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Product Description

Part Number: 31D150HLG2Z
Diameter/Pitch: 5/16"-9
Length Under Head: 1-1/2"
Grade: Grade A
Finish: Zinc Clear
Partial / Full Threads: Full
Wrench Size: 1/2"
Recommended Predrill Hole Size: Softwood: 15/64" | Hardwood: 1/4"




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5/16-9x1-1/2" Hex Lag Screws A307 Grade A Zinc

SKU: 31D150HLG2Z
Product Description

Part Number: 31D150HLG2Z
Diameter/Pitch: 5/16"-9
Length Under Head: 1-1/2"
Grade: Grade A
Finish: Zinc Clear
Partial / Full Threads: Full
Wrench Size: 1/2"
Recommended Predrill Hole Size: Softwood: 15/64" | Hardwood: 1/4"




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Diameter Pitch5/16-9
Grade MaterialGrade A
Partial Full ThreadsFull
Tensile Strength60,000 psi
Inch MetricInch
Length Under Head1-1/2"
FinishZinc Clear
Width Across Flats0.500" (1/2")
Point TypeGimlet Point
Recommended Predrill Hole SizeSoftwood ≈ 5/32" · Hardwood ≈ 15/64" (root dia 0.227")
GradeA307 Grade A
MaterialLow carbon steel (ASTM A307 Grade A)
Major Diameter0.312"
Thread Length0.98" approx (≈60–70% of length)

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