Flat head assembly screw combo drive describes this Wurth #8 x 1-1/2 inch flat head assembly screw that is designed for fastening tasks where a flush head is needed so joined parts sit tight against each other in the final assembly. The screw uses a sharp point with coarse thread so it bites quickly into material and advances with fewer turns, which speeds up driving in repetitive work. The screw is lubricated, which reduces driving friction so bits seat more easily and installation requires less effort during long runs. The screw is case hardened, giving it a hard outer surface so the head and drive area resist wear during driving and later adjustments. The combo drive design works with #2 square drive bits as the primary insertion method, and #2 Phillips drive bits can be used for aftermarket adjustment, which supports service work on existing installations.
This Wurth assembly screw uses a combo drive that accepts #2 square drive bits for insertion, so installers can rely on a positive bit engagement during initial driving. The ability to use #2 Phillips drive bits for aftermarket adjustment means the same fastener can be revisited with commonly available drivers during service work or alignment corrections. The sharp point and coarse thread pairing allows the screw to cut into material as it advances, so the fastener draws components together efficiently while limiting driver strain. The lubricated screw surface further eases this process by lowering friction at the threads, so consistent driving depth is easier to achieve from one screw to the next.
The SAP description identifies this fastener as 1-1/2x8, CRS, RECEX, FLAT LUBE, which aligns with the #8 x 1-1/2 inch flat head assembly screw combo drive details and clarifies its role as a coarse thread, lubricated assembly screw. The sharp point and coarse thread design support use where material accepts this type of bite, so components are pulled together firmly as the screw advances. Because this is a flat head assembly screw, it is suited to applications where the head should sit level with or below the surface, so parts stack or align cleanly. The case hardened construction supports these uses by giving the head and drive recess resistance to rounding, so the screw continues to function during any later adjustments. The combo drive works with #2 square drive bits for main installation, so shops using square drive systems can drive this fastener consistently alongside other square driven screws.
The web description states that 3/4 inch and 1 inch lengths are threaded fully and all other sizes are threaded two-thirds from the bottom of the screw, so this 1-1/2 inch size carries that two-thirds bottom threading pattern that affects how clamping force develops across joined materials. That threaded section concentrates pull nearer the point, so the screw can draw parts tightly together while the unthreaded upper portion helps the head seat as components align. Using #2 square drive bits for insertion gives the installer a stable engagement in the combo drive recess, so cam-out risk is reduced during torque application. The option to use #2 Phillips drive bits for aftermarket adjustment means the same installed screw can be backed off or tightened later with widely available drivers, supporting field service. The lubricated surface interacts with the coarse thread by cutting friction as the threads form their path, so consistent driving depth and seating torque are more predictable across repeated joints.
This Wurth assembly screw is #8 x 1-1/2 inch, so it provides a length and diameter suited to fastening where that reach and grip are required in an assembly.
The 1-1/2 inch length is threaded two-thirds from the bottom of the screw, so pull is concentrated toward the point while the upper shank helps parts draw together tightly.
The combo drive head uses #2 square drive bits for insertion, and #2 Phillips drive bits can be used for aftermarket adjustment, so installation and later tuning share common driver sizes.
This screw is case hardened, giving the exterior higher hardness so the head and recess better resist wear during driving and later readjustment cycles.
The sharp point and coarse thread allow the screw to start quickly and advance aggressively, so driving requires fewer turns and supports quicker assembly work.
This assembly screw is lubricated, which reduces friction between threads and material so torque demand drops and seating depth is more consistent across repeated installations.
This Wurth #8 x 1-1/2 inch flat head assembly screw combo drive combines a sharp point, coarse thread, lubrication, and case hardened construction so fastening is efficient and repeatable. The two-thirds bottom threading pattern on this length shapes how joints pull tight, while the flat head supports flush seating where surfaces must align. With primary insertion by #2 square drive bits and aftermarket adjustment using #2 Phillips drive bits, the same screw supports both production driving and later field service using common drivers. For projects that match this size and thread style, this fastener offers a defined set of characteristics for planned assembly workflows.
Sold In: 1000 Each
