The LD-345 black phosphate drywall screw assortment equips contractors, furniture makers, and hardware distributors with the six most-used drywall and wood screw sizes in a single organized package. Each screw is cold-forged from carbon steel and finished with a black phosphate coating that improves corrosion resistance while reducing driving friction, a combination that helps the screw seat cleanly into gypsum board and wood without cam-out or surface tearing. The bugle head design distributes clamping pressure across a wide bearing surface, pulling the drywall sheet flat against the stud and creating a shallow recess that requires minimal joint compound to finish flush.

The assortment spans #6 x 1" (25mm) and #6 x 1-1/4" (32mm) for single-layer drywall to wood studs, #6 x 1-5/8" (41mm) for standard residential drywall-to-wood fixing, #8 x 2" (50mm) and #8 x 2-1/2" (65mm) for thicker boards and wood-to-wood framing, and #10 x 3" (75mm) for heavier carpentry and substructure assembly. The sharp point enables fast, self-starting penetration without pre-drilling, while the Phillips drive accepts standard drywall screwguns and bit tips for high-speed installation. Coarse thread grips wood and gypsum aggressively to resist pull-out, and a fine-thread option is available for fastening to light-gauge metal studs where coarse thread can strip.

Surface finish options include black phosphate for the classic drywall-screw appearance, gray phosphate for a lighter industrial look, and zinc plating for upgraded corrosion resistance in humid or semi-exposed environments. The black phosphate finish also provides a degree of lubricity that extends bit life and reduces the heat build-up that can lead to premature tip wear during long installation runs. Screws are supplied in open cardboard boxes for bulk job-site use or in compartmentalized assortment boxes that keep sizes separated and clearly labeled.

For wholesale buyers, the LD-345 supports full OEM customization including custom thread type and size mix, finish selection, drive type, logo printing, and bespoke assortment compositions tailored to regional building practices. With an MOQ of 500 pieces, mixed-order flexibility, and CE / ISO 9001 / RoHS / SGS compliance, it is an ideal stock item for building-material suppliers, drywall contractors, and fastener importers seeking a complete drywall screw program.