Drywall and Particle Board - Deck Screws
Specifications and Dimensions

Bugle Head Course Thread Drywall & Particle Board Screws   Phillips & Square Drive Trim Head Drywall Screws Screws   Bugle Head Fine Thread Drywall Screws  
Bugle Head High-Low
Drywall Screws  		 Bugle Head Course Thread
Deck Screws  		  



Threads for Bugle Head Coarse Thread Drywall and Particle Board Screws

Screw Size Threads Per Inch D
Major Diameter
Max Min
6 8 .145 .142
7 8 .172 .159
8 8 .180 .163
10 8 .210 .180

Tolerance on Length Up to 1" Incl.: -0, +.060 Over 1": -0, + .100

Coarse Thread Drywall and Particle Board Screw Information

Descriptiom Course thread Drywall - Sharp point: A bugle head screw with spaced threads, extra sharp point and black phosphate finish. Partical Board Screw; Same as course thread drywall screw but available in shorter lengths than standard drywall screws.
Applications
and
Advantages		 Course thread Drywall: - Sharp point: For attaching drywall to wood studs or up to 25 gage metal studs. Partical Board Screw: Designed specifically for use in dense woods, especially man-made types such as chipboard and particle board.
Material AISI 1018 or equivalent steel
Heat treatment Screws shall be quenched in liquid and then tempered by reheating to 650°F minimum.
Case Hardness Rockwell C44 minimum
Plating See plating information page.




Threads for Bugle Head Fine Thread Drywall Screws

  Fine Thread
Drill Point
Drywall Screw		   Fine Thread
Sharp Point
Drywall Screw		  
Screw Size Threads Per Inch D d
Major Diameter Minor Diameter
Max Min Max Min
6 18 .144 .135 .102 .096
7 16 .156 .147 .113 .106
8 15 .170 .161 .123 .116
10 14 .201 .193 .158 .152

Tolerance on Length Up to 1" Incl.: -0, +.060 Over 1": -0, +.100

Fine Thread Drywall Screw Information

Description Fine thread Drywall--Sharp point:  A bugle head screw with twinfast thread, extra sharp point and black phosphate finish.
Fine thread Drywall --Drill point:  A bugle head screw with twin lead spaced thread, self drilling point and black phosphate finish.
Applications
and
Advantages		 Fine thread Drywall--Sharp point:  For attaching drywall to metal studs from 25 gage through 20 gage thick. Longer sizes are ideal for multiple layers or insulation.
Fine thread Drywall --Drill point:  Will drive easily through drywall, drill a hole in a steel stud up to 14 gage thick, and form its own mating thread. Can also be used for attaching plywood or insulation board to 14 gage metal.
Material AISI 1018 or equivalent steel
Heat treatment Screws shall be quenched in liquid and then tempered by reheating to 650°F minimum.
Case Hardness Rockwell C44 minimum
Plating See plating information page.




Threads for Bugle Head High-Low Thread Drywall Screws

High-Low Pattern
Drywall Screw Thread
Screw Size Threads Per Inch D d
High Thread Diameter Low Thread Diameter
Max Min Max Min
6 18 .154 .141 .124 .118
7 16 .166 .153 .130 .122
8 15 .181 .165 .138 .131

Tolerance on Length Up to 1 inch, included: +.060 -0 Ocer 1 inch: +.100 -0

High-Low Thread Drywall Screw Information

Descriptiom A bugle head screw with a double-lead, considting of a high and low thread with an extra sharp point and black phosphate finish. The lower thread varies in height from 1/3 to 1/2 that of the higher thread, which is sharper and flatter than a standard thread.
Applications
and
Advantages		 Requires less torque to drive than a standard twinfast drywall screw. The high-low thread is more resistant to vibration and reduces the chance of heads popping.
Material AISI 1018 or equivalent steel
Heat Treatment Screws shall be quenched in liquid and then tempered by reheating to 650°F minimum.
Surface Hardness Vickers HV 550-800 (Rockwell C 52.3 - 64)
Core Hardness Vickers HV 270-450 (Rockwell C 25.6 - 45.3)
Plating See plating information page.




Trim Head Drywall Screws

  Phillips Drive Trim Head   Square Drive Trim Head  
Nominal Size
& Threads
Per Inch		 A R T S M C D H
Head
Diameter		 Phillips
Recess
Diameter		 Phillips
Recess
Depth		 Recess
Square		 Square
Recess
Depth		 Head
Thickness		 Thread
Diameter		 Head
Height
Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min
6-18 .236 .216 .154 .141 .075 .051 .106 .091 .071 .055 .031 .023 .142 .133 .150 .133
8-15 .276 .256 .185 .169 .104 .080 .113 .110 .075 .065 .031 .023 .169 .161 .150 .133

Tolerance on Length +/- 0.06

Trim Head Drywall Screw Information

Description A screw with twinfast thread, extra sharp point and countersunk flat head of a width 1/3 less than a standard bugle drywall screw.
Applications
and
Advantages		 For attaching wood trim to wood framing of up to 20 gage thick. The square drive variety is preferred when greater torque is required during installation.
Material AISI 1018 or equivalent steel
Heat Treatment Screws shall be quenched in liquid and then tempered by reheating to 650°F minimum.
Case Depth .004 inch minimum
Surface Hardness Vickers HV 550-800 (Rockwell C 52.3 - 64)
Core Hardness Vickers HV 270-450 (Rockwell C 25.6 - 45.3)
Plating Black phosphate finish




Square Drive Course Thread Bugle Head Deck Screws

Screw
Size		 Threads
Per Inch		 D S G Drive
Size
Major Diameter Recess Square Penetration Gaging Depth
Max. Min. Max. Min. Max. Min.
6 10 .154 .142 .091 .089 .065 .056 1
8 8 .180 .163 .113 .110 .075 .064 2
10 8 .210 .180 .113 .110 .075 .064 2


Phillips Drive Course Thread Bugle Head Deck Screws

Screw
Size		 Threads
Per Inch		 D R I Drive
Size
Major Diameter Recess Diameter Recess Depth
Max. Min. Max. Min. Max. Min.
6 10 .154 .142 .201 .176 .116 .093 2
8 8 .180 .163 .201 .176 .116 .093 2
10 8 .210 .180 .204 .190 .125 .098 2




Course Thread Deck Screw Information

Description A bugle head screw with spaced threads, extra sharp point and dacritized finish. An optional, Auger Point, design allows for a cutting edge and chip cavity to extend from the point, up the shank for a portion of the threaded length. A bugle head screw with spaced threads, extra sharp point, manufactured of corrosion-resistant stainless steel. An optional, Auger Point, design allows for a cutting edge and chip cavity to extend from the point, up the shank for a portion of the threaded length.
Applications
and
Advantages		 Designed specifically for joining pieces of pressure treated lumber. Provides corrosion resistance superior to phosphate-coated drywall screws without discoloring the wood. The square drive is often preferred for its excellent torque transmission and resistance to cam-out problems. Screws with a cutting edge and chip cavity tend to penetrate hard woods easier than those without. Designed specifically for joining pieces of pressure treated lumber. Remains resistant to corrosion for approximately twice as long as do dacrotized steel deck screws. Screws with a cutting edge and chip cavity tend to penetrate hard woods easier than those without.
Material AISI 1018 or equivalent steel 18-8 passivated stainless steel
Hardness HV 550 - 800 Rockwell B 85 - 95
Plating Dacrotized Finish Stainless deck screws required no additional coating



Smith Fastener Company • 3613 East Florence Avenue, Bell, California, 90201
Phone: ( 323 ) 587-0382 • FAX: ( 323 ) 587-8712 • E-mail: sales@smithfast.com
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