Self-Tapping Screws 1/4" x 1" Hex Washer Head Serrated-25pcs
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- 【Anti-loose Design】Hex flange tooth anti-loose screws eliminate garage door fastener loosening caused by frequent opening-closing vibration. Teeth grip metal tightly to maintain steady elastic pressure and friction against cyclic vibration. Perfect replacement for garage door screws.
- 【Dimension & Package】1/4"x1"(#14) standard screw size, fits most applications, hex flange head works with standard 7/16” hex sockets(not include), install easily via hand drills or impact drivers. Three package opt: 25pcs for Home DIY(this option), 50pcs for single jobs, 100pcs for large projects.
- 【Advantage】Grade 8.8 heat-treated carbon steel with galvanized rust-proof coating; self-drilling screws with widened deep threads(1/4”-20) for secure grip & anti-stripping, perfectly suitable for garage doors and various metal sheet & structures.
- 【Applicable】Quality Life self-tapping screws suitable for mild steel, galvanized steel, aluminum, copper, PVC and wood panels; NOT for stainless steel, hardened steel, concrete, brick or over-thick steel, with 8–12 N·m recommended torque and 4mm max drilling thickness.
- 【More Scenarios】This self-drilling screws Not only for garage door, also ideal for metal roofing, rainwater tank installation, rain gutter, air duct work, metal fence construction, storage shed assembly and electrical equipment mounting etc.
Estimated shipping
Select a product to estimate shipping.These Quality Life self-tapping screws are designed for durable fastening in metal applications. They offer a secure grip and resistance to loosening, making them ideal for projects requiring reliable connections.
Key Highlights
- Reduced Loosening: The hex flange tooth design minimizes loosening due to vibration, especially beneficial for garage doors.
- Robust Construction: Made from Grade 8.8 heat-treated carbon steel with a galvanized finish for superior rust resistance.
- Easy Installation: Designed to be installed easily with hand drills or impact drivers.
- Secure Threading: Partially threaded design and widened deep threads ensure a strong hold on metal sheets and structures.
- Convenient Packaging: Available in sets of 25, 50, or 100 screws to suit various project sizes.
Useful Facts
- Material: 8.8 Grade High Carbon Steel
- Finish: Galvanized
- Head Style: Washer Head
- Thread Size: 1/4 inch
- Size: 1/4" x 1"(#14) self-drilling
- Quantity: 25 Count
Good Fit For
- Garage Door Repairs & Upgrades
- Metal Sheet Projects
- DIY Home Improvement
- General Metal Fastening Applications
Product details






| Main Specification | |
|---|---|
| Ražotājs | Quality Life |
| Vienību skaits | 25 Skaits |
| Ārējā apdare | cinkots |
| Galvas stils | Washer Head |
| Punkta stils | Pašbrauciena punkts |
| Pavedienu aptvērums | Daļēji vītņoti |
| Zīmols | Quality Life |
| Galvas tips | Heks |
| Vienību skaits | 25 |
| Stiprinājuma tips | Self-Drilling Screws |
| Vienības diametrs | 0,25 collas |
| Stiprinājuma izmērs | 1/4" x 1" |
| Pavediena izmērs | 1/4 collas |
| Materiāli | 8.8 Grade High Carbon Steel |
| Pavediena tips | Unc |
| Diska sistēma | Ārējā Hex |
| Product information | |
| Uzstādīt nosaukumu | Self-Tapping Screws 1/4" x 1" (25pcs) |
| Technical Details | |
| Daļas numurs | LS-CKM-25 |
| Paraugs | LS-CKM-25 |
| Materiāla veids | 8.8 Grade High Carbon Steel |
| Style | |
| Apdares tipi | cinkots |
| Others | |
| Vienības izcelšana | Pretrūsas līdzekļi or Self-Drilling Screws for Galvanized Steel or Metal Sheet Screws,8.8 Grade Heat Treated Carbon Steel or Anti-Loose |
| Produkta veids | pašvītņgriezes skrūves |
| Izmērs Nosaukums | 1/4"x1"(#14) self-drilling |
| Skrūves galvas stils | Washer Head |
| Skrūves punkta stils | Pašbrauciena punkts |










