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Sold by: Jake Sales
Sold by: Jake Sales
(11118 ratings)
100% positive over last 12 months
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#15 x 4" Construction Lag Screw Exterior Coated Torx/Star Drive Heavy Duty Structural Lag Screw Far Superior to Common Lag Screws - Modified Truss Washer Head - 100 Screw Count

4.7 4.7 out of 5 stars 185 ratings

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#15 x 4" - 100 SCREW COUNT

Purchase options and add-ons

Material Exterior Coated Steel
Drive System Torx, Phillips
Head Style Modified Truss
Item Dimensions LxWxH 4 x 0.62 x 0.62 inches
Exterior Finish Bronze

About this item

  • Dimensions: Height .625" - Head Width .625" - Shaft .265" - Length 4" - Use with T30 Torx Bit
  • Bronzed Coated Exterior - Prevents Rust and Corrosion - ACQ Lumber Compatible
  • Type 17 Notched Extra Sharp Point for Quick Starts without "Walking", Reduces Need for Pre-Drilling
  • Knurled Screw Shoulder Lowers Drill Torque Requirements, High Quality Threads Cut Clean and Easy
  • Great Screw for Decking, Fencing, Roofing, Framing, Timber Frame or Post, and Beam
See more product details

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$52.95 ($0.53/Count)
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#15 x 4" Construction Lag Screw Exterior Coated Torx/Star Drive Heavy Duty Structural Lag Screw Far Superior to Common Lag Screws - Modified Truss Washer Head - 100 Screw Count
Jake Sales #15 x 4" Construction Lag Screw Exterior Coated Torx/Star Drive Heavy Duty Structural Lag Screw Far Superior to Common Lag Screws - Modified Truss Washer Head - 100 Screw Count
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Price$52.95$35.95$40.99$11.99$40.99$40.99
Delivery
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Customer Ratings
Sold By
Jake Sales
Jake Sales
Amazon.com
Amazon.com
Amazon.com
Amazon.com
material
Exterior Coated Steel
Steel
Steel
Steel
Steel
head style
Modified Truss
Modified Truss
Truss
Truss
Truss
Truss
thread type
Cross-cut
Cross-cut
Cross-cut
Cross-cut
thread size
5/16
14 x 2
5/16"
1/4"
5/16"
5/16"
thread style
Right Hand
Right Hand
Right Hand
Right Hand
drive system
Phillips, Torx
Phillips, Torx
Torx
Torx
Torx
Torx
fastener type
Wood Screws
Wood Screws
Screw Mount
Screw Mount
Screw Mount
Screw Mount
fastener size
No. 14
5/16" x
1/4" x
5/16" x
5/16" x
point style
Type 17 Point
Type 17 Point
Type 17 Point
Type 17 Point
Type 17 Point
Type 17 Point
exterior finish
Bronze
Bronze
Epoxy
Epoxy
Epoxy
Epoxy
thread pitch
16 threads per inch
20 threads per inch
16 threads per inch
16 threads per inch

Product Description

Jake Sales
Construction Lag Screw

#15 x 4" Construction Lag Screws (100 Count)

High performance exterior coated Construction Lag Wood Screws are an excellent multipurpose fastener for professional operations & demanding industries. Construction applications include: decking, fencing, roofing, framing, timber frame, post & beam, etc.

Construction Lag Screws far exceed standard lag screws in shear strength, compression forces and ease of installation. Our construction lag screws are strong—can be removed and reused. Exterior coating provides an excellent multipurpose fastener for professional operations and demanding industries.

Construction Lag Screw

Construction Lag Screw

Construction Lag Screw

Construction Lag Screw

Construction Lag Screw

#15 x 4" Construction Lag Screws

Screw engineering specs:

  • Average shear strength of #15 shank—3057 lbs
  • Average pull-out strength—1492 lbs (screw pull-out is calculated with a 3" length screw in the wood species: yellow pine.)
  • Triple Coating: 1200-hour corrosion resistance in both ACQ and salt spray conditions.

#15 x 4" Construction Lag Screws

Many construction fasteners come with a “knurl“, or multiple small protrusions at the top of the threads. This helps ensure that once the end of the threads are reached, the remaining smooth surface of the fastener slides easily, allowing for higher compression forces thanks to its now greatly reduced friction.

#15 x 4" Construction Lag Screws

Use T30 Driver Bit

Modified truss head screw (5/8" head diameter) has better compression that forces deep, wide, sharp screw threads.

High quality, heat treated steel

Torx/Star drive wood screw head, provides twice the torque of Phillips or square drive screw heads.

#15 x 4" Construction Lag Screws

Type 17 screw point for quick starts without "walking."

5/16" construction lag screw thread diameter. High quality scr/ew threads cut cleanly and easily through tough materials. The wide and sharp screw threads provide maximum holding power.

CTX CTX CTX SCTX BTX YTX
14x4" Construction Lag Screws (100 Count) 15x4" Construction Lag Screws (100 Count) 17x7" Construction Lag Screws (100 Count) 15x4" Stainless Steel Construction Lag Screws (100 Count) 9x3" Bronze Star FLAT HEAD Screws (1 Pound) 9x3" Gold Star FLAT HEAD Screws (1 Pound)
Customer Reviews
4.7 out of 5 stars
308
4.7 out of 5 stars
185
4.7 out of 5 stars
61
4.7 out of 5 stars
25
4.7 out of 5 stars
307
Size #14 x 4 Inch #15 x 4 Inches #17 x 7 Inches #15 x 4 Inches #9 x 3 Inches #9 x 3 Inches
Type 17 Screw Point
Exterior Coated Exterior Coated Exterior Coated Exterior Coated Stainless Steel Exterior Coated Yellow Zinc
Usage Decking, Fencing, Roofing, Framing, Timber Frame, Post and Beam and Many More Exterior Applications Decking, Fencing, Roofing, Framing, Timber Frame, Post and Beam and Many More Exterior Applications Decking, Fencing, Roofing, Framing, Timber Frame, Post and Beam and Many More Exterior Applications Chemically Treated Materials, Coastal Areas, Harsh Weather Areas, High Moisture Areas, and Many More Applications Cabinetry, Furniture, Roofing, Framing, and Many More Exterior Applications Cabinetry, Framing, Furniture and many More Wood Applications
Screw Count Approximately 100 Screws Approximately 100 Screws Approximately 100 Screws Approximately 100 Screws Approximately 79 Screws Approximately 78 Screws
Torx/Star Head Size T25 T30 T40 T30 T25 T25
Easy to Install
ACQ and Treated Lumber Compatible
Jake Sales

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#15 x 4" Construction Lag Screw Exterior Coated Torx/Star Drive Heavy Duty Structural Lag Screw Far Superior to Common Lag Screws - Modified Truss Washer Head - 100 Screw Count


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Customer reviews

4.7 out of 5 stars
4.7 out of 5
185 global ratings

Customers say

Customers like the quality, ease of use, and durability of the screws. They mention that they are very well made, heavy duty, and provide the strength they need. Some appreciate the instructions that come with the screws, and mention that the screws easily self tap and secure tightly. Overall, customers are happy with their purchase and recommend them to others.

AI-generated from the text of customer reviews

11 customers mention11 positive0 negative

Customers are satisfied with the quality of the screws. For example, they mention they're well-made, heavy duty, and ideal for creating a deck. Some say that the screws are stout and provide the strength they need. Overall, customers are happy with their purchase and recommend them to others.

"These are strong and stout. Much cheaper than purchasing in store." Read more

"...They met that purpose and provided the strength I needed to feel confident they would hold up over time. They were very easy to install...." Read more

"Great quality, easy to use and so far, superior both in draw-down and shear strength. Used other brands and these are as good or better...." Read more

"...The extra length makes me feel like they are more solidly connected. They went in fine with an impact driver without issue." Read more

4 customers mention4 positive0 negative

Customers find the screws easy to use and install. They say the screws come with instructions on how best to fasten them. Customers also mention that the screws self-tap and secure tightly.

"...They were very easy to install. They came on time in great shape. I would definitely buy again over heavier, harder to install fasteners." Read more

"Great quality, easy to use and so far, superior both in draw-down and shear strength. Used other brands and these are as good or better...." Read more

"We bought two packs. They come with instructions on how best to fasten two boards together so there is no gap...." Read more

"...These screws easily self tap and secure tightly. Impact drill recommend...." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the durability of the screws. They mention that it is a great product at a reasonable price.

"These are strong and stout. Much cheaper than purchasing in store." Read more

"...Used other brands and these are as good or better. Price break good too...." Read more

"Great product at a reasonable (not great) price...." Read more

Drive, Torque, Smile
5 Stars
Drive, Torque, Smile
Great quality, easy to use and so far, superior both in draw-down and shear strength. Used other brands and these are as good or better. Price break good too. Coating blends well with treated lumber and to date, no rusting of the screw. Easy to drive and although no pilot hole needed, we do drill top wood piece to minimize wood spliting after drying. Domed top gives max contact with little area to snag other things such as hands or clothing (used on deck railing too). Product proven and we use various sizes purchased from same vendor. Pic is use ofdifferent szie but same quality as 3". Thanks for helping with our finished projects; all smiles here!
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Top reviews from the United States

Reviewed in the United States on December 13, 2023
Size: #15 x 5" - FULL BOX - 350 Screw CountVerified Purchase
Reviewed in the United States on April 19, 2023
Size: #15 x 4" - 100 SCREW COUNTVerified Purchase
Reviewed in the United States on March 12, 2021
Size: #15 x 3" - 100 SCREW COUNTVerified Purchase
Customer image
5.0 out of 5 stars Drive, Torque, Smile
Reviewed in the United States on March 12, 2021
Great quality, easy to use and so far, superior both in draw-down and shear strength. Used other brands and these are as good or better. Price break good too. Coating blends well with treated lumber and to date, no rusting of the screw. Easy to drive and although no pilot hole needed, we do drill top wood piece to minimize wood spliting after drying. Domed top gives max contact with little area to snag other things such as hands or clothing (used on deck railing too). Product proven and we use various sizes purchased from same vendor. Pic is use ofdifferent szie but same quality as 3". Thanks for helping with our finished projects; all smiles here!
Images in this review
Customer image
Customer image
Reviewed in the United States on August 27, 2023
Size: #15 x 6" - 100 SCREW COUNTVerified Purchase
Reviewed in the United States on January 9, 2022
Size: #15 x 4" - 100 SCREW COUNTVerified Purchase
One person found this helpful
Report
Reviewed in the United States on July 24, 2020
Size: #15 x 4" - 100 SCREW COUNTVerified Purchase
Customer image
RJ
5.0 out of 5 stars These are the ones!
Reviewed in the United States on July 24, 2020
Built a playground for my kids and these screws are awesome. I ordered the #15x4”. Perfect for securing my joists to the deck frame. I included a picture of the width because a few people had that question. Also the screw I’m comparing it to is a #10x3” deck screw for reference. These screws easily self tap and secure tightly. Impact drill recommend. I ordered a second box of 100 to go back and replace the deck screws I had used for the bracing...what a difference! After installing these screws my kids play deck is rock solid! Thanks for making a wonderful American made product. For future projects I’ll definitely buy these again.
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4 people found this helpful
Report
Reviewed in the United States on May 14, 2023
Size: #15 x 5" - 100 Screw CountVerified Purchase
Reviewed in the United States on April 26, 2023
Size: #15 x 4" - 100 SCREW COUNTVerified Purchase