Skip to content
Product Description

Part Number: 31D125HLG2G
Diameter/Pitch: 5/16"-9
Length Under Head: 1-1/4"
Grade: Grade A
Finish: Hot Dip Galvanized
Partial / Full Threads: Full
Wrench Size: 1/2"
Recommended Predrill Hole Size: Softwood: 15/64" | Hardwood: 1/4"




BoltsandNuts.com

5/16-9x1-1/4" Hex Lag Screws A307 Grade A Galvanized

SKU: 31D125HLG2G
Product Description

Part Number: 31D125HLG2G
Diameter/Pitch: 5/16"-9
Length Under Head: 1-1/4"
Grade: Grade A
Finish: Hot Dip Galvanized
Partial / Full Threads: Full
Wrench Size: 1/2"
Recommended Predrill Hole Size: Softwood: 15/64" | Hardwood: 1/4"




Promo

B&N Pro eligible item. Save 10% when you join Pro. Learn more.

1
$0.51/pc
Popular
50
$0.38/pc
100
$0.32/pc
250
$0.25/pc
Best Value
1175
$0.19/pc
$0.51
B&N Pro $0.00 Member Price
(Shipping $8.95) Add [amount] more for FREE SHIPPING
Father's Day Bundle Sale

Celebrate Father's Day with three specially curated bundles

SALE ENDS: 6/16/26

Length Under Head: 1-1/4"
Finish: Hot Dip Galvanized
Partial Full Threads: Full
Wrench Size: 1/2"
Grade Material: Grade A
Diameter: 5/16"
Point Type: Gimlet Point
Recommended Predrill Hole Size: Softwood: 15/64" | Hardwood: 1/4"

Free Shipping Over $25

Orders ship from Perry, Ohio. Standard ground shipping is free on orders $25+ within the contiguous United States.

Expedited & Overnight Shipping

Available at checkout. Orders placed before 2 PM ET ship same day from in-stock inventory.

30-Day Returns

Return any unopened item within 30 days for a full refund. Free return labels available for qualifying customers.