Big Timber CTX Construction Lag Screws

As low as $168.99
Availability: In stock
Only %1 left
As low as $168.99
Expected Shipping: 1-3 Days About Expected Shipping Times
Have a question? Ask a Deck Building Expert
Product Satisfaction Guaranteed!

This product is guaranteed! No restocking fees.

Free Ground Shipping Available

On any combination of select items over $399

Excluding Alaska and Hawaii. Conditions Apply

  • Minimum Order Tier: $399
  • Note: Free shipping only applies to combined product totals of the same Minimum Order Tier. Learn More
Ground Shipping Only

This product requires ground shipping.

CTX Construction Lag Screws

Big Timber CTX Construction Lag Screws are heat treated and hardened, these screws are stronger & more durable than ordinary lag screws. Big Timber Lag Screws have deep cutting threads for quick, easy driving and a sharp notched point for exact, quick starting with less “walking”. A built-on round washer head with smooth edges gives a professional finish. The Ceramic Coating provides 1200-hour corrosion resistance in both ACQ and salt spray conditions. These screws will come out as easy as they go in. Depending on size, CTX screws are available in #14, #15, or #17 sizes by 50ct, 100pc jars, & Bulk Boxes, depending on selection.

Detailed Information

Big Timber CTX Construction Lag Screws feature:

  • 1200-hour corrosion resistance in both ACQ and salt spray conditions
  • Outstanding abrasion resistance
  • Provide maximum holding power
  • Cut cleanly & easily

Sizes Available:

  • #14 x 1", 1-1/2" - Uses T25 Bit
  • #17 x 5", 6", 7", 8" 10" 12", 14", 16" - Uses T40 Bit



  • Thread Diameter: .25
  • Head Diameter: .54
  • Shank Diameter: .167


  • Thread Diameter: .310
  • Head Diameter:11/16"
  • Shank Diameter: .226

View Big Timber's Testing Reports

Big Timber ICC-ES Report Big Timber ESR-3534 Report

Big Timber Mechanical Test Report Big Timber AC233 Mechanical Testing Of Fasteners Report

Get Adobe Reader

More Information
Package Quantity Big Timber Lag Screws are available in 50pc, 100pc, & bulk sizes depending on variety
Manufacturer Big Timber
Manufacturer Link
Dimensions #14 or #17 in lengths from 1" - 16" depending on variety
CA Proposition 65

Customer Reviews for Big Timber CTX Construction Lag Screws