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Hillman 3/8-in x 3-in Hot-Dipped Galvanized Hot-Dipped Galvanized Hex -Head Exterior Lag screws

Name: Hillman 3/8-in x 3-in Hot-Dipped Galvanized Hot-Dipped Galvanized Hex -Head Exterior Lag screws
Brand: Hillman
SKU: 1000381837
Price: 1.66 USD
Availability: InStock
Rating: 4.7 (56 reviews)

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4.7

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Hex lag screws are extremely sturdy wood screws. They can also be used for masonry applications when a lag shield is used. The length of the screw is measured from the under head bearing surface to the extreme tip of the screw.

The hot-dipped galvanized coating is designed for use in highly corrosive environments such as coastal areas or heavily polluted atmospheres
Common applications include retaining walls, deck frames and outdoor play equipment
Pre-drill holes to prevent splitting or snapping; see product package for pre-drilling instructions
Conforms to ASTM A153 specifications

General
Finish	Hot-dipped galvanized	Use Location	Exterior
Manufacturer Color/Finish	Hot-Dipped Galvanized	Number of Pieces	1
Type	Lag screws	Head Type	Hex
Material	Steel	Thread Type	Coarse
Package Quantity	1	Fastener Speed Code	NBF
Grade	2	Point Type	Standard

Dimensions
Length Measurement	3-in	Screw Thickness	3/8-in

Features
Coated	No	Multi-Material	Yes
Drive	Hex	Self-Drilling	No
Fastener Plating	Steel	Self-Tapping	No
Materials Fastened	Universal

Certifications
ACQ Approved	Yes	CA Residents: Prop 65 Warning(s)	Prop 65 WARNING(S) -
ACQ Coated	No

Warranty
Warranty	None

Compatibility
For Use on Plastic	No	For Use on Concrete	No
For Use on Composite	No	For Use on Drywall	No
For Use on Metal	Yes	For Use on Brick	No
For Use on Wood	Yes	For Use on Vinyl	No

Miscellaneous
UNSPSC	31161500

Check out the Best Selling Lag Screws on Lowes.com

Review

4.7 out of 5

56 Reviews

2 Star

100% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise these lag screws for exceptional strength and reliability in demanding applications. Reviewers highlight the robust build quality, secure hold in heavy-duty projects like decks and fencing, and effective galvanized rust resistance for outdoor environments. Many commend the hex head design for smooth driving and the smooth transition between shank and threads. Customers frequently describe them as excellent value for the cost. A few mention price concerns, though these are isolated. Overall, reviewers strongly recommend these screws for their durability and dependable performance.

Customer review summary generated by AI, including incentivized reviews.

56 Customer Reviews

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Galvanizing is top notch

DuckSeptember 11, 2026
Verified Purchaser

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GOOD VALUE

Would Recommend

HammerJune 16, 2026
Verified Purchaser

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High quality and a good price!

Would Recommend

ChuckMay 22, 2026
Verified Purchaser

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		Name	Current Item Hillman3/8-in x 3-in Hot-Dipped Galvanized Hot-Dipped Galvanized Hex -Head Exterior Lag screws
		Ratings	55
		Length Measurement	3-in
		Material	Steel
		Type	Lag screws
Hillman5/16-in x 4-in Hot-Dipped Galvanized Hot-Dipped Galvanized Hex -Head Exterior Lag screws	Hillman3/8-in x 4-in Hot-Dipped Galvanized Hot-Dipped Galvanized Hex -Head Exterior Lag screws	Deck Plus3/8-in x 3-in Black Epoxy Hex -Head Exterior Lag screws	Hillman1/2-in x 6-in Hot-Dipped Galvanized Hot-Dipped Galvanized Hex -Head Exterior Lag screws	Hillman3/8-in x 3-1/2-in Hot-Dipped Galvanized Hot-Dipped Galvanized Hex -Head Exterior Lag screws	Hillman3/8-in x 5-in Hot-Dipped Galvanized Hot-Dipped Galvanized Hex -Head Exterior Lag screws	Hillman3/8-in x 8-in Hot-Dipped Galvanized Hot-Dipped Galvanized Hex -Head Exterior Lag screws	Hillman3/8-in x 6-in Hot-Dipped Galvanized Hot-Dipped Galvanized Hex -Head Exterior Lag screws	Hillman1/2-in x 3-in Hot-Dipped Galvanized Hot-Dipped Galvanized Hex -Head Exterior Lag screws
36	69	40	98	98	47	35	41	12
4-in	4-in	3-in	6-in	3-1/2-in	5-in	8-in	6-in	3-in
Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel
Lag screws	Lag screws	Lag screws	Lag screws	Lag screws	Lag screws	Lag screws	Lag screws	Lag screws