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Built Strong Through Innovation

  • Family of screws designed to attach plywood & dimensional lumber to steel thickness up to .250”.
  • Small wings help bore a clearance hole to help prevent premature thread engagement in the wood. The wings break off after drilling is completed.
  • Wafer head design is used for plywood applications. Flat head design is used for lumber applications.
  • Applications include flooring in steel frame homes & truck body beds.


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SIZE HEAD STYLE CARTON QTY. WEIGHT/M
10-16 x 1-5/8” #2 Square/Phillips Combo 3500 9.2
12-24 x 2” #3 PFH 2000 17.5
12-24 x 2-1/2” #3 PFH 2000 19.5
1/4-20 x 2-3/4” #3 PFH 1500 28.6
1/4-20 x 3-1/4” 6 LOBE 1000 35
HEAD STYLE DRILL POINT MAJOR DIAMETER
10-16 x 1-5/8” - #2 Square/Phillips Combo
12-24 x 2” - #3 PFH
12-24 x 2-1/2” - #3 PFH
1/4-20 x 2-3/4” - #3 PFH
1/4-20 x 3-1/4” - 6 LOBE
10-16 - WINGED SD
12-24 - WINGED SD
1/4-20 - WINGED SD
10-16 - .189/.183
12-24 - .216/.209
1/4-20 - .250/.242
MINOR DIAMETER HEAD DIAMETER POINT DIAMETER
10-16 - .141/.135
12-24 - .165 REF.
1/4-20 - .187 REF.
10-16 - .440 NOM.
12-24 - .389 NOM.
1/4-20 - .507/.452
10-16 - .156/.151
12-24 - .191/.197
1/4-20 - .226/.220
ULT. TENSILE STRENGTH MIN. TORSIONAL STRENGTH NOM. SHEAR STRENGTH
10-16 - 1920 LBS.
12-24 - 2800 LBS.
1/4-20 - 4270 LBS.
10-16 - 61 IN-LBS.
12-24 - 100 IN-LBS.
1/4-20 - 168 IN-LBS.
10-16 - 1633 LBS.
12-24 - 2000 LBS.
1/4-20 - 3000 LBS.
SUBSTRATE GAUGE THICKNESS VALUE
HRS PRIME ONLY 16 .065 10-16 - 847
12-24 - 832
1/-20 - 970
HRS PRIME ONLY 14 .070 10-16 - 916
12-24 - 947
1/-20 - 1165
HRS PRIME ONLY 12 .106 10-16 - 1085
12-24 - 1480
1/-20 - 1838
A36 HRS 3/16" .187 10-16 - 2371*
12-24 - 2582
1/-20 - 3145
A36 HRS 1/4" .250 12-24 - 3494*
1/-20 - 5240*
G-90 GALVANIZED 18 .047 10-16 - 587

*DENOTES TENSILE FAILURE OF FASTENER

DESIGNATION
THICKNESS
CDX PLYWOOD
(NOM 1/2”)
2 x YELLOW PINE
(1.5 ACTUAL)
10-16 (NOTE 3) 680 (NOTE 1) 596
12-24 1302
1/4-20 1383

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