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    Screws
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    Item # WL5B81750B • Mfr # 5442

    #8 x 1-3/4" Flat Head Assembly Screws, Square/Phillips Drive Coarse Thread with Nibs and Double Auger Point, Lubricated, Box of 5000 by Quickscrews

    Description

    Quickscrews Assembly Screw For Panel-to-Frame Production Work

    The Quickscrews #8 x 1-3/4" flat head assembly screw is built for cabinet boxes, face frames, and panel joinery where the workpiece thickness calls for a screw that buries deep enough to grip without punching through the back face. A 1-3/4" length finds solid purchase in 3/4" stock joined to a second member, making it a workhorse length across softwood framing, furniture panel assembly, and shop casework construction.

    Key Features

    • 1-3/4" length sized to reach through one panel and bite firmly into the member behind it without over-penetrating thin stock.
    • Flat head with nibs mills its own countersink in wood-based materials so the head seats flush without a separate countersink step.
    • Double auger point clears chips through two opposing flutes, reducing torque and splitting resistance in softwood and sheet goods.
    • Coarse thread designed for maximum pull-out resistance in softwood, plywood, MDF, and particleboard.
    • Square/Phillips combination drive accepts a #2 square bit or a #2 Phillips bit in the same recess, keeping work moving regardless of which bit is in the gun.
    • Lubricated finish reduces driving friction for faster, lower-torque installation across a full production run.

    Where This Length Fits the Job

    At 1-3/4", this screw is well matched to joints where 3/4" material overlaps a second panel or frame member. Think cabinet back rails fastened through the side panel, shelf cleats screwed into a softwood carcase, or furniture panel assemblies where a 1-1/2" screw would leave too little thread engagement and a 2" screw would risk breaking through on narrower stock. It also handles drawer box corner joints in 1/2" material when the combined thickness plus depth demands more bite than a shorter screw provides. Softwood pine and poplar, sanded plywood, MDF, and melamine-faced particleboard are all within its wheelhouse.

    Head, Point, and Thread Working Together

    The flat head's underside nibs do the countersink work as the screw seats, cutting cleanly into the surface layer without a pre-drilled recess. This matters in production settings where running a countersink bit on every hole adds cycle time. The double auger point opens the path for the thread with two chip-clearing flutes rather than one, so the screw starts with less resistance and less tendency to split material near an edge. Coarse threads are the correct thread form for softwood and engineered panels: the wider pitch locks into wood fiber and compacted core material with strong withdrawal resistance. The lubricated coating keeps driving torque low across repetitive fastening, reducing driver wear and head-stripping risk on long runs.

    Who This Screw Suits

    Cabinet shops running production batches benefit most from the 5000-piece box, the lubricated finish, and the combination drive that keeps the line moving when a Phillips-only bit is already loaded. Furniture manufacturers assembling softwood and plywood carcases get a reliable, flush-seating screw without adding process steps. Contractors and trim carpenters who reach for a coarse-thread flat head for interior panel work will find the 1-3/4" length covers the majority of their single-to-double-panel joints. This screw is for dry interior applications only. It carries a standard lubricated finish, not a corrosion-rated coating, so outdoor and high-humidity environments are outside its range.

    Common Questions

    Why choose 1-3/4" over 1-1/2" for 3/4" panel work?

    The extra 1/4" adds thread engagement in the receiving member, which matters when the second piece is softwood or a lower-density panel. More thread depth in the substrate means better withdrawal resistance under load or repeated cycling.

    Does the combination drive mean I need a special bit?

    No. The recess accepts a standard #2 square bit or a standard #2 Phillips bit. You do not need a proprietary or dedicated bit — whichever is already in your driver handles the job.

    Will the nibs countersink into hardwood or laminate faces?

    Nibs are most effective in softwood, plywood, MDF, and particleboard. In dense hardwood, a pre-drilled countersink is recommended for a clean, flush result. On laminate-faced panels, pre-drilling protects the surface layer from lifting around the head.

    Is this screw suitable for pocket-hole joinery?

    This is a flat head assembly screw, not a pocket-hole screw. Pocket-hole joinery requires a pan or washer head with an unthreaded shank section to pull the joint tight. This screw is sized for face-fastening and panel assembly, not angled pocket bores.

    Can this be used with an auto-feed or collated screw gun?

    No. These are loose-packed screws and are not compatible with collated-strip auto-feed drivers. They are designed for standard drill-drivers and impact drivers.

    A Production-Ready Flat Head for Panel and Casework Assembly

    The Quickscrews #8 x 1-3/4" assembly screw delivers the length, head, point, thread, and drive combination that cabinet and furniture shops need for clean, efficient panel joining across softwood, plywood, and engineered-panel carcases — 5000 to the box so the line keeps running.

    Catalog
    P-11
    Gauge
    8
    Length
    1-3/4 in
    Thread
    Coarse thread
    With Nibs
    Yes
    Point Type
    Double Auger
    Head Type
    Flat head
    Drive Size
    #2
    Drive Type
    Combo
    Product Type
    Assembly Screw
    Number of pieces
    5000
    Supplier Pack Size
    5000
    Sold In
    5000
    Catalog
    P-11
    Gauge
    8
    Length
    1-3/4 in
    Thread
    Coarse thread
    With Nibs
    Yes
    Point Type
    Double Auger
    Head Type
    Flat head
    Drive Size
    #2
    Drive Type
    Combo
    Product Type
    Assembly Screw
    Number of pieces
    5000
    Supplier Pack Size
    5000
    Sold In
    5000
    1-1/4 in1-1/2 in1-3/4 in2 in2-1/2 in3 in
    5001000200025004000500070009000
    Quickscrews
    $300.00/5000 Each
    $0.06 /Each
    #8 x 1-3/4" Flat Head Assembly Screws, Square/Phillips Drive Coarse Thread with Nibs and Double Auger Point, Lubricated, Box of 5000 by Quickscrews
    Item# WL5B81750B / MFR Part # 5442
    Each
    Each
    Backorder

    Sold In: 5000 Each

    Each

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