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2" Coarse Thread Drywall Screws - 3,500 pieces
$120.00
In stock: 6 available
Product Details
UPC: 099385002006
Brand: STARBORN
WOOD & METAL SCREWS — CHEAT SHEET
WOOD SCREWS
Purpose: Fasten wood to wood.
Key Features
- Coarse threads → grip soft/hard wood
- Smooth shank (upper part) → pulls boards tight
- Sharp point → easy start
- Tapered body → prevents splitting
- Usually longer than metal screws
Best For
- Framing
- Plywood
- Furniture
- Decking (use coated or stainless)
Bangla
Wood screw = কাঠে ব্যবহারের স্ক্রু। মোটা থ্রেড, ধারালো মাথা, কাঠ শক্তভাবে ধরে।
METAL SCREWS (Sheet‑Metal Screws)
Purpose: Fasten metal to metal, metal to wood, or plastic.
Key Features
- Full threads from top to bottom
- Finer threads → grip metal
- Stronger core → resists snapping
- Sharp point (self‑tapping) or drill‑tip (self‑drilling)
- No smooth shank
Best For
- HVAC
- Electrical boxes
- Metal studs
- Brackets
- Thin sheet metal
Bangla
Metal screw = মেটাল বা পাতলা শীটে ব্যবহারের স্ক্রু। পুরোটা থ্রেড, শক্ত, ফাইন থ্রেড।
WOOD vs METAL SCREWS — QUICK DIFFERENCE TABLE
|
Feature |
Wood Screw |
Metal Screw |
|
Thread |
Coarse |
Fine |
|
Shank |
Smooth upper shank |
Full thread |
|
Point |
Sharp |
Sharp or drill‑tip |
|
Material |
Wood |
Metal, plastic, wood |
|
Strength |
Medium |
High |
|
Grip |
Bites into wood |
Cuts threads in metal |
|
Length |
Usually longer |
Usually shorter |
STAFF QUICK QUESTIONS
- What material? (Wood or metal)
- Do you need coarse or fine thread?
- Do you need self‑tapping or self‑drilling?
- Indoor or outdoor? (Coating matters)
Bangla Quick Summary
- Wood screw = কাঠে। মোটা থ্রেড, উপরে স্মুথ শ্যাঙ্ক।
- Metal screw = মেটালে। পুরোটা থ্রেড, ফাইন থ্রেড, শক্ত।
- Self‑drilling = ড্রিল বিটের মতো মাথা।
- Self‑tapping = ধারালো মাথা, নিজে থ্রেড কাটে।
Use wood screws for wood-to-wood joins, metal (sheet‑metal/self‑drilling) screws for metal, drywall screws for gypsum to studs, and concrete/masonry screws or anchors for masonry. Choose thread type, head style, coating, and pilot‑hole size to match the substrate and load.
Comparison table — at a glance
|
Screw Type |
Typical Use |
Thread |
Head / Drive |
Key installation note |
|
Wood screw |
Wood to wood, furniture, decking |
Coarse; partial thread common |
Flat/bugle; Phillips/Star |
Pre‑drill in hardwoods; smooth shank pulls boards tight. |
|
Sheet‑metal / self‑tapping |
Metal to metal, metal to wood, HVAC |
Fine, full‑length thread |
Pan/hex; Phillips/Torx |
Self‑drilling (TEK) tips remove need for pilot hole in thin metal. |
|
Drywall screw |
Gypsum board to wood/metal studs |
Coarse for wood studs; fine for metal |
Bugle head; Phillips |
Use correct length (1¼"–2") and avoid over‑driving to prevent paper tear. |
|
Concrete / masonry screw (Tapcon) |
Concrete, brick, block |
Deep, hardened threads |
Hex/flat; requires masonry bit |
Always pre‑drill with carbide masonry bit; hole depth = embedment + 1/4". |
Quick selection guide (what to ask customers)
- What material are you fastening into? (wood, metal, drywall, concrete)
- Indoor or outdoor? (choose coated or stainless for exterior)
- How heavy is the load? (use anchors/wedge anchors for structural loads)
- Do you need countersunk/flush finish or removable fastener?
Decision tip: For treated lumber or outdoor use, use hot‑dip galvanized or stainless screws to avoid corrosion and staining.
Pilot holes, drill bits & embedment rules
- Wood: pilot hole ≈ core (minor) diameter for hardwoods; countersink for flush heads.
- Metal: self‑drilling screws remove pilot hole for thin gauge; for thicker metal, pre‑drill and use self‑tapping.
- Concrete: use carbide masonry bit sized to screw spec; hole depth = embedment + 1/4"; clean dust before driving.
Coatings & corrosion
- Zinc plated = indoor; blue/Climaseal or special coatings = general exterior; stainless = coastal/wet. Choose stainless for long life in salt air.
Common mistakes & risks
- Wrong thread (wood screw in metal → poor hold).
- No pilot hole in hardwoods → splitting.
- Over‑driving drywall screws → paper tear and weak hold.
- Using concrete screws in uncured concrete → poor performance.
Staff quick checklist (for counter use)
- Identify substrate.
- Ask load and indoor/outdoor.
- Recommend screw type, length (rule: screw ≈ 3× thickness of the piece being fastened), and coating.
- Recommend drill bit size and whether a pilot hole or anchor is required.
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2" Coarse Thread Drywall Screws - 3,500 pieces
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