User Manual

80º/82º - Flat Head - Type III (square socket) - Wood Screw
THREAD DATA
Size: #8 Threads per in.: 15 Series Designation: Single-Lead
Thread Class or Type: WSSL Major Diameter: 0.168 - 0.157 Minor Dia Max/Min.: 0.111 Max.
Standard: ASME B18.6.1-2008
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DIMENSIONAL DATA
Type: 80º/82º - Flat Head - Type III (square socket)
- Wood Screw
Standard: ASME B18.6.1 - 2008 Nominal Diameter: 0.164
E - Body Diameter : 0.136 - 0.125 A - Head Diameter: 0.332 - 0.292 H - Head Height: 0.100 Ref.
Point Type: Gimlet (sharp) Driver Size: 2S Penetration Depth: 0.063 - 0.048
Wobble: 3º M – Ref. Recess Dim.: 0.204 L - Length: 3/4
Length Tolerance: -0.05
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PHYSICAL REQUIREMENTS
Nominal: 0.164 Standard: ASME B18.6.1, carbon steel Typical Materials: carbon steel, 1010
Straightness Factor: N/A
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FINISH DATA
Finish: Zinc & Clear, non-hexavalent/Cr(VI) free -
.0001"/ 3µm
K factor (ref. DIN 946): 0.22 Standard: ASTM F1941/F1941M-2016, Fe/Zn 3AN
1
These torque values are based on K factors determined using DIN 946, tightening tension of 75% of the yield strength, and the calculation formula T=KDP. These values are advisory
only. The torque for assembling critical joints should be determined and/or verified through actual experimentation by the user. The IFI is not responsible for any losses or claims
resulting from the use of these values.
2
Calculated Pretension is equal to 75% of the bolt’s yield strength achieved when using the indicated Tightening Torque.
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