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The Simpson Strong-Tie X12 Series self-drilling screws are designed to connect light gauge steel (LGS) and hot rolled steel with speed, accuracy, and strength. Featuring a 5/16" hex washer head and a self-drilling point, these screws eliminate the need for pilot holes, significantly reducing installation time while ensuring reliable performance.
Self-Drilling Performance: Built-in drill point allows direct penetration of steel without pre-drilling
Hex Washer Head (5/16”): Ensures secure grip and clean installation with standard tools
High-Performance Coating: Ruspert 500 for corrosion resistance in demanding environments
CE Marked: Compliant with EN14566 for fastening in construction applications
Two Variants for Versatile Steel Applications:
X1214: 14 TPI, #3 drill point – drills through steel up to 5mm thick
X1224: 24 TPI, #5 drill point – drills through steel up to 12.5mm thick
Manufactured from steel with a Ruspert 500 coating, offering superior rust and corrosion protection
X1214 Screws:
Ideal for LGS to LGS connections
Suitable for general light steel framing and structural assemblies
X1224 Screws:
Designed for LGS to hot rolled steel installations
Suitable for heavier structural fixings where thicker steel is involved
No Pilot Hole Required: Increases efficiency and consistency on-site
Durable Coating: Enhanced resistance to wear, rust, and corrosion
Precision Threading: Maintains grip and holding power in steel
Certified Reliability: Complies with EU standards for construction fixings
Driver bit not included – ensure compatibility with 5/16" hex drive tools
Always verify steel thickness before selecting the appropriate screw variant
Follow correct torque settings to prevent stripping or overdriving
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