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    Screws
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    Item # WW39237 • Mfr # 3670000170961 7500

    Würth #8 x 1-1/4" Flat Head Assembly Screw Square Drive - Sharp Point Coarse Thread Lubricated, 3670000170961 7500 - 7500/Box

    Description

    #8 Flat Head Assembly Screw For Wood

    #8 x 1-1/4 flat head assembly screw describes a Wurth fastener built for general assembly where a flat head needs to sit flush in the material, which helps panels draw together cleanly in cabinet or woodworking builds. The sharp point coarse thread design lets the screw start quickly and bite into material with fewer turns, which is useful in production work where repeat fastening is common. This screw is part of Wurth Baer Supply's fasteners line in the screws product class, so it fits naturally into woodworking and cabinet shop applications. The screw is case hardened, meaning the outer surface is hardened in manufacture, which supports resistance to head wear during driving. Uses #2 square drive bits, so the driver engages the recess positively, which helps reduce cam-out during installation.

    Assembly Screw Details That Support Workflow

    • The 1-1/4 x #8 size sets a familiar diameter-to-length balance, which works well for joining typical thickness sheet goods where a moderate-grip fastener is required without excessive breakthrough.
    • The flat head profile is designed to sit down into a countersunk hole, which leaves a relatively flush surface that is easier to cover, edge-band around, or place adjacent parts against.
    • The sharp point works as a self-starting tip in many wood applications, so the screw can start its own path into material, which saves a step when repetitive pilot drilling is not part of the process.
    • The coarse thread form on this screw advances quickly through material, so fewer turns are needed to draw parts together, which can shorten drive time across a run of fastenings.
    • The screw is case hardened according to the product description, which provides a hardened outer shell that helps the drive recess and shank resist wear under powered driving loads.
    • The screw uses a #2 square drive bit, which lets the bit seat firmly and helps keep the driver engaged under torque, supporting more consistent driving in assembly jigs or handheld work.

    Installation Use Of Square Drive Assembly Screw

    Wurth flat head assembly screw uses #2 square drive bits, so installers can rely on a common driver size during assembly, which simplifies bit selection on the bench or on site. The coarse thread described in the web description advances through material rapidly, which suits powered screwdrivers or production drivers where consistent depth and speed are important. The sharp point at the end of the screw lets the point locate its path into wood-based material, which is useful when driving near edges on cabinet parts. Because the head is flat, it settles into a countersink or into softer material, which helps create a surface that is ready for adjacent hardware or finishing steps without additional leveling.

    Using This Case Hardened Coarse Thread Screw

    Where This Square Drive Screw Is Typically Applied

    Square drive assembly screw usage follows from the #2 square drive bit requirement stated in the description, so it belongs in workflows already set up with square drive tools. The 1-1/4 inch length fits assemblies where components are often 3/4 inch or similar thickness panels, letting the screw bridge two parts while retaining bite in the base material. Web description notes that 3/4 inch and 1 inch lengths in this line are fully threaded, while other sizes, which would include the 1-1/4 inch length, are threaded two-thirds from the bottom of the screw. That thread layout leaves a non-threaded upper shank on this length, which can help the upper piece pull tight toward the lower piece as the threaded portion draws into the base. Because the screw is in the screws product class within fasteners at Wurth Baer Supply, it fits building cabinets, fixtures, or other woodworking assemblies that rely on consistent fastener performance.

    The sharp point coarse thread lubricated design identified by the SAP description and web description works together in use. The sharp point defines how the screw initially pierces and engages material, which helps the tip follow a straight path once driving begins. The coarse thread grabs wood fibers efficiently, so grip is built up quickly in typical woodworking substrates. Lubricated in the product name and SAP description refers to the screw having lubrication applied, which reduces friction between the threads and the material during driving, supporting smoother installation with less driving effort. The case hardened construction described in the web data means the outer surface is hardened, so the drive recess and outer shank are better able to tolerate repeated high-torque driving often seen in shop or field conditions. Together, these attributes support repeatable assembly where driving consistency and head integrity affect throughput and rework.

    Buyer Questions On #8 Flat Head Assembly Screw

    What materials suit the sharp point coarse thread design?

    The sharp point coarse thread lubricated screw is described for general assembly, so its self-starting point and coarse thread are suited to many wood-based assembly tasks where fast driving is needed.

    How does the case hardened construction affect driving?

    The case hardened assembly screw has a hardened outer layer, which helps the head and drive recess withstand powered driving torque, supporting repeated installations with reduced recess wear.

    Why does this 1-1/4 inch length have partial threading?

    The web description states only 3/4 and 1 inch lengths are fully threaded, so the 1-1/4 inch length uses two-thirds bottom threading, which helps pull an upper component tight against the base piece.

    What driver bit is required for this Wurth screw?

    The Wurth #8 x 1-1/4 flat head assembly screw uses #2 square drive bits, so a #2 square driver engages the recess positively for controlled torque transfer.

    How does the flat head style affect finished surfaces?

    The flat head profile is made to sit flush in a countersink or compress into softer material, which leaves a smoother surface for hinges, brackets, or finishing steps.

    Why is lubrication mentioned for this coarse thread screw?

    The lubricated description indicates the screw is treated to reduce friction as threads cut into material, which supports smoother driving and more consistent seating depth.

    Selecting This Wurth Screw For Assembly Tasks

    Case hardened assembly screw design in this Wurth #8 x 1-1/4 flat head product gives installers a coarse thread, sharp point, and lubricated surface that work together during assembly. For cabinet or woodworking builds relying on #2 square drive tools, this combination supports consistent pull-down and driving performance across repeated fastenings.

    Catalog
    P-9
    Color/Finish
    Lubricated
    Gauge
    8
    Length
    1-1/4 in
    Thread
    Coarse thread
    With Nibs
    No
    Point Type
    Sharp
    Head Type
    Flat head
    Drive Size
    #2
    Drive Type
    Square
    Product Type
    Assembly Screw
    Number of pieces
    7500
    Supplier Pack Size
    7500
    Sold In
    7500
    Catalog
    P-9
    Color/Finish
    Lubricated
    Gauge
    8
    Length
    1-1/4 in
    Thread
    Coarse thread
    With Nibs
    No
    Point Type
    Sharp
    Head Type
    Flat head
    Drive Size
    #2
    Drive Type
    Square
    Product Type
    Assembly Screw
    Number of pieces
    7500
    Supplier Pack Size
    7500
    Sold In
    7500
    1 in1-1/4 in1-1/2 in1-3/4 in2 in2-1/4 in2-1/2 in3 in
    1000150025003000350040005000750010000
    Würth
    $375.00/7500 Each
    $0.05 /Each
    Würth #8 x 1-1/4" Flat Head Assembly Screw Square Drive - Sharp Point Coarse Thread Lubricated, 3670000170961 7500 - 7500/Box
    Item# WW39237 / MFR Part # 3670000170961 7500
    Each
    Each
    In Stock

    Sold In: 7500 Each

    Each

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