Drywall, Self-Tapping, Wood, Machine & Specialty Screws
Screw production in China spans every category from high-volume drywall and chipboard screws to specialized self-drilling roofing screws and precision machine screws. HDBolt sources from factories matched to each screw type — point geometry, thread design, and surface finish all dramatically affect real-world performance.
Sub-categories
Drywall Screw
Drywall screws have a bugle-shaped head that countersinks into drywall paper without tearing it, plus an aggressive thre...
Self-Tapping Screw
Self-tapping screws cut their own thread in pre-drilled holes in metal, plastic, or wood. The point type determines the ...
Self-Drilling (Tek) Screw
Self-drilling screws (universally called 'Tek screws') drill their own pilot hole in metal as they are driven, eliminati...
Wood Screw
Traditional wood screws have a tapered shank with a sharp gimlet point, designed for partial pre-drilling in solid wood....
Chipboard Screw / Particle Board Screw
Chipboard screws (or 'Euro-style' wood screws) are the general-purpose modern screw for wood and engineered wood product...
Deck Screw
Deck screws are wood screws optimized for exterior decking and treated lumber service: heavy corrosion-resistant coating...
Roofing Screw
Roofing screws are self-drilling screws specifically designed for metal roofing and cladding. They feature a hex washer ...
Machine Screw
Machine screws have a uniform machine thread along the full length and a flat tip — designed to thread into a tapped hol...
Set Screw
Set screws (also called grub screws) are headless threaded fasteners with a hex-key (or slotted) drive in one end and a ...
Socket Cap Screw / Allen Bolt
Socket cap screws (commonly 'Allen bolts' after the Allen drive) are high-strength precision screws with a hex-socket dr...
Button Head Socket Cap Screw
Button head socket cap screws have a low-profile, slightly domed head with a hex socket drive. They provide a finished, ...
Countersunk Socket Cap Screw
Countersunk socket cap screws have a flat, conical head that sits flush in a countersunk hole, with a hex socket drive i...
Thumb Screw
Thumb screws have a knurled or wing-shaped head designed to be tightened by hand without a tool. Used in temporary or fr...
Sheet Metal Screw
Sheet metal screws are a workhorse for thin-gauge sheet steel and aluminum. Type AB point (sharp gimlet with machine-thr...
Concrete Screw (Concrete Anchor Screw)
Concrete screws thread directly into a pre-drilled hole in concrete, brick, or block, cutting their own thread without a...