#14 x 3-1/2" (25 Pack) Hex Washer Head Self Drilling Screws (3/4" to 7" Available), 410 Stainless Steel Self Tapping Sheet Metal Screws, No Pre-drilled Needs

Package Included: 25 PCS Hex Washer Head Self Drilling Screws #14 x 3-1/2" About Hex Washer Head Self Drilling Screws Self Drilling Screws, also know as tek screws to provide secure fastening with strong holding power without the need to pre-drill. Beneath the head is a thin circular steel washer and when these washers are assembled to self-piercing or self-drilling screws, those become sealing screws to protect against leakage and offer bearing qualities superior to that of regular washers. No exterior finish and no coating, the screws are made of the finest 100% 410 stainless steel . Application Automobile, machinery, electronics, assembling, construction, manufacturing industry, indoor and outdoor. RoyceMart specialized in providing full ranges of standard fasteners including fully customized packaging solutions to fulfill our customer's expectation. All products undergoes three level of quality testing and quantity checking before reaching our customers

• Screw Diameter: #14 (6.3mm); Screw Length: 3.5" (90mm); Drive Size: 3/8" Hex (10mm)
• Quantity: 25 Pieces; Head Type: Hex Washer Head (HWH) - Flange Diameter: 0.52"
• Premium 410 Stainless Steel Construction: Engineered for exceptional strength and superior corrosion resistance, ensuring long-lasting durability in demanding applications. Note: Slightly magnetic; ideal for steel-on-steel or steel-on-sheet metal fastening, but not compatible with aluminum
• Hex Head with Integrated Flange: Provides dual security: the hex head offers positive wrench engagement for a secure, high-torque drive, while the built-in flange distributes clamping force effectively, preventing crushing or distortion of thin sheet metal
• Self-Drilling Tip for Steel & Sheet Metal: Eliminates the need for pre-drilling! These self-tapping screws drive directly into steel or sheet metal steel, dramatically speeding up installation and saving significant labor time when attaching metal to metal or sheet metal.