Acorn S-WM14234G250 Winged Self-drilling Screw 250 Ct

Product Description

The ACORN S-WM14234G250 is a winged self-drilling screw engineered for fastening wood directly to steel or aluminum without predrilling. Made from C1022 steel and case hardened, this screw measures 2.75 inches in length and ships in a 250-count pack. The reamer wings bore through the wood layer and snap off cleanly when they contact metal, allowing the No. 3 drill point to penetrate up to 0.25 inches of metal. A shank slot captures steel shavings and improves drilling action throughout the fastening cycle. The dacro coating passes a 1,000-hour salt spray test, providing corrosion resistance in demanding environments. This fastener is installed by construction crews, trailer fabricators, and metal building contractors.

The S-WM14234G250 is sized at 14-20 thread with a 14 head designation and features a star drive flat head configuration. Star drive geometry reduces cam-out and end load, handles greater torque than Phillips or square drive, and eliminates spinning and fastener damage. A T30 bit is required for installation and is not included. This screw is well suited for trailer beds, trailer walls, and structural panel applications where wood substructure meets a steel or aluminum frame. The 250-count pack supports production-volume work without frequent resupply.

Key Features

• C1022 steel construction, case hardened for durability in wood-to-metal applications
• Reamer wings clear wood material and snap off automatically on metal contact
• No. 3 drill point penetrates up to 0.25 inches of steel or aluminum with no predrilling
• Star drive flat head reduces cam-out, handles higher torque, and resists spinner damage
• Shank slot retains steel shavings and maintains clean drilling action
• Dacro coating rated to 1,000-hour salt spray resistance
• Packed 250 pieces per pack for production-volume use

Compatibility

Designed for fastening wood to steel or aluminum framing in trailer bed and wall construction, and similar structural panel assemblies where a winged self-drilling screw is specified. Requires a T30 star drive bit, not included.

Installation Notes

Installation is performed with a T30 star drive bit at appropriate drill/driver speed to allow the reamer wings to bore through the wood layer cleanly. Do not force the fastener once the wings snap off against the metal substrate; let the drill point engage at controlled speed to avoid stripping. No predrilling is required for metal up to 0.25 inches thick. Follow applicable building and trailer manufacturing codes for fastener spacing and edge distance.

Technical Specifications

• Length: 2.75 inches
• Thread Size: 14-20
• Head Size Designation: 14 Head
• Drive Type: Star Drive (T30)
• Head Style: Flat Head
• Material: C1022 Steel, Case Hardened
• Coating: Dacro, 1,000-Hour Salt Spray Rated
• Max Metal Penetration: 0.25 inches (no predrilling)
• Pack Quantity: 250 pieces
• Weight: 7 pounds
• UPC: 00810468000357

Standard Information

• Brand: ACORN
• Manufacturer Part Number: S-WM14234G250