Slotted CS Head Machine Screws with Full Dog Point

Precision fastening solutions often demand components that combine easy drive engagement with reliable positioning. Our Slotted CS Head Machine Screws with Full Dog Point fulfill these requirements through a carefully engineered design featuring a countersunk head and a full-length dog point. The slotted drive allows straightforward torque application using common flat-blade tools, while the unthreaded cylindrical tip guides the screw into pre-tapped holes and prevents cross-threading during automated or manual assembly. This product family includes several specialized variants to address specific installation needs. For applications requiring a flat-bearing surface, the Straight Slot Countersunk Screws Full Dog Point Tip delivers consistent clamping force with a clean finish. When a tapered underhead is critical for flush seating in softer materials, Single Slotted Tapered Countersunk Fasteners Full Dog Point offers enhanced embedment control. For high-load assemblies, the Slotted Conical Sink Head Screws with Complete Dog Point provides a wider stress distribution cone, reducing the risk of head pull-through. All these configurations share the core advantages of a distinct dog point and slotted drive, making them interchangeable in numerous clamping, locking, and alignment tasks across machinery, automotive components, and electronic enclosures.

are manufactured from select alloy steels and stainless steel grades to meet demanding environmental and mechanical conditions. The full dog point is precision-ground to a consistent diameter that matches the minor diameter of the mating thread, ensuring a smooth lead-in without sacrificing thread engagement. The countersunk head is angled at 82°, which corresponds to standard imperial countersink bores, and the slot is broached to exacting depth and width tolerances to minimize driver cam-out. Surface finishes include black oxide, zinc plating with clear or yellow chromate, and passivated stainless steel for corrosion resistance. These screws are frequently specified where a component must be repeatedly assembled and disassembled, as the dog point preserves the threaded hole alignment and reduces wear on the first engaging thread. Typical applications include guide pins, adjustable stops, locking screws for collars and pulleys, and precision fixturing where positional accuracy directly impacts product quality.

• Material Options: Alloy steel (Grade 4.6, 8.8, 10.9), 18-8 stainless steel, 316 stainless steel
• Thread Standard: Unified Coarse (UNC) and Unified Fine (UNF) in imperial sizes; metric coarse and fine threads available
• Head Style: 82° flat countersunk head with plain or undercut bearing surface
• Drive Type: Single slotted drive meeting ANSI/ASME B18.6.3 specifications
• Dog Point Configuration: Full dog point with diameter approximately equal to thread minor diameter, length per industry standards
• Finish & Compliance: Black oxide per MIL-DTL-13924, zinc clear/yellow per ASTM B633, passivated per ASTM A967; RoHS and REACH compliant
• Packaging: Bulk packing, poly bags, and custom kitting available

Dimensional tolerances conform to ISO 4759-1 and ANSI/ASME B18.6.3 where applicable. For custom lengths, plating, or dog point modifications, additional engineering support is available to tailor the fastener to exact assembly requirements.