three seconds with a 50 lb. (222 N) load.
Installation:
1.Penetration into all approved deck types is 1 inch (25 mm) minimum, from the top surface of the deck.
Note:
Duro-Last, Inc. stocks HD screws in the sizes noted in the table to the right. Additional sizes are available on a drop ship basis. Please allow adequate time for ordering and delivery of special orders.
HD SCREW DIMENSIONS
Length |
Thread Length |
Quantity per |
|
Bucket |
|||
|
|
||
1.5 in. (38 mm) |
1.5 in. (38 mm) |
1000 |
|
|
|
|
|
2 in. (51 mm) |
2 in. (51 mm) |
1000 |
|
|
|
|
|
2.5 in. (64 mm) |
2. 5 in. (64 mm) |
1000 |
|
|
|
|
|
3 in. (76 mm) |
3 in. (76 mm) |
1000 |
|
|
|
|
|
3.5 in. (89 mm) |
3 in. (76 mm) |
1000 |
|
|
|
|
|
4 in. (102 mm) |
3 in. (76 mm) |
1000 |
|
|
|
|
|
4.5 in. (115 mm) |
3 in. (76 mm) |
1000 |
|
|
|
|
|
5 in. (127 mm) |
4 in. (102 mm) |
1000 |
|
|
|
|
|
5.5 in. (140 mm) |
4 in. (102 mm) |
1000 |
|
|
|
|
|
6 in. (152 mm) |
4 in. (102 mm) |
1000 |
|
|
|
|
|
7 in. (178 mm) |
4 in. (102 mm) |
500 |
|
|
|
|
|
8 in. (203 mm) |
4 in. (102 mm) |
500 |
|
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|
|
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9 in. (229 mm) |
4 in. (102 mm) |
500 |
|
|
|
|
|
10 in. (254 mm) |
4 in. (102 mm) |
500 |
|
|
|
|
|
11 in. (279 mm) |
4 in. (102 mm) |
500 |
|
|
|
|
|
12 in. (305 mm) |
4 in. (102 mm) |
500 |
|
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Duro-Last: The Proven Performer®
www.duro-last.com |
18 |
800-248-0280 |
"Duro-Last" and "The World's Best Roof" are registered marks owned by Duro-Last , Inc. |
Revised: 4/6/2011 |
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