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150Pcs Self Drilling Screws Assortment Kit, 410 Stainless Steel Self Tapping Sheet Metal TEK Screws, #8 1/2" 3/4" #10 1" 1-1/2", Hex Washer Head, Rustproof Fasteners for Metal/Wood/Plastic in Kuwait 150Pcs Self Drilling Screws Assortment Kit, 410 Stainless Steel Self Tapping Sheet Metal TEK Screws, #8 1/2" 3/4" #10 1" 1-1/2", Hex Washer Head, Rustproof Fasteners for Metal/Wood/Plastic in Kuwait 150Pcs Self Drilling Screws Assortment Kit, 410 Stainless Steel Self Tapping Sheet Metal TEK Screws, #8 1/2" 3/4" #10 1" 1-1/2", Hex Washer Head, Rustproof Fasteners for Metal/Wood/Plastic in Kuwait 150Pcs Self Drilling Screws Assortment Kit, 410 Stainless Steel Self Tapping Sheet Metal TEK Screws, #8 1/2" 3/4" #10 1" 1-1/2", Hex Washer Head, Rustproof Fasteners for Metal/Wood/Plastic in Kuwait 150Pcs Self Drilling Screws Assortment Kit, 410 Stainless Steel Self Tapping Sheet Metal TEK Screws, #8 1/2" 3/4" #10 1" 1-1/2", Hex Washer Head, Rustproof Fasteners for Metal/Wood/Plastic in Kuwait 150Pcs Self Drilling Screws Assortment Kit, 410 Stainless Steel Self Tapping Sheet Metal TEK Screws, #8 1/2" 3/4" #10 1" 1-1/2", Hex Washer Head, Rustproof Fasteners for Metal/Wood/Plastic in Kuwait 150Pcs Self Drilling Screws Assortment Kit, 410 Stainless Steel Self Tapping Sheet Metal TEK Screws, #8 1/2" 3/4" #10 1" 1-1/2", Hex Washer Head, Rustproof Fasteners for Metal/Wood/Plastic in Kuwait

150Pcs Self Drilling Screws Assortment Kit, 410 Stainless Steel Self Tapping Sheet Metal TEK Screws, #8 1/2" 3/4" #10 1" 1-1/2", Hex Washer Head, Rustproof Fasteners for Metal/Wood/Plastic

KWD 3.500
Brand
ALLWIN
Category
Fasteners
– 1 +

Special Features

  • ✅ 4-Size Assortment & Complete Kit：Includes 150Pcs self-drilling screws: 60Pcs #8x1/2", 40Pcs #8x3/4", 30Pcs #10x1", 20Pcs #10x1.5". Conforms to DIN 7504(K) standard. #8 screws use 7mm/9/32" driver, #10 screws use 8mm/5/16" driver.
  • ✅ No Pilot Hole Needed - Drill & Fasten in One Step：Self-tapping TEK tip eliminates pre-drilling, saving 50% installation time. Ideal for metal-to-metal or metal-to-wood connections, especially thin sheet metal (up to 18GA).
  • ✅ 410 Stainless Steel - Built to Last：Magnetic stainless steel resists corrosion/rust even in humid environments. Hardened design prevents stripping and deformation under high torque.
  • ✅ Hex Washer Head for Maximum Grip：Wider bearing surface distributes load evenly, while external hex drive prevents bit slippage. Deep-cut threads ensure tight, vibration-resistant connections.
  • ✅ HVAC, Roofing & DIY Ready：Perfect for metal roofing, ductwork, steel framing, automotive repairs, and wood/plastic composite projects. Includes protective storage case for organization.

Description

Professional-Grade Self-Drilling Screw Kit
Engineered for contractors and DIYers needing reliable fastening solutions, this 150-piece assortment combines precision manufacturing with industrial-strength 410 stainless steel.
Technical Advantages
DIN 7504(K) Certified: Precision-machined drill points and threads meet German engineering standards
Multi-Material Compatibility: Secures sheet metal (up to 2mm thick), wood, plastic, and composites
Optimized Drive System: Hex washer head + external hex shank allows 6-point contact for 30% higher torque capacity vs standard Phillips heads
Application Scenarios
✔️ HVAC duct installation & repair
✔️ Metal roofing/siding attachment
✔️ Garage shelving & steel frame assembly
✔️ Automotive body panel fastening
✔️ Wood decking to metal joist connections
Package Contents
Pre-sorted screws in compartments

Reusable plastic case with snap-lock lid

Quality Assurance
Every batch undergoes salt spray testing (48hrs ASTM B117) and hardness verification (Rockwell C38-42).

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